The fact that DNA bears the genetic information of an organism implies that (A) Base composition should be identical from species to species (B) DNA base composition should charge with age (C) DNA from different tissues in the same organism should usually have the same base composition (D) DNA base composition is altered with nutritional state of an organism

The fact that DNA bears the genetic information of an organism implies that (A) Base composition should be identical from species to species (B) DNA base composition should charge with age (C) DNA from different tissues in the same organism should usually have the same base composition (D) DNA base composition is altered with nutritional state of an organism
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Consider the following statements (A – D) each with one or two blanks. (A) Bears go into (1) during winter to (2) cold weather. (B) A conical age pyramid with a broad base represents (3) human population. (C) A wasp pollinating a fig flower is an example of (4) . (D) An area with high levels of species richness is known as (5) .

Description : Consider the following statements (A - D) each with one or two blanks. (A) Bears go into (1) during winter to (2) cold weather. (B) A conical age pyramid with a broad base represents (3) human population. ... example of (4) . (D) An area with high levels of species richness is known as (5) .

Last Answer : (D) An area with high levels of species richness is known as (5) .

The essential amino acids (A) must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) must be supplied in the diet because the human has an impaired ability to synthesize the carbon chain of the corresponding ketoacids (C) are identical in all species studied (D) are defined as these amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Description : The essential amino acids (A) must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Last Answer : Answer : B

The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the human has an impaired ability to synthesize the carbon chain of the corresponding ketoacids (C) Are identical in all species studied (D) Are defined as those amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Description : The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Last Answer : Answer : B

A metagenome refers to a. A Large Genome In An Organism. b. The Collective Genomes Of Many Organisms. c. The Genome Of A Metazoan. d. Two Identical Genomes In Different Species.

Description : A metagenome refers to a. A Large Genome In An Organism. b. The Collective Genomes Of Many Organisms. c. The Genome Of A Metazoan. d. Two Identical Genomes In Different Species.

Last Answer : b. The Collective Genomes Of Many Organisms.

DNA is (A) Usually present in tissues as a nucleo protein and cannot be separated from its protein component (B) A long chain polymer in which the internucleotide linkages are of the diester type between C-3’ and C-5’ (C) Different from RNA since in the latter the internucleotide linkages are between C-2’ and C-5’ (D) Hydrolyzed by weal alkali (pH9 to 100°C)

Description : DNA is (A) Usually present in tissues as a nucleo protein and cannot be separated from its protein component (B) A long chain polymer in which the internucleotide linkages are of the diester type between C-3 ... linkages are between C-2' and C-5' (D) Hydrolyzed by weal alkali (pH9 to 100°C)

Last Answer : Answer : B

Degeneracy of genetic code implies that (A) Codons do not code for specific amino acid (B) Multiple codons must decode the same amino acids (C) No anticodon on tRNA molecule (D) Specific codon decodes many amino acids

Description : Degeneracy of genetic code implies that (A) Codons do not code for specific amino acid (B) Multiple codons must decode the same amino acids (C) No anticodon on tRNA molecule (D) Specific codon decodes many amino acids

Last Answer : Answer : B

During which step of cellular carcinogenesis do cellular changes exhibit increased malignant behavior? a) Progression During this third step, cells show a propensity to invade adjacent tissues and metastasize. b) Promotion During promotion, repeated exposure to promoting agents causes the expression of abnormal genetic information even after long latency periods. c) Initiation During this first step, initiators such as chemicals, physical factors, and biologic agents escape normal enzymatic mechanisms and alter the genetic structure of cellular DNA. d) Prolongation No stage of cellular carcinogenesis is termed prolongation.

Description : During which step of cellular carcinogenesis do cellular changes exhibit increased malignant behavior? a) Progression During this third step, cells show a propensity to invade adjacent tissues and ... of cellular DNA. d) Prolongation No stage of cellular carcinogenesis is termed prolongation.

Last Answer : a) Progression During this third step, cells show a propensity to invade adjacent tissues and metastasize.

Which of the following are determinants of the host response to surgical stress? a. Gender b. Age c. Nutritional status d. Body composition

Description : Which of the following are determinants of the host response to surgical stress? a. Gender b. Age c. Nutritional status d. Body composition

Last Answer : Answer: a, b, c, d The pattern of physiologic changes elicited in response to surgical stress results from the specific interaction of an individual patient with a stressful stimulus. Several ... net loss of nitrogen after major elective abdominal surgery generally being lower in women than in men

Can two normal individuals of the same species with sexual reproduction have identical genomes and identical karyotypes ? How the human karyotype is usually represented?

Description : Can two normal individuals of the same species with sexual reproduction have identical genomes and identical karyotypes ? How the human karyotype is usually represented?

Last Answer : Except for clones (individuals created from nucleus transplantation, like the Dolly sheep) and monozygotic twins, it is very improbable the genomes of two individuals of the same species and generated by sexual ... normal karyotype is represented by the formula 44+XX for women and 44+XY for men.

Two compounds have the same composition and also have the same atoms attached to the same atoms, although with different orientations in space. These compounds are (a) Identical (b) Position isomers (c) Structural isomers (d) Stereoisomers

Description : Two compounds have the same composition and also have the same atoms attached to the same atoms, although with different orientations in space. These compounds are (a) Identical (b) Position isomers (c) Structural isomers (d) Stereoisomers

Last Answer : Stereoisomers

The genetic code operates via (A) The protein moiety of DNA (B) The base sequences of DNA (C) The nucleotide sequence of mRNA (D) The base sequence of tRNA

Description : The genetic code operates via (A) The protein moiety of DNA (B) The base sequences of DNA (C) The nucleotide sequence of mRNA (D) The base sequence of tRNA

Last Answer : Answer : C

You are given a set of scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weight the same or that the dish that falls lower has heavier contents than the other. The 12 marbles appear to be identical. In fact, 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more. Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light -Riddles

Description : You are given a set of scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables ... than the others. You are asked to both identify it and determine whether it is heavy or light -Riddles

Last Answer : Most people seem to think that the thing to do is weight six coins against six coins, but if you think about it, this would yield you no information concerning the whereabouts of the only different coin. ... . The heavier one is the different coin. If they balance, then 2 is a different light coin.

When two genetic loci produce identical phenotypes in cis and trans position, they are considered to be (a) multiple alleles (b) the parts of same gene (c) pseudoalleles (d) different genes

Description : When two genetic loci produce identical phenotypes in cis and trans position, they are considered to be (a) multiple alleles (b) the parts of same gene (c) pseudoalleles (d) different genes

Last Answer : (c) pseudoalleles

In a physical change some of the physical properties of the substance may be altered and the chemical composition?

Description : In a physical change some of the physical properties of the substance may be altered and the chemical composition?

Last Answer : In a physical change, the chemical composition of a substance is never changed.

Which of the following is true? (1) DNA is the genetic material in most of the organism (2) RNA is the genetic material in most viruses and bacteria (3) DNA is the genetic material in all the viruses (4) RNA is the genetic material in all the viruses

Description : Which of the following is true? (1) DNA is the genetic material in most of the organism (2) RNA is the genetic material in most viruses and bacteria (3) DNA is the genetic material in all the viruses (4) RNA is the genetic material in all the viruses

Last Answer : (1) DNA is the genetic material in most of the organism Explanation: Deoxyribonucleic acid (DNA) molecules are informational molecules encoding the genetic instructions used in the development and functioning of all ... letters. G, A, T, and C. DNA is well-suited for biological information storage.

.After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Description : .After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Last Answer : (d) RNA transcription pattern.

After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Description : After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Last Answer : a) protein structure

A transgenic organism is one that _____. a. Has Donated A DNA Fragment To Another Organism. b. Contains A Gene From Another Organism. c. Contains Useless "Genetic Debris." d. Has Exchanged Gene Loci Within The Organism.

Description : A transgenic organism is one that _____. a. Has Donated A DNA Fragment To Another Organism. b. Contains A Gene From Another Organism. c. Contains Useless "Genetic Debris." d. Has Exchanged Gene Loci Within The Organism.

Last Answer : b. Contains A Gene From Another Organism.

Which of the following is true ? (1) DNA is the genetic material in most of the organism (2) RNA is the genetic material in most viruses and bacteria (3) DNA is the genetic material in all the viruses (4) RNA is the genetic material in all the viruses

Description : Which of the following is true ? (1) DNA is the genetic material in most of the organism (2) RNA is the genetic material in most viruses and bacteria (3) DNA is the genetic material in all the viruses (4) RNA is the genetic material in all the viruses

Last Answer : DNA is the genetic material in most of the organism

The restriction enzymes are used in genetic engineering, because (a) they can cut DNA at specific base sequence (b) they are nucleases that cut DNA at variable sites (c) they can degrade harmful proteins (d) they can join different DNA fragments.

Description : The restriction enzymes are used in genetic engineering, because (a) they can cut DNA at specific base sequence (b) they are nucleases that cut DNA at variable sites (c) they can degrade harmful proteins (d) they can join different DNA fragments.

Last Answer : (a) they can cut DNA at specific base sequence

If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually resistant species, penicillin is not indicated c. Immediate operative intervention and aggressive resection of all involved tissues is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous

Description : If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually ... is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous

Last Answer : Answer: a, c Identification of a necrotizing, soft tissue infection mandates immediate operative intervention with aggressive resection of all involved tissues and empiric ... remains without controlled trials demonstrating any additional benefits derived from hyperbaric oxygen therapy

Why are two samples of proteins having an identical composition of amino acids still different?

Description : Why are two samples of proteins having an identical composition of amino acids still different?

Last Answer : I would guess that two proteins with the same sequences of amino acids might be folded in different ways giving them different properties.

With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion). (A) Increases (B) Decreases (C) Remain same (D) Increases linearly

Description : With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion). (A) Increases (B) Decreases (C) Remain same (D) Increases linearly

Last Answer : (A) Increases

For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single (A) CSTR of volume V (B) PFR of volume V (C) CSTR of volume V/X (D) PFR of volume V/X

Description : For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single (A) CSTR of volume V (B) PFR of volume V (C) CSTR of volume V/X (D) PFR of volume V/X

Last Answer : (B) PFR of volume V

How do these two different types of cells function differently in the same organism even though they both contain the same genetic instructions?

Description : How do these two different types of cells function differently in the same organism even though they both contain the same genetic instructions?

Last Answer : During the process of differentiation the cells effectively "reprogrammed" themselves by selectively inhibiting some genes while enabling other genes. Only the enabled genes are able to be expressed. ... gene itself, preventing the enzymes responsible for transcribing the gene to mRNA from binding.

The protein, which is in fact a multifunctional enzyme complex in higher organism is (A) Acetyl transacylase (B) Malonyl transacylase (C) 3-Hydroxy acyl-ACP dehyratase (D) Fatty acid synthase

Description : The protein, which is in fact a multifunctional enzyme complex in higher organism is (A) Acetyl transacylase (B) Malonyl transacylase (C) 3-Hydroxy acyl-ACP dehyratase (D) Fatty acid synthase

Last Answer : Answer : D

In the process of transcription, the flow of genetic information is from (A) DNA to DNA (B) DNA to protein (C) RNA to protein (D) DNA to RNA

Description : In the process of transcription, the flow of genetic information is from (A) DNA to DNA (B) DNA to protein (C) RNA to protein (D) DNA to RNA

Last Answer : Answer : D

Unit of genetic information: (A) DNA (B) RNA (C) Cistron (D) None of these

Description : Unit of genetic information: (A) DNA (B) RNA (C) Cistron (D) None of these

Last Answer : Answer : C

In DNA, genetic information is located in (A) Purine bases (B) Pyrimidine bases (C) Purine and pyrimidine bases (D) sugar

Description : In DNA, genetic information is located in (A) Purine bases (B) Pyrimidine bases (C) Purine and pyrimidine bases (D) sugar

Last Answer : Answer : C

Genetic information in human beings is stored in (A) RNA (B) DNA (C) Both (A) and (B) (D) mRNA

Description : Genetic information in human beings is stored in (A) RNA (B) DNA (C) Both (A) and (B) (D) mRNA

Last Answer : Answer : B

Genetic information in human beings is stored in (A) DNA (B) RNA (C) Both (A) and (B) (D) None of these

Description : Genetic information in human beings is stored in (A) DNA (B) RNA (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

Blue print for genetic information residues in (A) mRNA (B) tRNA (C) rRNA (D) DNA

Description : Blue print for genetic information residues in (A) mRNA (B) tRNA (C) rRNA (D) DNA

Last Answer : Answer : D

Genetic information originates from (A) Cistron of DNA (B) Codons of mRNA (C) Anticodons of tRNA (D) Histones of nucleoproteins

Description : Genetic information originates from (A) Cistron of DNA (B) Codons of mRNA (C) Anticodons of tRNA (D) Histones of nucleoproteins

Last Answer : Answer : A

Genetic information flows from (A) DNA to DNA (B) DNA to RNA (C) RNA to cellular proteins (D) DNA to cellular proteins

Description : Genetic information flows from (A) DNA to DNA (B) DNA to RNA (C) RNA to cellular proteins (D) DNA to cellular proteins

Last Answer : Answer : B

In the process of transcription, the flow of genetic information is from (A) DNA to DNA (B) DNA to protein (C) RNA to protein (D) DNA to RNA

Description : In the process of transcription, the flow of genetic information is from (A) DNA to DNA (B) DNA to protein (C) RNA to protein (D) DNA to RNA

Last Answer : Answer : D

Genetic information of nuclear DNA is transmitted to the site of protein synthesis by (A) rRNA (B) mRNA (C) tRNA (D) Polysomes

Description : Genetic information of nuclear DNA is transmitted to the site of protein synthesis by (A) rRNA (B) mRNA (C) tRNA (D) Polysomes

Last Answer : D

Two or more species coexist in a place due to the reason a). Different nutritional requirement b). Different causes of mortality c). Different time demand for growth factors d). All

Description : Two or more species coexist in a place due to the reason a). Different nutritional requirement b). Different causes of mortality c). Different time demand for growth factors d). All

Last Answer : d). All

Who discovered the base composition of DNA?

Description : Who discovered the base composition of DNA?

Last Answer : Ans. Chargaff (1953)

The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized tissues perform different functions in the organism. (iv) Entire surface of the organism is in contact with the environment for taking in food. (a) (i) and (iii) (b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Description : The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized ... b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Last Answer : Answer: (c)

Male sterily is not due to a. Genetic factor b. Genome factor c. Cytogenetic factor d. Nutritional factor

Description : Male sterily is not due to a. Genetic factor b. Genome factor c. Cytogenetic factor d. Nutritional factor

Last Answer : Nutritional factor

What is a type of reproduction where one organism divides into two and there is no exchange of genetic information.?

Description : What is a type of reproduction where one organism divides into two and there is no exchange of genetic information.?

Last Answer : Need answer

Which of the statements give below is correct with respect to frameshift mutation a) a single nucleotide base change, insertion, or deletion of the genetic material b) Glutamine is replaced by valine c) Sickle cell anemia is an example d) insertions or deletions of a number of nucleotides in a DNA sequence that is not divisible by three.

Description : Which of the statements give below is correct with respect to frameshift mutation a) a single nucleotide base change, insertion, or deletion of the genetic material b) Glutamine is replaced by valine c) ... or deletions of a number of nucleotides in a DNA sequence that is not divisible by three.

Last Answer : d) insertions or deletions of a number of nucleotides in a DNA sequence that is not divisible by three.

Genetic code is said to be degenerate because (A) It can undergo mutations (B) A large proportion of DNA is non-coding (C) One codon can code for more than one amino acids (D) More than one codons can code for the same amino acids

Description : Genetic code is said to be degenerate because (A) It can undergo mutations (B) A large proportion of DNA is non-coding (C) One codon can code for more than one amino acids (D) More than one codons can code for the same amino acids

Last Answer : Answer : D

The flow of genetic material in microbial cells usually takes place from A- RNA through DNA to proteins B- proteins through RNA to DNA C- .DNA through RNA to proteins D- none of these

Description : The flow of genetic material in microbial cells usually takes place from A- RNA through DNA to proteins B- proteins through RNA to DNA C- .DNA through RNA to proteins D- none of these

Last Answer : .DNA through RNA to proteins

If there are 999 bases in an RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered? (a) 11 (b) 33 (c) 333 (d) 1

Description : If there are 999 bases in an RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered? (a) 11 (b) 33 (c) 333 (d) 1

Last Answer : (d) 1

If there are 999 bases in an RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered? (a) 11 (b) 33 (c) 333 (d) 1

Description : If there are 999 bases in an RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered? (a) 11 (b) 33 (c) 333 (d) 1

Last Answer : b) 33

Wobble position means a) Base paring b) altered base on code b) third altered base on codon d) none of the above

Description : Wobble position means a) Base paring b) altered base on code b) third altered base on codon d) none of the above

Last Answer : b) third altered base on codon

If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered ? (1) 11 (2) 33 (3) 333 (4) 1

Description : If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered ? (1) 11 (2) 33 (3) 333 (4) 1

Last Answer : (2) 33

The only correct statement about oncoviruses is (A) All the oncoviruses are RNA viruses (B) Reverse transcriptase is present in all oncoviruses (C) Viral oncogenes are identical to human protooncogens (D) Both DNA and RNA viruses can be oncoviruses

Description : The only correct statement about oncoviruses is (A) All the oncoviruses are RNA viruses (B) Reverse transcriptase is present in all oncoviruses (C) Viral oncogenes are identical to human protooncogens (D) Both DNA and RNA viruses can be oncoviruses

Last Answer : Answer : D

All of the following statements about nonsense codons are true except (A) They do not code for amino acids (B) They act as chain termination signals (C) They are identical in nuclear and mitochondrial DNA (D) They have no complementary anticodons

Description : All of the following statements about nonsense codons are true except (A) They do not code for amino acids (B) They act as chain termination signals (C) They are identical in nuclear and mitochondrial DNA (D) They have no complementary anticodons

Last Answer : Answer : C