When process adds new genes to a gene pool?

When process adds new genes to a gene pool?
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The sum of genes in a population is called – (1) Phenotype (2) Karyotype (3) Genotype (4) Gene pool

Description : The sum of genes in a population is called – (1) Phenotype (2) Karyotype (3) Genotype (4) Gene pool

Last Answer : (4) Gene pool Explanation: Phenotype refers to a set of observable characteristics of an individual or group resulting from the interaction of its genotype with its environment. Gene pool refers to the stock of different genes in an interbreeding population.

The sum of genes in a population is called (1) Phenotype (2) Karyotype (3) Genotype (4) Gene pool

Description : The sum of genes in a population is called (1) Phenotype (2) Karyotype (3) Genotype (4) Gene pool

Last Answer : Gene pool

When immigration adds to the size of the domestic labor pool which of following is likely to occur?

Description : When immigration adds to the size of the domestic labor pool which of following is likely to occur?

Last Answer : Wages are likely to decrease.

Consider the following methods by which gene therapy can be performed: 1. By introducing a new gene into the body 2. By the use of stem cells 3. By delivery of genes using gold nanoparticles The correct methods could be: (a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3 only

Description : Consider the following methods by which gene therapy can be performed: 1. By introducing a new gene into the body 2. By the use of stem cells 3. By delivery of genes using gold nanoparticles The correct methods could be: (a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3 only

Last Answer : Ans:(a)

Two non-allelic genes produces the new phenotype w(a) epistasis (b) polygene (c) non complementary gene (d) complementary gene.hen present together but fail to do so independently then it is called

Description : Two non-allelic genes produces the new phenotype when present together but fail to do so independently then it is called (a) epistasis (b) polygene (c) non complementary gene (d) complementary gene.

Last Answer : epistasis

What must occur within a gene pool before the formation of new species?

Description : What must occur within a gene pool before the formation of new species?

Last Answer : Answer: Reproductive Isolation

If your child had a ”gay gene”, or a sequence of genes leading to gayness, would you leave it unaltered if there was a way to eliminate, or modify it?

Description : If your child had a ”gay gene”, or a sequence of genes leading to gayness, would you leave it unaltered if there was a way to eliminate, or modify it?

Last Answer : I am not perfect and neither are my kids and I would not change a thing.

If 98% of human genes are from the Rhesus monkey gene where do you think the other 2% fit in?

Description : If 98% of human genes are from the Rhesus monkey gene where do you think the other 2% fit in?

Last Answer : answer:The chimpanzee and human genome diverged 6 million years ago. They have 98% identity and many conserved regulatory regions. Humans and macaques apparently share about 93% of their DNA sequence and shared a common ancestor roughly 25 million years ago. [Source]

Gene gun can introduced genes into cells with the help of

Description : Gene gun can introduced genes into cells with the help of

Last Answer : Gene gun can introduced genes into cells with the help of A. Plasmids B. Cosmide C. Microscopic pellets D. Moringa

How many genes out of a gene pair does a plant that is self pollinated get from each of its parents?

Description : How many genes out of a gene pair does a plant that is self pollinated get from each of its parents?

Last Answer : one from each parent out of a gene pair. Because each parentscontributes fifty - fifty percent in the new offspring.

What is each gene is inherited separately of genes of other traits is?

Description : What is each gene is inherited separately of genes of other traits is?

Last Answer : Need answer

What is A situation in which genes are attached to an organisms sex chromosomes the sex of an organism influences the expression of a gene?

Description : What is A situation in which genes are attached to an organisms sex chromosomes the sex of an organism influences the expression of a gene?

Last Answer : s.e.x linked

Which of the following genes of the E.coli “Lac operon” codes for a constitutive protein? (A) The ‘a’ gene (B) The ‘i’ gene (C) The ‘c’ gene (D) The ‘z’ gene

Description : Which of the following genes of the E.coli “Lac operon” codes for a constitutive protein? (A) The ‘a’ gene (B) The ‘i’ gene (C) The ‘c’ gene (D) The ‘z’ gene

Last Answer : Answer : B

Mutations in promoter regions of genes can cause (A) Premature termination of translation (B) Change in reading frame of downstream structural gene (C) Decreased efficiency of transcription (D) All of these

Description : Mutations in promoter regions of genes can cause (A) Premature termination of translation (B) Change in reading frame of downstream structural gene (C) Decreased efficiency of transcription (D) All of these

Last Answer : Answer : C

The coding sequences in lac operon include (A) i gene (B) i gene, operator locus and promoter (C) z, y and a genes (D) i, z, y and a genes

Description : The coding sequences in lac operon include (A) i gene (B) i gene, operator locus and promoter (C) z, y and a genes (D) i, z, y and a genes

Last Answer : Answer : D

The enzymes encoded by z, y and a genes of lac operon are inducible, and their inducer is (A) Lactose (B) Allo-lactose (C) Catabolite gene activator protein (D) All of these

Description : The enzymes encoded by z, y and a genes of lac operon are inducible, and their inducer is (A) Lactose (B) Allo-lactose (C) Catabolite gene activator protein (D) All of these

Last Answer : Answer : B

Transcription of structural genes of lac operon is prevented by binding of the repressor tetramer to (A) i gene (B) Operator locus (C) Promoter (D) z gene

Description : Transcription of structural genes of lac operon is prevented by binding of the repressor tetramer to (A) i gene (B) Operator locus (C) Promoter (D) z gene

Last Answer : Answer : B

The regulatory i gene of lac operon (A) Is inhibited by lacotse (B) Is inhibited by its own product, the repressor protein (C) Forms a regulatory protein which increases the expression of downstream structural genes (D) Is constitutively expressed

Description : The regulatory i gene of lac operon (A) Is inhibited by lacotse (B) Is inhibited by its own product, the repressor protein (C) Forms a regulatory protein which increases the expression of downstream structural genes (D) Is constitutively expressed

Last Answer : Answer : D

Lac operon is a cluster of (A) Three structural genes (B) Three structural genes and their promoter (C) A regulatory gene, an operator and a promoter (D) A regulatory gene, an operator, a promoter and three structural genes

Description : Lac operon is a cluster of (A) Three structural genes (B) Three structural genes and their promoter (C) A regulatory gene, an operator and a promoter (D) A regulatory gene, an operator, a promoter and three structural genes

Last Answer : Answer : D

Constant segment genes of heavy chains are present in a cluster in which the first gene on side is (A) Alpha (B) Gamma (C) Delta (D) None of these

Description : Constant segment genes of heavy chains are present in a cluster in which the first gene on side is (A) Alpha (B) Gamma (C) Delta (D) None of these

Last Answer : Answer : D

That genes control heredity through their control on enzyme synthesis and that one gene controls the sythesis of one enzyme - the one gene one enzyme hypothesis — was proposed by (a) Beadle and Tatum (b) Darwin (c) Mendel (d) Morgan

Description : That genes control heredity through their control on enzyme synthesis and that one gene controls the sythesis of one enzyme - the one gene one enzyme hypothesis — was proposed by (a) Beadle and Tatum (b) Darwin (c) Mendel (d) Morgan

Last Answer : Ans:(a)

Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein (a) binds with epithelial cells of midgut of the insect pest ultimately killing it (b) is coded by several genes including the gene cry (c) is activated by acid pH of the foregut of the insect pest (d) does not kill the carrier bacterium which is itself resistant to this toxin.

Description : Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein (a) binds with epithelial cells of midgut of the insect pest ultimately killing it (b) is coded by several ... pest (d) does not kill the carrier bacterium which is itself resistant to this toxin.

Last Answer : (a) binds with epithelial cells of midgut of the insect pest ultimately killing it

A collection of plants and seed having diverse alleles of all the genes of a crop is called (a) herbarium (b) germplasm (c) gene library (d) genome.

Description : A collection of plants and seed having diverse alleles of all the genes of a crop is called (a) herbarium (b) germplasm (c) gene library (d) genome.

Last Answer : (b) germplasm

Select the incorrect statement. (a) Inbreeding helps in accumulation of superior genes and elimination of undesirable genes. (b) Inbreeding increases homozygosity. (c) Inbreeding is essential to evolve purelines, in any animal. (d) Inbreeding selects harmful recessive gene that reduce fertility and productivity.

Description : Select the incorrect statement. (a) Inbreeding helps in accumulation of superior genes and elimination of undesirable genes. (b) Inbreeding increases homozygosity. (c) Inbreeding is essential to ... any animal. (d) Inbreeding selects harmful recessive gene that reduce fertility and productivity.

Last Answer : (d) Inbreeding selects harmful recessive gene that reduce fertility and productivity.

Match the following genes of the Lac operon with their respective products. (A) i gene (i) b-galactosidase (B) z gene (ii) Permease (C) a gene (iii)Repressor (D) y gene (iv) Transacetylase Select the correct option. (A) (B) (C) (D) (a) (iii) (iv) (i) (ii) (b) (i) (iii) (ii) (iv) (c) (iii) (i) (ii) (iv) (d) (iii) (i) (iv) (ii)

Description : Match the following genes of the Lac operon with their respective products. (A) i gene (i) b-galactosidase (B) z gene (ii) Permease (C) a gene (iii)Repressor (D) y gene (iv) Transacetylase Select the correct option. (A) (B) (C) ( ... ) (iii) (ii) (iv) (c) (iii) (i) (ii) (iv) (d) (iii) (i) (iv) (ii)

Last Answer : (a) (iii) (iv) (i) (ii)

Gene and cistron words are sometimes used synonymously because (a) one cistron contains many genes (b) one gene contains many cistrons (c) one gene contains one cistron (d) one gene contains no cistron

Description : Gene and cistron words are sometimes used synonymously because (a) one cistron contains many genes (b) one gene contains many cistrons (c) one gene contains one cistron (d) one gene contains no cistron

Last Answer : (b) one gene contains many cistrons

.The lac operon consists of (a) four regulatory genes only (b) one regulatory gene and three structural genes (c) two regulatory genes and two structural genes (d) three regulatory genes and three structural genes.

Description : .The lac operon consists of (a) four regulatory genes only (b) one regulatory gene and three structural genes (c) two regulatory genes and two structural genes (d) three regulatory genes and three structural genes.

Last Answer : (b) one regulatory gene and three structural genes

Match the following genes of the Lac operon with their respective products. (A) i gene (i) b-galactosidase (B) z gene (ii) Permease (C) a gene (iii)Repressor (D) y gene (iv) Transacetylase Select the correct option. (A) (B) (C) (D) (a) (iii) (iv) (i) (ii) (b) (i) (iii) (ii) (iv) (c) (iii) (i) (ii) (iv) (d) (iii) (i) (iv) (ii)

Description : Match the following genes of the Lac operon with their respective products. (A) i gene (i) b-galactosidase (B) z gene (ii) Permease (C) a gene (iii)Repressor (D) y gene (iv) Transacetylase Select the correct option. (A) (B) (C) ( ... ) (iii) (ii) (iv) (c) (iii) (i) (ii) (iv) (d) (iii) (i) (iv) (ii)

Last Answer : d) (iii) (i) (iv) (ii)

In the regulation of genes: a. more than 90% of the base sequences in human DNA have not known function b. extrons are the part of the gene that code for amino acids found in the final proteins. c. introns usually begins with the nucleotide sequence GT d. all above

Description : In the regulation of genes: a. more than 90% of the base sequences in human DNA have not known function b. extrons are the part of the gene that code for amino acids found in the final proteins. c. introns usually begins with the nucleotide sequence GT d. all above

Last Answer : all above

Gene and cistron words are sometimes used synonymously because (a) one cistron contains many genes (b) one gene contains many cistrons (c) one gene contains one cistron (d) one gene contains no cistron.

Description : Gene and cistron words are sometimes used synonymously because (a) one cistron contains many genes (b) one gene contains many cistrons (c) one gene contains one cistron (d) one gene contains no cistron.

Last Answer : c) one gene contains one cistron

Transfer of genes (gene flow) in between different species is known as (a) Vertical gene flow (b) Horizontal gene flow (c) Lateral gene flow (d) Side gene flow

Description : Transfer of genes (gene flow) in between different species is known as (a) Vertical gene flow (b) Horizontal gene flow (c) Lateral gene flow (d) Side gene flow

Last Answer : (b) Horizontal gene flow

A woman with two genes for haemophilia and one gene for colour blindness on one of the ‘X’ chromosomes marries a normal man. How will the progeny be? (a) 50% haemophilic colour-blind sons and 50% normal sons. (b) 50% haemophilic daughters (carrier) and 50% colour blind daughters (carrier). (c) All sons and daughters haemophilic and colour- blind. (d) Haemophilic and colour-blind daughters.

Description : A woman with two genes for haemophilia and one gene for colour blindness on one of the X' chromosomes marries a normal man. How will the progeny be? (a) 50% haemophilic colour-blind sons ... ). (c) All sons and daughters haemophilic and colour- blind. (d) Haemophilic and colour-blind daughters.

Last Answer : (b) 50% haemophilic daughters (carrier) and 50% colour blind daughters (carrier).

A male human is heterozygous for autosomal genes A and B and is also hemizygous for haemophilic gene h. What proportion of his sperms will be abh? (a) 1/8 (b) 1/32 (c) 1/16 (d) 1/4

Description : A male human is heterozygous for autosomal genes A and B and is also hemizygous for haemophilic gene h. What proportion of his sperms will be abh? (a) 1/8 (b) 1/32 (c) 1/16 (d) 1/4

Last Answer : (a) 1/8

.Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele expresses itself C. Pleiotropy (iii) In a heterozygous organism both alleles express themselves fully D. Polygenic (iv) A single gene inheritance influences many characters A B C D (a) (iv) (i) (ii) (iii) (b) (iv) (iii) (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

Description : .Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele ... (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

Last Answer : (d) (ii) (iii) (iv) (i)

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

Which of the following statements is not true of two genes that show 50% recombination frequency? (a) The gene show independent assortment. (b) If the genes are present on the same chromo- some, they undergo more than one cross-overs in every meiosis. (c) The genes may be on different chromosomes. (d) The genes are tightly linked.

Description : Which of the following statements is not true of two genes that show 50% recombination frequency? (a) The gene show independent assortment. (b) If the genes are present on the same chromo- some, they ... every meiosis. (c) The genes may be on different chromosomes. (d) The genes are tightly linked.

Last Answer : (b) If the genes are present on the same chromo- some, they undergo more than one cross-overs in every meiosis.

In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates (a) the two genes are linked and present on the same chromosome (b) both of the characters are controlled by more than one gene (c) the two genes are located on two different chromosomes (d) chromosomes failed to separate during meiosis.

Description : In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates (a) the two genes are linked and present on the ... two genes are located on two different chromosomes (d) chromosomes failed to separate during meiosis.

Last Answer : (a) the two genes are linked and present on the same chromosome

The frequency of recombination between gene present on the same chromosome as a measure of the distance between genes was explained by (a) Sutton Boveri (b) T.H. Morgan (c) Gregor J.Mendel (d) Alfred Sturtevant.

Description : The frequency of recombination between gene present on the same chromosome as a measure of the distance between genes was explained by (a) Sutton Boveri (b) T.H. Morgan (c) Gregor J.Mendel (d) Alfred Sturtevant.

Last Answer : (d) Alfred Sturtevant.

Genomic islands are a. Gene Sequences Not Part Of The Chromosomal Genes. b. Adjacent Gene Sequences Unique To One Or A Few Strains In A Species. c. Acquired By HGT. d. Both B And C Are Correct.

Description : Genomic islands are a. Gene Sequences Not Part Of The Chromosomal Genes. b. Adjacent Gene Sequences Unique To One Or A Few Strains In A Species. c. Acquired By HGT. d. Both B And C Are Correct.

Last Answer : d. Both B And C Are Correct.

Transposons are of particular significance because they a. often contain genes for antibiotic resistance. b. inhibit the effects of overlapping genes. c. come in pairs and often are associated with viruses. d. regulate gene transcription in bacterial cells.

Description : Transposons are of particular significance because they a. often contain genes for antibiotic resistance. b. inhibit the effects of overlapping genes. c. come in pairs and often are associated with viruses. d. regulate gene transcription in bacterial cells.

Last Answer : a. often contain genes for antibiotic resistance.

Which one of the following is NOT part of an operon? a. Regulatory gene b. Operator c. Promoter d. Structural genes

Description : Which one of the following is NOT part of an operon? a. Regulatory gene b. Operator c. Promoter d. Structural genes

Last Answer : d. Structural genes

A microarray differs from a gene fusion in that, it A- carries DNA segments from many different genes B- is not constructed by cloning C- gives direct measurement of mRNA level D- all of the above

Description : A microarray differs from a gene fusion in that, it A- carries DNA segments from many different genes B- is not constructed by cloning C- gives direct measurement of mRNA level D- all of the above

Last Answer : all of the above

Read the statements given below and identify the incorrect statement. a) The human genome contains 3164.7 million nucleotide bases. b) The average gene consists of 30,000 bp c) The total number of genes is estimated at 30,000. d) Chromosome Y has 231 genes e) Less than 2% of the genome codes for proteins.

Description : Read the statements given below and identify the incorrect statement. a) The human genome contains 3164.7 million nucleotide bases. b) The average gene consists of 30,000 bp c) The total number of genes is ... . d) Chromosome Y has 231 genes e) Less than 2% of the genome codes for proteins.

Last Answer : d) Chromosome Y has 231 genes

Situations in which one allele for a gene is not completely dominant over another allele for that gene are called a. multiple alleles. b. incomplete dominance. c. polygenic inheritance. d. multiple genes.

Description : Situations in which one allele for a gene is not completely dominant over another allele for that gene are called a. multiple alleles. b. incomplete dominance. c. polygenic inheritance. d. multiple genes.

Last Answer : b. incomplete dominance.

The type of gene interaction in which the effects of one gene override or mask the effects of other entirely different genes is called: a) linkage b) mutation c) pleitropy (pron: ply-ah-tropy) d) epistasis (pron: eh-pis-te-sis)

Description : The type of gene interaction in which the effects of one gene override or mask the effects of other entirely different genes is called: a) linkage b) mutation c) pleitropy (pron: ply-ah-tropy) d) epistasis (pron: eh-pis-te-sis)

Last Answer : ANSWER: D -- EPISTASIS

Does group celibacy naturally eliminate the groups effect on the gene pool?

Description : Does group celibacy naturally eliminate the groups effect on the gene pool?

Last Answer : Seems like a more than reasonable assumption

Gene pool is :

Description : Gene pool is :

Last Answer : Gene pool is : A. Genotype of an individual of population B. Different gens of all individuals ... artificially synthesised genes D. Genes of a genus

Viable material of endangered species can be preserved by (a) gene bank (b) gene library (c) herbarium (d) gene pool.

Description : Viable material of endangered species can be preserved by (a) gene bank (b) gene library (c) herbarium (d) gene pool.

Last Answer : (a) gene bank

Which of the following terms refers to the collection of all alleles of every gene present in the members of a population? Is it: a) population expression b) gene pool c) genetic dictionary d) none of these

Description : Which of the following terms refers to the collection of all alleles of every gene present in the members of a population? Is it: a) population expression b) gene pool c) genetic dictionary d) none of these

Last Answer : ANSWER: B -- GENE POOL

____ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.

Description : ____ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.

Last Answer : UDP