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
Description : The first pyrimidine nucleotide to be formed in de novo synthesis pathway is (A) UMP (B) CMP (C) CTP (D) TMP
Last Answer : Answer : A
Description : Genetic code is (A) Collection of codon (B) Collection of amino acids (C) Collection of purine nucleotide (D) Collection of pyrimidine nucleotide
Description : An enzyme of pyrimidine nucleotide biosynthesis sensitive to allosteric regulation is (A) Aspartate transcarbamoylase (B) Dihydroorotase (C) Dihydroorotate dehydrogenase (D) Orotidylic acid decarboxylase
Description : A substrate for enzymes of pyrimidine nucleotide biosynthesis is (A) Allopurinol (B) Tetracylin (C) Chloramphenicol (D) Puromycin
Description : The pyrimidine nucleotide acting as the high energy intermediate is (A) ATP (B) UTP (C) UDPG (D) CMP
Last Answer : Answer : C
Description : A pyrimidine nucleotide is (A) GMP (B) AMP (C) CMP (D) IMP
Description : A nucleotide consists of (A) A nitrogenous base like choline (B) Purine + pyrimidine base + sugar + phosphorous (C) Purine or pyrimidine base + sugar (D) Purine or pyrimidine base + phosphorous
Last Answer : Answer : B
Description : A nucleotide is formed of (a) purine, pyrimidine and phosphate (b) purine, sugar and phosphate (c) nitrogen base, sugar and phosphate (d) pyrimidine, sugar and phosphate
Last Answer : (c) nitrogen base, sugar and phosphate
Description : Adenine is (a) purine (b) pyrimidine (c) nucleoside (d) nucleotide.
Last Answer : (a) purine
Description : Uridine, present only in RNA is a (a) nucleoside (b) nucleotide (c) purine (d) pyrimidine.
Last Answer : a) nucleoside
Description : Which one of the following binds to specific nucleotide sequences that are upstream and most distant from the start site? (A) RNA polymerase (B) Repressor (C) Inducer (D) Restriction
Description : Which one of the following binds to specific nucleotide sequences? (A) RNA polymerase (B) Repressor (C) Inducer (D) Restriction
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
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
Description : What information can be generated by interrupted mating experiments? A- Levels of DNA homology B- Bacterial genome maps C- DNA nucleotide sequences D- Proteomics of the bacteria
Last Answer : Bacterial genome maps
Description : Evolutionary relationships between groups of organisms are determined using which of Thefollowing type of information? A- Comparisons of nucleotide sequences B- .Comparisons of biochemical pathways C- Comparisons of structural features D- All of the above
Last Answer : All of the above
Description : List the pyrimidine bases of DNA. -Biology
Last Answer : answer:
Description : List the pyrimidine bases of RNA. -Biology
Description : Are pyrimidine nitrogenous bases?
Last Answer : Cytosine, thymine and uracil are the pyrimidines in animalusage.
Description : In DNA, genetic information is located in (A) Purine bases (B) Pyrimidine bases (C) Purine and pyrimidine bases (D) sugar
Description : The structural stability of the double helix of DNA is as cribbed largely to (A) Hydrogen bonding between adjacent purine bases (B) Hydrophobic bonding between staked purine and ... Hydrogen bonding between adjacent pyrimidine bases (E) Hydrogen bonding between purine and pyrimidine bases
Last Answer : Answer : D
Description : The following coenzyme is required for catabolism of pyrimidine bases: (A) NADH (B) NADPH (C) FADH2 (D) None of these
Description : The available PRPP is used preferentially for (A) De novo synthesis of purine nucleotides (B) De novo synthesis of pyrimidine nucleotides (C) Salvage of purine bases (D) Salvage of pyrimidine bases
Description : Intestinal nucleosidases act on nucleosides and produce (A) Purine base only (B) Phosphate only (C) Sugar only (D) Purine or pyrimidine bases and sugars
Description : Alkylating agents exert cytotoxic action by inducing: A. Breakage of DNA strand B. Cross linking of DNA strands C. Abnormal pairing of purine and pyrimidine bases D. All of the above
Last Answer : D. All of the above
Description : Which two of the following four bases in DNA are pyrimidine (pron: pie-rim-eh-den) bases? a) cytosine b) thymine c) adenine d) guanine (pron: gwa - neen)
Last Answer : ANSWER: A and B -- CYTOSINE and THYMINE
Description : What is complementary mRNA sequences for DNA bases A-T-C-A-G-G?
Last Answer : What is the answer ?
Description : True statements about the nucleic acid include: a. contains purine and pyrimidine which are bound together by covalent bonds b. there is always an equal concentration of purine and pyrimidine c. in RNA, ... d. introns is more common than exons on the DNA e. the histones mark the excision site
Last Answer : there is always an equal concentration of purine and pyrimidine
Description : Besides structural genes that encode proteins, DNA contains some regulatory sequences which are known as (A) Operons (B) Cistrons (C) Cis-acting elements (D) Trans-acting factors
Description : DNA contains some palindromic sequences which (A) Mark the site for the formation of replication forks (B) Direct DNA polymerase to turn back to replicate the other strand (C) Are recognized by restriction enzymes (D) Are found only in bacterial DNA
Description : Satellite DNA contains (A) Highly repetitive sequences (B) Moderately repetitive sequences (C) Non-repetitive sequences (D) DNA-RNA hybrids
Description : RNA transcription is more complex in eukaryotes because it is first made as a primary RNA transcript that contains intron and exon sequences. What kind of modification must occur to produce a mature mRNA?
Last Answer : RNA splicing. Introns must be removed and exons are spliced together to form a mature RNA transcript.
Description : Which one of the following contributes nitrogen atoms to both purine and pyrimidine rings? (A) Aspartate (B) Carbanoyl phosphate (C) Carbondioxide (D) Tetrahydrofolate
Description : De novo synthesis of pyrimidine nucleotides is regulated by (A) Carbamoyl phosphate synthetase (B) Aspartate transcarbamoylase (C) Both (A) and (B) (D) None of these
Description : 5-Phosphoribosyl-1-pyrophosphate is required for the synthesis of (A) Purine nucleotides (B) Pyrimidine nucleotides (C) Both (A) and (B) (D) None of these
Description : Which of the following contributes nitrogen atoms to both purine and pyrimidine rings? (A) Aspartate (B) Carbamoyl phosphate (C) CO2 (D) Glutamine
Description : Similarity in DNA and RNA is that (a) both are polymer of nucleotides (b) both have similar pyrimidine (c) both have similar sugar (d) both are genetic material.
Last Answer : (b) both have similar pyrimidine
Description : Pyrimidine uracil occurs only in a. RNA b. DNA c. Both d. None of them
Last Answer : RNA
Description : Pyrimidine thymine occurs only in a. RNA b. DNA c. Both d. All
Last Answer : DNA
Last Answer : both are polymer of nucleotides
Description : Which action sequences are used to achieve the agent’s goal? a) Search b) Plan c) Retrieve d) Both Search & Plan
Last Answer : d) Both Search & Plan
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.
Description : Which of the following statement is correct? A- The size and sequence of introns can be deduced from the cDNA sequence B- Restriction endonuclease can cleave ss and dsDNA both C- Restriction ... sequenceof a gene D- Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Last Answer : Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Description : Which of the following statement is correct? A- The size and sequence of introns can be deduced from the cDNA sequence B- .Restriction endonuclease can cleave ss and dsDNA both C- Restriction ... of a Gene D- Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Description : Difference between purine and pyrimidine. -Biology
Description : What is Pyrimidine ?
Last Answer : : Pyrimidine is a ring-based or single-ringed alkali according to benzene. Its common signal is C 4 H 4 N 2 . Nucleic acids contain three types of pyrimidine bases. Namely , thymine , cytosine and uracil .
Description : How many types of pyrimidine ?
Last Answer : 2 types of pyrimidine
Description : $ ATP is a type of coenzyme. ! Adenine is a type of pyrimidine.
Last Answer : $ ATP is a type of coenzyme. ! Adenine is a type of pyrimidine. A. If both As and R are correct and R ... , R is wrong D. If both As and R are wrong.