Description : If the codon UAC on mRNA changes into UAG as a result of a base substitution in DNA, it will result in (A) Silent mutation (B) Acceptable mis-sense mutation (C) Nonsense mutation (D) Frameshift mutation
Last Answer : Answer : C
Description : A silent mutation is most likely to result from (A) Substitution of the first base of a codon (B) Substitution of the third base of a codon (C) Conversion of a nonsense codon into a sense codon (D) Conversion of a sense codon into a nonsense codon
Last Answer : Answer : B
Description : Put the following structures in order from smallest to biggest, Chromosome, Genome, Nucleotide Base, Codon, Gene, Cell Nucleus?
Last Answer : The order is nitrogenous base, nucleotide, codon, gene, chromosome, nucleus, and cell. :)
Description : All the following statements about recognition of a codon on mRNA by an anticodon on tRNA are correct except (A) The recognition of the third base of the codon is not very precise (B) ... degeneracy of the genetic code (D) Wobble results in incorporation of incorrect amino acids in the protein
Last Answer : Answer : D
Description : Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it? 5′ _____ GAATTC _____ 3′ 3′ _____ CTTAAG _____ 5′ (a) ... completed (b) Deletion mutation (c) Start codon at the 5′ end (d) Palindromic sequence of base pairs
Last Answer : (d) Palindromic sequence of base pairs
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
Description : Substitution of a base can result in a (A) Silent mutation (B) Mis-sense mutation (C) Nonsense mutation(D) All of these
Description : A point mutation results from (A) Substitution of a base (B) Insertion of a base (C) Deletion of a base (D) All of these
Last Answer : Answer : A
Description : Substitution of a thymine base by adenine in DNA is known as ((A) Transposition (B) Transition (C) Transversion (D) Frameshift mutation
Description : Substitution of an adenine base by guanine in DNA is known as (A) Transposition (B) Transition (C) Transversion (D) Frameshift mutation
Description : . Sickle-cell anaemia is (a) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin (b) caused by a change in a single base pair of DNA (c) characterized by elongated sickle like RBCs with a nucleus (d) an autosomal linked dominant trait.
Last Answer : (b) caused by a change in a single base pair of DNA
Description : What purpose does FeCl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? (a) It serves as a radical initiator to produce the chlorine radical needed to propagate the ... by reacting with the Cl2 and thereby activates it toward attack by benzene's π electrons.
Last Answer : It serves as a Lewis acid catalyst by reacting with the Cl2 and thereby activates it toward attack by benzene’s π electrons.
Description : Which one of the following could NOT cause a change in the mRNA ―reading frame‖? a. Insertion Sequence b. Base-Pair Substitution c. Base Addition d. Base Deletion
Last Answer : b. Base-Pair Substitution
Description : Aryl halides are less reactive towards nucleophilic substitution as compared to alkyl halides due to (a) Inductive effect (b) Resonance stabilization (c) Tautomerism (d) Stereoisomerism
Last Answer : Resonance stabilization
Description : In the case of an inferior good, the income effect A.Partially offsets the substitution effect B.Is equal to the substitution effect C.Reinforces the substitution effect D.More than offsets the substitution effect
Last Answer : A.Partially offsets the substitution effect
Description : In an alkyl halide substitution of hydrogen by deuterium results in slow formation of ion pair. This is known as? a. Ortho effect b. Mesomeric effect c. Secondary kinetic isotope effect d. Primary kinetic isotope effect
Last Answer : c. Secondary kinetic isotope effect
Description : Assume Samantha likes hot dogs and hamburgers equally, and the price of hamburgers (a normal good) declines. She will most likely purchase more hamburgers; this is (a) a reflection of the income ... substitution effect; (c) a reflection of the income and substitution effects ; (d) None of above
Last Answer : (b) a reflection the substitution effect;
Description : An imposition of excise duty would effect the demand of a product due to ………….. (a) Income effect ; (b) Substitution effect ; (c) Both ; (d) None
Last Answer : (c) Both ;
Description : According to Modern approach, law of demand is caused by (a) Income effect ; (b) Substitution effect ; (c) Both ; (d) None
Description : Decreases in price of a product results in increased consumption of the product as the product becomes cheaper compared to other products. This effect is known as (a) Substitution effect ; (b) Income effect ; (c) Diminishing marginal utility concept; (b) Law of diminishing returns
Last Answer : (a) Substitution effect ;
Description : Increase in price of a product reduces the purchasing power as a result of which demand for a product goes up. This effect is known as (a) Substitution effect ; (b) Income effect ; (c) Diminishing marginal utility concept (d)Law of diminishing returns
Last Answer : ; (b) Income effect ;
Description : What is the difference between a codon and an anticodon?
Last Answer : A: A codon is a sequence of three nucleotides in mRNA that codes for a specific amino acid, while an anticodon is a sequence of three nucleotides in tRNA that binds to a specific codon and brings the corresponding amino acid to the ribosome during protein synthesis.
Last Answer : A: A codon is a sequence of three nucleotides that specifies a particular amino acid in a protein, while an anticodon is a sequence of three nucleotides on a tRNA molecule that is complementary to a codon on the mRNA molecule.
Last Answer : A: A codon is a sequence of three nucleotides on mRNA that codes for a specific amino acid, while an anticodon is a sequence of three nucleotides on tRNA that is complementary to the codon on mRNA.
Description : What is the difference between a codon and an anti-codon? -Biology
Last Answer : answer:
Description : Where is the anti-codon located? -Biology
Description : Where is the tRNA anti-codon located? -Biology
Description : Why is anti-codon important? -Biology
Description : Why does tRNA have an anti-codon? -Biology
Description : Why is an anti-codon important for protein synthesis? -Biology
Description : How many bases are in an anti-codon? -Biology
Description : Difference between termination signal and stop codon. -Biology
Description : What is a codon and anticodon? -Biology
Description : What is the start codon? -Biology
Description : Where is a codon found? -Biology
Description : Where is the start codon located? -Biology
Description : What is a codon and what does it represent? -Biology
Description : Is AUG a start codon? -Biology
Description : What does each codon code for? -Biology
Description : Why is the start codon necessary? -Biology
Description : Which anticodon pairs with the codon gau? -Biology
Description : Is mRNA a codon or anticodon? -Biology
Description : Where is the stop codon located? -Biology