A point mutation at which nucleotide position in a codon would be most likely to cause a missense mutation? Group of answer choices any nucleotide of the codon. first nucleotide of the codon only Either the first or second nucleotide of the codon. second nucleotide of the codon only third nucleotide of the codon only

A point mutation at which nucleotide position in a codon would be most likely to cause a missense mutation? Group of answer choices any nucleotide of the codon. first nucleotide of the codon only Either the first or second nucleotide of the codon. second nucleotide of the codon only third nucleotide of the codon only

Name: A point mutation at which nucleotide position in a codon would be most
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Description: A point mutation at which nucleotide position in a codon would be most likely to cause a missense mutation?Group of answer choicesany nucleotide of the codon.first nucleotide of the codon onlyEither the first or second nucleotide of the codon.second

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter9: Gene Expression And Gene Regulation

Section: Chapter Questions

Problem 8QP: The following segment of DNA codes for a protein. The uppercase letters represent exons. The...

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A mutation occurs within a gene sequence but no change is detected in the amino acid sequence. What is the most likely explanation? Mutation occurred in the exon which is spliced out Mutation occurred in the third nucleotide of a codon Mutation occurred in the second nucleotide of a codon Mutation occurred in the first nucleotide of a codon
A protein had the amino acids leu-gly at codons 10 and 11. A deletion of the 5’ base of the leu codon (i.e. the first base) changed the protein so that it now reads ser-ala at codons 10 and 11. The original Leu codon must have been: (hint: make use of a codon table to answer this question) CUG AUG CUA CUC CUU
What is a nonsense mutation? A change from a codon for one amino acid to a codon for another amino acid. A change in a degenerate codon position that doesn't change the meaning of the codon. A change from an amino acid codon to a stop codon. A change that adds or deletes a base from a codon. A change causing the protein to start in the wrong place.
Which statement is correct about amino acids and codons? Group of answer choices One codon specifies different amino acids. Several different codons can specify the same amino acid. Each amino acid is specified by only one codon. Some amino acids have no link to a codon
Which base pair in the codon-anticodon is a "wild card" resulting in 32 tRNAs rather than 61? depends on the protein being produced always the first base pair always the third base pair always the second base pair
Choose the option that goes with the blank. The parentheses after the blank are the choices. ____________ (Introns, Anticodons, Codons) are three nucleotide units of information in mRNA that often specify a particular amino acid. They correspond to complementary sets of three nucleotides on tRNA called ___________ (introns, anticodons, codons).
Which of the following mutations will most likely NOT change the polypeptide sequence encoded by the DNA? 1 insertion 1 base pair change of the third nucleotide of the codon 1 base pair change of the first nucleotide of the codon 1 base pair change of the second nucleotide of the codon
Which of the following describes a silent mutation that is undetectable in the final protein sequence? Group of answer choices A base change that codes for a chemically different amino acid A base change that results in a different codon for the same amino aci A base change that codes for a stop codon A base change that codes for a chemically similar amino acid
Which of the following types of mutation that changes the mRNA sequence after the codon that initiates translation is likely to have the most detrimental effect on the polypeptide product? Group of answer choices a substitution of the first nucleotide of a GGG codon a substitution of the third nucleotide in an ACC codon an insertion of a codon a deletion of two nucleotides a deletion of a codon
Which of the following amino acid changes could result from a mutation that changed a single base? For each change that could result from the alteration of a single base, determine which position of the codon (first, second, or third nucleotide) in the mRNA must be altered for the change to result. a. Leu → Gln b. Phe → Ser c. Phe → Ile d. Pro → Ala e. Asn → Lys f. Ile → Asn
Which of the following codons is not a termination codon for protein synthesis?a) UUUb) UAGc) UAAd) UGA
The _____ loop complementary base pairs with the ______ on the mRNA. Codon, Anticodon Anticodon, Codon