UCF BSC 2010C Chapter 17 Exam Questions
And Answers
5' cap -
correct answer ✅The 5' end of a pre-mRNA molecule modified by
the addition of a cap of guanine nucleotide.
A site -
correct answer ✅One of a ribosome's three binding sites for tRNA
during translation. The A site holds the tRNA carrying the next
amino acid to be added to the polypeptide chain. (A stands for
aminoacyl tRNA.)
Anticodon -
correct answer ✅A specialized base triplet at one end of a tRNA
molecule that recognizes a particular complementary codon on an
mRNA molecule.
Base-pair substitution -
correct answer ✅A type of point mutation; the replacement of
one nucleotide and its partner in the complementary DNA strand
by another pair of nucleotides.
Codon -
correct answer ✅A three-nucleotide sequence of DNA or mRNA
, UCF BSC 2010C Chapter 17 Exam Questions
And Answers
that specifies a particular amino acid or termination signal; the
basic unit of the genetic code.
Deletion -
correct answer ✅A mutational loss of one or more nucleotide
pairs from a gene.
E site -
correct answer ✅One of a ribosome's three binding sites for tRNA
during translation. The E site is the place where discharged tRNAs
leave the ribosome. (E stands for exit.)
Exon -
correct answer ✅A coding region of a eukaryotic gene.
Frameshift mutation -
correct answer ✅A mutation occurring when the number of
nucleotides inserted or deleted is not a multiple of three, resulting
in the improper grouping of the following nucleotides into codons.
Insertion: A mutation involving the addition of one or more
nucleotide pairs to a gene.
And Answers
5' cap -
correct answer ✅The 5' end of a pre-mRNA molecule modified by
the addition of a cap of guanine nucleotide.
A site -
correct answer ✅One of a ribosome's three binding sites for tRNA
during translation. The A site holds the tRNA carrying the next
amino acid to be added to the polypeptide chain. (A stands for
aminoacyl tRNA.)
Anticodon -
correct answer ✅A specialized base triplet at one end of a tRNA
molecule that recognizes a particular complementary codon on an
mRNA molecule.
Base-pair substitution -
correct answer ✅A type of point mutation; the replacement of
one nucleotide and its partner in the complementary DNA strand
by another pair of nucleotides.
Codon -
correct answer ✅A three-nucleotide sequence of DNA or mRNA
, UCF BSC 2010C Chapter 17 Exam Questions
And Answers
that specifies a particular amino acid or termination signal; the
basic unit of the genetic code.
Deletion -
correct answer ✅A mutational loss of one or more nucleotide
pairs from a gene.
E site -
correct answer ✅One of a ribosome's three binding sites for tRNA
during translation. The E site is the place where discharged tRNAs
leave the ribosome. (E stands for exit.)
Exon -
correct answer ✅A coding region of a eukaryotic gene.
Frameshift mutation -
correct answer ✅A mutation occurring when the number of
nucleotides inserted or deleted is not a multiple of three, resulting
in the improper grouping of the following nucleotides into codons.
Insertion: A mutation involving the addition of one or more
nucleotide pairs to a gene.
