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BIOCHEM 210 MODULE 6 –
PORTAGE LEARNING |
QUESTIONS AND CORRECT
ANSWERS | LATEST UPDATE |
100% PASS
Question : In DNA, adenine always pairs with
CORRECT ANSWER : thymine
Question : In RNA, cytosine always pairs with
CORRECT ANSWER : guanine
Question : In RNA, adenine always pairs with
CORRECT ANSWER : uracil
Question : DNA is built from which of the following?
nucleosides genes purines
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nucleotides codons
CORRECT ANSWER : nucleotides
Question : The double helix of DNA is stabilized mainly
by
CORRECT ANSWER : hydrogen bonds
Question : What pentose sugar is a constituent of DNA?
CORRECT ANSWER : 2-deoxyribose
Question : What pentose sugar is a constituent of RNA?
CORRECT ANSWER : ribose
Question : Pyrimidines have ________ ring(s), containing
______ nitrogen(s).
CORRECT ANSWER : 1 ring, 2 nitrogens
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Question : Purines have ________ ring(s), (each)
containing ______ nitrogen(s).
CORRECT ANSWER : 2 rings, 2 nitrogens
Question : What nucleic acid is responsible for using the
encoded genetic information to produce of proteins found in living organisms?
CORRECT ANSWER : ribonucleic acid (RNA)
Question : What are the complementary bases?
CORRECT ANSWER : A-T/U
C-G
Question : How many hydrogen bonds are made between
guanine and its complementary nucleotide?
CORRECT ANSWER : 3 hydrogen bonds are made
between G and C
Question : How many hydrogen bonds are made between
adenine and its complementary nucleotide?
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CORRECT ANSWER : 2 hydrogen bonds are made
between adenine and thymine/uracil
Question : What is the complementary strand of DNA for
the base sequence of DNA 5'-GCATGAGCC-3'?
CORRECT ANSWER : 3'-CGTACTCGG-5'
Question : What is the complementary strand of RNA for
the base sequence of RNA 5'-GCATGAGCC-3'?
CORRECT ANSWER : 3'-CGUAGUCGG-5'
Question : Which type of RNA functions to carry genetic
information from the DNA to ribosome?
CORRECT ANSWER : mRNA
Question : What is the set of three sequential nucleotides
that encodes for a particular amino acid?