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