BIOCHEM MODULE 6 EXAM QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

BIOCHEM MODULE 6 EXAM
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
thymine - ANSWER In DNA, adenine always pairs with



guanine - ANSWER In RNA, cytosine always pairs with



uracil - ANSWER In RNA, adenine always pairs with



nucleotides - ANSWER DNA is built from which of the following?



nucleosides

genes

purines

nucleotides

codons



hydrogen bonds - ANSWER The double helix of DNA is stabilized mainly by



2-deoxyribose - ANSWER What pentose sugar is a constituent of DNA?



ribose - ANSWER What pentose sugar is a constituent of RNA?



1 ring, 2 nitrogens - ANSWER Pyrimidines have ________ ring(s), containing ______ nitrogen(s).



2 rings, 2 nitrogens - ANSWER Purines have ________ ring(s), (each) containing ______ nitrogen(s).



ribonucleic acid (RNA) - ANSWER What nucleic acid is responsible for using the encoded genetic
information to produce of proteins found in living organisms?

, A-T/U

C-G - ANSWER What are the complementary bases?



3 hydrogen bonds are made between G and C - ANSWER How many hydrogen bonds are made between
guanine and its complementary nucleotide?



2 hydrogen bonds are made between adenine and thymine/uracil - ANSWER How many hydrogen bonds
are made between adenine and its complementary nucleotide?



3'-CGTACTCGG-5' - ANSWER What is the complementary strand of DNA for the base sequence of DNA 5'-
GCATGAGCC-3'?



3'-CGUAGUCGG-5' - ANSWER What is the complementary strand of RNA for the base sequence of RNA
5'-GCATGAGCC-3'?



mRNA - ANSWER Which type of RNA functions to carry genetic information from the DNA to ribosome?



codon - ANSWER What is the set of three sequential nucleotides that encodes for a particular amino
acid?



B-form and A-form - ANSWER What type(s) of DNA has a right-handed helix?



cAMP - ANSWER Which of the following is a second messenger in cells?



FAD

cAMP

AMP

dATP

UTP