Biod 102 Exam 1 ACTUAL Updated Exam 2026
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Exam Questions (Actual Exam 2026-2027)
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What enzyme is responsible for converting a DNA strand into RNA? - ANSWERS-RNA
polymerase
Pre-mRNA may undergo what modifications? - ANSWERS-5' cap, poly-A tail, splicing
What is the role of tRNA in the cell? - ANSWERS-Transferee amino acids from cytosol
to the growing amino acid chain.
Which RNA molecules are responsible for transferring amino acids during translation? -
ANSWERS-tRNA
Why is the amino acid methionine (met) added at initiation of translation? - ANSWERS-
Because the start codon is AUG (the triplet code for methionine), which signals the start
of the coding region
Amino acids are added to the: - ANSWERS-C-terminus end
After a stop codon is encountered, the hydrolysis of what molecule aids in releasing the
new polypeptide chain? - ANSWERS-Water
, post-translational modifications are necessary to ensure ___ - ANSWERS-Unique
folding/appropriate structure shape
DNA replication - ANSWERS-Parent DNA molecule is changed from its double-helix
formation into two separate strands that serve as templates to synthesize two new
complementary strands of DNA.
Origin of replication (DNA replication) - ANSWERS-Short nucleotide sequence that
encodes for a start signal to initiate the process of DNA replication. Multiple origins of
replication along the helix.
Helicase - ANSWERS-An enzyme that untwists the double helix of DNA at the
replication forks.
replication fork - ANSWERS-Y-shaped area where the DNA strand begins to untwist
replication bubble - ANSWERS-Segment of a DNA molecule that is unwinding and
undergoing replication.
single strand binding proteins - ANSWERS-Act as wedges to keep parent strands
separated and stabilized.
What enzyme is responsible for relieving the stress associated with the twisting and
untwisting of a DNA strand during replication. - ANSWERS-Topoisomerase
As a replicated DNA strand elongates, what enzyme is responsible for adding
nucleotides? - ANSWERS-DNA polymerase
The energy required to add a nucleotide to a growing chain is supplied by an exergonic
reaction involving the hydrolysis of the nucleotide's pyrophosphate tail (T/F) -
ANSWERS-True
WITH Recent Newest Verified And Well Analyzed
Exam Questions (Actual Exam 2026-2027)
Correct Detailed & Verified ANSWERS (100%
Accurate Solutions) ALREADY GRADED
A+||NEWEST VERSION Of The Exam Guarantee
Pass!!
What enzyme is responsible for converting a DNA strand into RNA? - ANSWERS-RNA
polymerase
Pre-mRNA may undergo what modifications? - ANSWERS-5' cap, poly-A tail, splicing
What is the role of tRNA in the cell? - ANSWERS-Transferee amino acids from cytosol
to the growing amino acid chain.
Which RNA molecules are responsible for transferring amino acids during translation? -
ANSWERS-tRNA
Why is the amino acid methionine (met) added at initiation of translation? - ANSWERS-
Because the start codon is AUG (the triplet code for methionine), which signals the start
of the coding region
Amino acids are added to the: - ANSWERS-C-terminus end
After a stop codon is encountered, the hydrolysis of what molecule aids in releasing the
new polypeptide chain? - ANSWERS-Water
, post-translational modifications are necessary to ensure ___ - ANSWERS-Unique
folding/appropriate structure shape
DNA replication - ANSWERS-Parent DNA molecule is changed from its double-helix
formation into two separate strands that serve as templates to synthesize two new
complementary strands of DNA.
Origin of replication (DNA replication) - ANSWERS-Short nucleotide sequence that
encodes for a start signal to initiate the process of DNA replication. Multiple origins of
replication along the helix.
Helicase - ANSWERS-An enzyme that untwists the double helix of DNA at the
replication forks.
replication fork - ANSWERS-Y-shaped area where the DNA strand begins to untwist
replication bubble - ANSWERS-Segment of a DNA molecule that is unwinding and
undergoing replication.
single strand binding proteins - ANSWERS-Act as wedges to keep parent strands
separated and stabilized.
What enzyme is responsible for relieving the stress associated with the twisting and
untwisting of a DNA strand during replication. - ANSWERS-Topoisomerase
As a replicated DNA strand elongates, what enzyme is responsible for adding
nucleotides? - ANSWERS-DNA polymerase
The energy required to add a nucleotide to a growing chain is supplied by an exergonic
reaction involving the hydrolysis of the nucleotide's pyrophosphate tail (T/F) -
ANSWERS-True
