BIO130 - Molecular and Cell Biology (Contains questions
from reading quizzes 1-8, 2025 midterm, clicker questions
from lectures, and general notes from lectures) With
Complete Solutions
1 nucleotide Correct Answers Base excision repair targets
________.
1.5 Correct Answers Only ________% of the human genome
encodes protein
100 Correct Answers Fewer than ________ subunits are
involved in initiating eukaryotic transcription.
2 Correct Answers ________ meters of DNA per cell
2-3 Correct Answers How many mutational steps required to
get from a codon for proline to one for cysteine, min to max?
2' OH group Correct Answers ________ ________ of the ribose
sugar is not present in deoxyribose.
20 Correct Answers How many amino acids are there?
3 Correct Answers The human genome (3x10^9) is only
changed by about ________ nucleotides every time a cell
divides.
3, initiation codon Correct Answers Any given mRNA
sequence has ________ possible reading frames, and the correct
one is set by an ________ ________.
,3'OH Correct Answers A newly synthesized strand of DNA is
made by sequentially adding nucleotides to the ________ of the
growing chain.
5' to 3' Correct Answers A newly synthesized strand of DNA is
made in the ________ direction.
5' to 3' Correct Answers DNA synthesis proceeds n which
direction?
5' to 3' Correct Answers Primase proceeds in which direction?
5' to 3' Correct Answers Two types of helicases exist. The
predominant one moves in which direction?
50 Correct Answers ________% of the human genome is
repetitive DNA
A-site, polypeptide chain Correct Answers 1) An aminoacyl-
tRNA binds to the ________.
2) Peptidyl transferase catalyzes peptide bond formation
between the new amino acid and the ________ ________
3) tRNA translocates to the P site
4) tRNA leaves the P site, and the P site remains vacant
A-T rich Correct Answers The bacterial origins of replication
are typically ________ ________ which allows the DNA double
helix to be easily separated at these points.
, active transport Correct Answers The movement of an ion
against its electrochemical gradient is called ________
________.
adenosine Correct Answers In the pre-mRNA splicing reaction,
the first step is: ________ attacks the 5' splice sit
amino acid Correct Answers A characteristic to help ensure the
fidelity of the translation process is the ability of the ________
________ to sense the correct base-pairing between the mRNA
codon and tRNA anticodon nucleotides.
amino acid Correct Answers Characteristics that help to ensure
the fidelity of the translation process are the ability of the
aminoacyl-tRNA synthetase to recognize and attach the correct
________ ________ to the appropriate tRNA molecule.
amino acids Correct Answers Proteins are composed of
________ ________.
amino acids Correct Answers The same 20 ________ ________
are present in all organisms (bacteria, archaea, plants, and
animals)
amino acids Correct Answers These four major categories
describe ________ ________: basic, acidic, uncharged polar,
non-polar.
aminoacyl-tRNA Correct Answers Characteristics that help to
ensure the fidelity of the translation process are the binding of
EF-G and GTP to the incoming ________, which is used to
from reading quizzes 1-8, 2025 midterm, clicker questions
from lectures, and general notes from lectures) With
Complete Solutions
1 nucleotide Correct Answers Base excision repair targets
________.
1.5 Correct Answers Only ________% of the human genome
encodes protein
100 Correct Answers Fewer than ________ subunits are
involved in initiating eukaryotic transcription.
2 Correct Answers ________ meters of DNA per cell
2-3 Correct Answers How many mutational steps required to
get from a codon for proline to one for cysteine, min to max?
2' OH group Correct Answers ________ ________ of the ribose
sugar is not present in deoxyribose.
20 Correct Answers How many amino acids are there?
3 Correct Answers The human genome (3x10^9) is only
changed by about ________ nucleotides every time a cell
divides.
3, initiation codon Correct Answers Any given mRNA
sequence has ________ possible reading frames, and the correct
one is set by an ________ ________.
,3'OH Correct Answers A newly synthesized strand of DNA is
made by sequentially adding nucleotides to the ________ of the
growing chain.
5' to 3' Correct Answers A newly synthesized strand of DNA is
made in the ________ direction.
5' to 3' Correct Answers DNA synthesis proceeds n which
direction?
5' to 3' Correct Answers Primase proceeds in which direction?
5' to 3' Correct Answers Two types of helicases exist. The
predominant one moves in which direction?
50 Correct Answers ________% of the human genome is
repetitive DNA
A-site, polypeptide chain Correct Answers 1) An aminoacyl-
tRNA binds to the ________.
2) Peptidyl transferase catalyzes peptide bond formation
between the new amino acid and the ________ ________
3) tRNA translocates to the P site
4) tRNA leaves the P site, and the P site remains vacant
A-T rich Correct Answers The bacterial origins of replication
are typically ________ ________ which allows the DNA double
helix to be easily separated at these points.
, active transport Correct Answers The movement of an ion
against its electrochemical gradient is called ________
________.
adenosine Correct Answers In the pre-mRNA splicing reaction,
the first step is: ________ attacks the 5' splice sit
amino acid Correct Answers A characteristic to help ensure the
fidelity of the translation process is the ability of the ________
________ to sense the correct base-pairing between the mRNA
codon and tRNA anticodon nucleotides.
amino acid Correct Answers Characteristics that help to ensure
the fidelity of the translation process are the ability of the
aminoacyl-tRNA synthetase to recognize and attach the correct
________ ________ to the appropriate tRNA molecule.
amino acids Correct Answers Proteins are composed of
________ ________.
amino acids Correct Answers The same 20 ________ ________
are present in all organisms (bacteria, archaea, plants, and
animals)
amino acids Correct Answers These four major categories
describe ________ ________: basic, acidic, uncharged polar,
non-polar.
aminoacyl-tRNA Correct Answers Characteristics that help to
ensure the fidelity of the translation process are the binding of
EF-G and GTP to the incoming ________, which is used to
