BIMM 100 Midterm questions n
answers rated A+
The leading and lagging strands differ in that - correct answer ✔✔ the leading strand is
synthesized in the same direction as the movement of the replication fork, and the lagging
strand is synthesized in the opposite direction.
What is the role of DNA ligase in the elongation of lagging strand during DNA replication? -
correct answer ✔✔ It joins Okazaki fragments together.
What technique did Rosalind Franklin use to determine the double-helix structure of DNA? -
correct answer ✔✔ X-ray crystallography
One of the primary functions of RNA molecules is to - correct answer ✔✔ function in the
synthesis of proteins.
Which of the following help(s) to hold the DNA strands apart while they are being replicated? -
correct answer ✔✔ single-strand binding proteins
Which of the following descriptions best fits the class of molecules known as nucleotides? -
correct answer ✔✔ a nitrogenous base, a phosphate group, and a pentose sugar
In trying to determine whether DNA or protein is the genetic material, Hershey and Chase made
use of which of the following facts? - correct answer ✔✔ DNA contains phosphorus, whereas
protein does not.
What is the primary function for telomeres? - correct answer ✔✔ Protects the ends of
chromosomes from deterioration from DNA replication
, What is the function of topoisomerase? - correct answer ✔✔ relieving strain in the DNA ahead
of the replication fork
An Okazaki fragment has which of the following arrangements? - correct answer ✔✔ 5' RNA
nucleotides, DNA nucleotides 3'
What does telomerase elongate? - correct answer ✔✔ Parental lagging strand
What enzyme catalyzes the elongation of a DNA strand in the 5' to 3' direction? - correct answer
✔✔ DNA Polymerase III
The immediate product of transcription is - correct answer ✔✔ RNA
What is the cheapest price of genomic sequencing as provided today by Illumina technology? -
correct answer ✔✔ $1,000
What is meant by the description "antiparallel" regarding the strands that make up DNA? -
correct answer ✔✔ The 5' to 3' direction of one strand runs counter to the 5' to 3' direction of
the other strand.
You find a new alien bacteria that surprisingly uses DNA as its genetic material but you want to
figure out which model of replication is uses. You culture is int he presence of 15N and then
14N. DNA was isolated after one cycle of replication and after two cycles of replication, and then
spun down. You find that the DNA after one cycle of replication was half heavy, and half light.
After two cycles, the DNA was 1/4 heavy and 3/4 light. What is the model of replication? -
correct answer ✔✔ conservative
Watson and Crick discovered: - correct answer ✔✔ the structure of DNA.
answers rated A+
The leading and lagging strands differ in that - correct answer ✔✔ the leading strand is
synthesized in the same direction as the movement of the replication fork, and the lagging
strand is synthesized in the opposite direction.
What is the role of DNA ligase in the elongation of lagging strand during DNA replication? -
correct answer ✔✔ It joins Okazaki fragments together.
What technique did Rosalind Franklin use to determine the double-helix structure of DNA? -
correct answer ✔✔ X-ray crystallography
One of the primary functions of RNA molecules is to - correct answer ✔✔ function in the
synthesis of proteins.
Which of the following help(s) to hold the DNA strands apart while they are being replicated? -
correct answer ✔✔ single-strand binding proteins
Which of the following descriptions best fits the class of molecules known as nucleotides? -
correct answer ✔✔ a nitrogenous base, a phosphate group, and a pentose sugar
In trying to determine whether DNA or protein is the genetic material, Hershey and Chase made
use of which of the following facts? - correct answer ✔✔ DNA contains phosphorus, whereas
protein does not.
What is the primary function for telomeres? - correct answer ✔✔ Protects the ends of
chromosomes from deterioration from DNA replication
, What is the function of topoisomerase? - correct answer ✔✔ relieving strain in the DNA ahead
of the replication fork
An Okazaki fragment has which of the following arrangements? - correct answer ✔✔ 5' RNA
nucleotides, DNA nucleotides 3'
What does telomerase elongate? - correct answer ✔✔ Parental lagging strand
What enzyme catalyzes the elongation of a DNA strand in the 5' to 3' direction? - correct answer
✔✔ DNA Polymerase III
The immediate product of transcription is - correct answer ✔✔ RNA
What is the cheapest price of genomic sequencing as provided today by Illumina technology? -
correct answer ✔✔ $1,000
What is meant by the description "antiparallel" regarding the strands that make up DNA? -
correct answer ✔✔ The 5' to 3' direction of one strand runs counter to the 5' to 3' direction of
the other strand.
You find a new alien bacteria that surprisingly uses DNA as its genetic material but you want to
figure out which model of replication is uses. You culture is int he presence of 15N and then
14N. DNA was isolated after one cycle of replication and after two cycles of replication, and then
spun down. You find that the DNA after one cycle of replication was half heavy, and half light.
After two cycles, the DNA was 1/4 heavy and 3/4 light. What is the model of replication? -
correct answer ✔✔ conservative
Watson and Crick discovered: - correct answer ✔✔ the structure of DNA.
