Question 1

Which term best describes the physical location of a gene on a chromosome?

Accepted Answer

Gene locus

Question 2

During DNA replication, which enzyme is responsible for unwinding the double helix?

Accepted Answer

Helicase

Question 3

What is the role of the 3' hydroxyl group in DNA replication?

Accepted Answer

It serves as the attachment point for new nucleotides.

Question 4

Which of the following best explains why dogs have different coat colors?

Accepted Answer

Different alleles at gene loci in the genome code for various pigments.

Question 5

Which process is most similar to DNA replication in terms of copying DNA, but is performed in vitro?

Accepted Answer

Polymerase Chain Reaction (PCR)

Question 6

What is the monomer used in DNA replication?

Accepted Answer

Nucleoside triphosphates

Question 7

Which of the following statements about DNA replication is correct?

Accepted Answer

DNA replication only occurs when a cell needs to divide.

Question 8

What is the function of single-stranded binding proteins during DNA replication?

Accepted Answer

They prevent separated DNA strands from re-annealing.

Question 9

Which step in DNA replication directly follows strand separation?

Accepted Answer

Extension or elongation of the new DNA strand

Question 10

What is the significance of the 'origin of replication' in DNA replication?

Accepted Answer

It is the specific sequence where DNA replication starts.

Question 11

Which of the following best describes the energy source for DNA polymerization?

Accepted Answer

Hydrolysis of nucleoside triphosphates

Question 12

Which chemical bond holds the two strands of DNA together?

Accepted Answer

Hydrogen bonds

Question 13

What determines whether a nucleotide is part of DNA or RNA?

Accepted Answer

The sugar component

Question 14

Which enzyme synthesizes the new DNA strand during replication?

Accepted Answer

DNA polymerase

Question 15

In a condensation reaction during DNA replication, what is released as a byproduct?

Accepted Answer

Water ($H_2O$)

Question 16

Which of the following is true about the genome?

Accepted Answer

It refers to all the chromosomes in an organism.

Question 17

Why is DNA replication considered an exergonic process?

Accepted Answer

Because energy is released from the hydrolysis of nucleoside triphosphates.

Question 18

Which of the following is NOT a function of DNA polymerase?

Accepted Answer

Unwinding the DNA helix

Question 19

What is the relationship between the major and minor grooves of DNA and protein interaction?

Accepted Answer

Proteins interact with DNA by recognizing specific patterns in the major and minor grooves.

Question 20

Which of the following best describes the role of template DNA in replication?

Accepted Answer

It provides the sequence for the synthesis of a complementary strand.

DNA Structure, Replication, and Genetic Terminology: Study Notes for College Biology and Biochemistry

Study Guide - Practice Questions