DNA Replication Review Question Preview (ID: 33299)


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This enzyme is responsible for piecing together Okazaki fragments.
a) helicase
b) primase
c) ligase
d) polymerase

This enzyme is responsible for breaking apart the DNA molecule's hydrogen bonds.
a) ligase
b) primase
c) polymerase
d) helicase

This enzyme adds RNA primers onto the lagging DNA strand.
a) primase
b) helicase
c) polymerase
d) ligase

The lagging strand is the
a) 5' to 3' strand
b) 3' to 5' strand
c) 3 to 5 strand
d) 5 to 3 strand

The 5' to 3' strand lags because
a) this strand is longer than the leading strand
b) this strand is protected by bulky ribosomes
c) DNA can only be synthesized in the 3' to 5' direction
d) DNA can only be synthesized in the 5' to 3' direction.

The 3' to 5' strand leads because
a) as it's copied, the resulting DNA strand is synthesized in the 3' to 5' direction
b) as it's copied, the resulting DNA strand is synthesized in the 5' to 3' direction
c) the resulting DNA strand requires no proof reading.
d) this strand is not blocked by bulky molecules.

A strand of DNA is copied and the resulting copy was synthesized discontinuously. This synthesized DNA was copied from
a) the lagging strand
b) the leading strand
c) the 3 to 5 strand
d) the 3' to 5' strand

DNA replication is semi-conservative because
a) the DNA molecule is copied using almost no ATP
b) each replicated DNA molecules contains two newly synthesized DNA strands
c) each replicated DNA molecule contains an original strand and a newly synthesized DNA strand
d) each strand of the DNA molecule is copied and the 2 copies come together to make an entirely new helix

An RNA primer is required by the ______ strand.
a) leading
b) lagging
c) 3' to 5'
d) chromosomal

DNA replication occurs during the ____ phase of the cell cycle
a) G1
b) G2
c) S
d) M

What does DNA do?
a) gives instructions for how to evolve
b) gives instructions for how to make proteins
c) nothing much
d) RNA does everything

Which molecule leaves the nucleus with the DNA's instructions?
a) enzymes
b) ribosomes
c) DNA 2
d) RNA

Molecules ending in -ase are known as
a) enzymes
b) lipids
c) nucleic acids
d) steroids

Proteins include
a) nucleotides
b) ATP
c) enzymes
d) glucose

A nucleotide consists of all of the following except
a) A phosphate group
b) A nitrogenous base
c) An amino acid
d) A sugar ring

Hydrogen bonds are useful for DNA molecules because
a) they are incredibly strong and do not allow the DNA molecule to be readily separated
b) they are fairly weak, allowing for the DNA molecule to be separated as needed
c) they are incredibly strong and allow the DNA molecule to be formed into chromosomes
d) they are fairly weak and allow the DNA molecule to be transported outside of the nucleus

In RNA, uracil replaces
a) adenine
b) thymine
c) guanine
d) cytosine

DNA gets replicated for all of the following reasons except
a) the cell needs to move DNA outside of the nucleus
b) the cell needs to prepare for mitosis
c) the cell needs to make more cells
d) daughter cells need one copy of the DNA each

During interphase, the cell's DNA is in _____ form
a) chromatid
b) chromosome
c) chromatin
d) RNA

All living organisms, from prokaryotes to eukaryotes, store their genetic information in the form of
a) DNA
b) organelles
c) proteins
d) membrane bound vesicles

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