Biology Final Review Part 1: Question Preview (ID: 31460)


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if there is 21.5% cytosine, how much guanine should be in the DNA
a) 21.5
b) 28.8
c) 19.1
d) 13.4

Which enzyme adds the new complimentary base during replication?
a) helicase
b) RNA polymerase
c) double helicase
d) histones

a DNA strand has CCG TTC, what would the compliment strand look like?
a) GGC AAG
b) AAT CCG
c) CCG TTC
d) AAG CCG

DNA is made of a sugar, a phosphate and a ...
a) nitrogen base
b) lipid
c) carbon
d) oxygen base

DNA is made of a sugar, a phosphate, and a...
a) nitrogen base
b) a bigger sugar
c) a carbon group
d) a lipid

Which protein helps to unwind DNA?
a) DNA polymerase
b) DNA activase
c) histones
d) chromotids

which phase of mitosis involves replication?
a) prophase
b) metaphase
c) anaphase
d) telophase

Meiosis is different than mitosis because...
a) meiosis happens in sex cells not body cells
b) mitosis happens in sex cells not body cells
c) mitosis happens in every cell in the human body
d) meiosis only ever happens once in a lifetime

a normal cell has 46 chromosomes, how many in the haploid cell?
a) 23
b) 92
c) 13
d) 21

meiosis results in _____ cells
a) 4
b) 3
c) 2
d) 1

meiosis results in ___________ cells
a) haploid
b) diploid
c) ployploid
d) muliploid

Chargaff's rule states that...
a) A pairs with T
b) C pairs with A
c) G pairs with T
d) C pairs with T

which includes the others?
a) chromosomes
b) DNA
c) genes
d) nucleotides

When does DNA replication occur?
a) during the S phase of the cell cycle
b) during the G 1 phase
c) during the G 2 phase
d) during mitosis

what is cytokinesis?
a) when the cytoplsm splits in two
b) when the DNA splits in two
c) when the cell membrane is repaired
d) when the plant cell wall grows

What is binary fission?
a) how prokayotic cells divide
b) how eukaryotic cells divide
c) how sex cells divide
d) how chromosomes divide

Which stage of mitosis invloves chromosomes lined up in the middle?
a) metaphase
b) interphase
c) anaphase
d) telophase

How do eukaryotic cells divide?
a) cell division
b) binary fission
c) mutations
d) duplication

what is the difference between a prokaryote and a eukaryote?
a) eukaryotes have a cell membrane, prokaryotes do not
b) prokaryotes have a cell membrane, eukaryotes do not
c) prokaryotes are more complex than eukaryotes
d) eukaryotes are smaller than prokaryotes

what happens during mitosis?
a) the nucleus of the cell divides
b) the cytoplasm divides
c) the DNA is copied
d) the DNA is replicated

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