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Biology Final Review Part 1
Test Description: This review is meant to help you on the Keystone and Final. This test is part 1.
Instructions: Answer all questions to get your test result.
1) How do eukaryotic cells divide?
A
binary fission
B
mutations
C
cell division
D
duplication
2) what is the difference between a prokaryote and a eukaryote?
A
prokaryotes have a cell membrane, eukaryotes do not
B
eukaryotes have a cell membrane, prokaryotes do not
C
eukaryotes are smaller than prokaryotes
D
prokaryotes are more complex than eukaryotes
3) what happens during mitosis?
A
the DNA is copied
B
the nucleus of the cell divides
C
the DNA is replicated
D
the cytoplasm divides
4) what is cytokinesis?
A
when the plant cell wall grows
B
when the cytoplsm splits in two
C
when the DNA splits in two
D
when the cell membrane is repaired
5) What is binary fission?
A
how sex cells divide
B
how chromosomes divide
C
how prokayotic cells divide
D
how eukaryotic cells divide
6) Which stage of mitosis invloves chromosomes lined up in the middle?
A
telophase
B
interphase
C
metaphase
D
anaphase
7) which phase of mitosis involves replication?
A
anaphase
B
telophase
C
prophase
D
metaphase
8) Meiosis is different than mitosis because...
A
mitosis happens in every cell in the human body
B
meiosis only ever happens once in a lifetime
C
mitosis happens in sex cells not body cells
D
meiosis happens in sex cells not body cells
9) a normal cell has 46 chromosomes, how many in the haploid cell?
A
23
B
92
C
21
D
13
10) meiosis results in _____ cells
A
3
B
4
C
1
D
2
11) meiosis results in ___________ cells
A
diploid
B
ployploid
C
muliploid
D
haploid
12) Chargaff's rule states that...
A
C pairs with T
B
C pairs with A
C
G pairs with T
D
A pairs with T
13) When does DNA replication occur?
A
during the G 1 phase
B
during the S phase of the cell cycle
C
during the G 2 phase
D
during mitosis
14) Which protein helps to unwind DNA?
A
DNA activase
B
DNA polymerase
C
histones
D
chromotids
15) DNA is made of a sugar, a phosphate, and a...
A
nitrogen base
B
a bigger sugar
C
a carbon group
D
a lipid
16) DNA is made of a sugar, a phosphate and a ...
A
nitrogen base
B
lipid
C
carbon
D
oxygen base
17) a DNA strand has CCG TTC, what would the compliment strand look like?
A
AAG CCG
B
GGC AAG
C
AAT CCG
D
CCG TTC
18) Which enzyme adds the new complimentary base during replication?
A
histones
B
RNA polymerase
C
helicase
D
double helicase
19) if there is 21.5% cytosine, how much guanine should be in the DNA
A
13.4
B
19.1
C
21.5
D
28.8
20) which includes the others?
A
nucleotides
B
genes
C
DNA
D
chromosomes
*select an answer for all questions
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