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