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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
duplication
B
cell division
C
binary fission
D
mutations
2) what is the difference between a prokaryote and a eukaryote?
A
eukaryotes have a cell membrane, prokaryotes do not
B
prokaryotes are more complex than eukaryotes
C
eukaryotes are smaller than prokaryotes
D
prokaryotes have a cell membrane, eukaryotes do not
3) what happens during mitosis?
A
the DNA is copied
B
the cytoplasm divides
C
the nucleus of the cell divides
D
the DNA is replicated
4) what is cytokinesis?
A
when the plant cell wall grows
B
when the DNA splits in two
C
when the cell membrane is repaired
D
when the cytoplsm splits in two
5) What is binary fission?
A
how sex cells divide
B
how eukaryotic cells divide
C
how prokayotic cells divide
D
how chromosomes divide
6) Which stage of mitosis invloves chromosomes lined up in the middle?
A
telophase
B
interphase
C
anaphase
D
metaphase
7) which phase of mitosis involves replication?
A
prophase
B
anaphase
C
telophase
D
metaphase
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
mitosis happens in sex cells not body cells
D
meiosis only ever happens once in a lifetime
9) a normal cell has 46 chromosomes, how many in the haploid cell?
A
92
B
23
C
13
D
21
10) meiosis results in _____ cells
A
4
B
1
C
2
D
3
11) meiosis results in ___________ cells
A
muliploid
B
haploid
C
diploid
D
ployploid
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 the G 2 phase
B
during mitosis
C
during the S phase of the cell cycle
D
during the G 1 phase
14) Which protein helps to unwind DNA?
A
DNA polymerase
B
histones
C
chromotids
D
DNA activase
15) DNA is made of a sugar, a phosphate, and a...
A
a bigger sugar
B
nitrogen base
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
AAT CCG
B
CCG TTC
C
GGC AAG
D
AAG CCG
18) Which enzyme adds the new complimentary base during replication?
A
helicase
B
double helicase
C
histones
D
RNA polymerase
19) if there is 21.5% cytosine, how much guanine should be in the DNA
A
28.8
B
13.4
C
21.5
D
19.1
20) which includes the others?
A
nucleotides
B
genes
C
chromosomes
D
DNA
*select an answer for all questions
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