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Meiosis, Mutation, And Punnett Square
Test Description: Review
Instructions: Answer all questions to get your test result.
1) A horse has a diploid of 64 chromosomes how many are in their gametes
A
23
B
32
C
12
D
64
2) Genetic variation allows a wide range of differences among organisms. In what phase of meiosis will the greatest possibility of variation occur.
A
Prophase2
B
Prophase1
C
Metaphase1
D
Anaphase 1
3) Down syndrome is a result of nondisjunction where chromosomes do not separate properly. What phase of meiosis could this occur in?
A
Metaphase
B
Anaphase
C
Prophase
D
Telephase
4) The removal or insertion of a will cause a DNA strand to move resulting in a mutation is a result of?
A
Inversiom
B
Nondisjunction
C
Translocation
D
Frameshift
5) Telephase 2 results in how many daughter cells and how much genetic information within those cells.
A
4/half
B
3/half
C
1/ identical
D
2/identical
6) Two heterozygous parents with black hair crossed what is the probiblity the children will have brown hair. Black is dominant over brown
A
50%
B
75%
C
0
D
25%
7) A homozygous dominant parent for tall is cross with a homozygous recessive short. What is the probability the children will be short? Where tall is dominant over short
A
75
B
100
C
0
D
25
8) If a karyotype has how many pairs of chromosomes of a normal person?
A
18
B
46
C
6
D
23
9) If the 21st pair of a karyotype has three chromosomes how many chromosomes would the person has?
A
46
B
47
C
23
D
12
10) Which stage of the cell cycle is responsible for duplicating DNA
A
G2
B
G1
C
S
D
M phase
*select an answer for all questions
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