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WorksheetsBiology Unit 3.2: Meiosis
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?
a)
segregation of sister chromatids
b)
condensation and segregation of alleles
c)
mutationin which the DNA content of the gene is altered
d)
crossing - over in which alleles are exchanged
2.
What phase is shown here?
a)
Prophase II
b)
Metaphase I
c)
Metaphase II
d)
Anaphase I
3.
What phase is shown here?
a)
Anaphase I
b)
Prophase I
c)
Metaphase II
d)
Metaphase I
4.
What phase is shown here?
a)
Metaphase II
b)
Telophase I
c)
Telophase II
d)
Metaphase I
5.
What phase is shown here?
a)
Telophase I
b)
Metaphase II
c)
Telophase II
d)
Anaphase I
6.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
7.
Compared to the number of chromosomes contained in a body cell, how many chromosomes would normally be contained in a gamete?
a)
The same number
b)
One-fourth as many
c)
Twice as many
d)
Half as many
8.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
9.
What is one of the advantages, why is it better to reproduce sexually versus asexually?
a)
survival of the fittest
b)
overproduction
c)
genetic variation
d)
cloning
10.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
11.
A human being has a somatic cell that has 46 chromosomes. What is the haploid number found in a gamete?
a)
23
b)
46
c)
69
d)
92
12.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its normal body cells?
a)
20
b)
40
c)
80
d)
160
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