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Worksheets8.11.1 Sexual Reproduction ond Meiosis
Total questions: 25
Worksheet time: 16mins
Name
Class
Date
1.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
2.
This produces 2 identical cells.
a)
mitosis
b)
meiosis
3.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
4.
What phase is shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
5.
Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
a)
23, 46
b)
46, 23
c)
2, 4
d)
50, 100
6.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
7.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
8.
What kind of cells are made in MEIOSIS?
a)
Haploid Gametes
b)
Diploid Somatic Cells
c)
Skin Cells
d)
Liver Cells
9.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
10.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
11.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
12.
When homologous chromosomes match up, they form a structure call a ___________.
a)
tetrad
b)
triad
c)
diploid
d)
gamete
13.
Crossing over helps promote
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
14.
Why do we need meiosis?
a)
To double the number of chromosomes going into sex cells
b)
To halve the number of chromosomes going into sex cells
c)
To triple the number of chromosomes going into sex cells
d)
To not change the number of chromosomes going into sex cells
15.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
16.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
17.
Identify the phase.
a)
Metaphase I
b)
Metaphase II
c)
Prophase I
d)
Anaphase II
18.
How many daughter cells are produced from meiosis ?
a)
10
b)
6
c)
4
d)
2
19.
What is one advantage of sexual reproduction?
a)
offspring are identical to parents
b)
offspring are resistant to viruses
c)
offspring are born live, rather than from eggs
d)
offspring inherit a wider variety of genetic information
20.
Identify the phase:
a)
Metaphase I
b)
Metaphase II
c)
Anaphase I
d)
Anaphase II
21.
Identify the phase.
a)
Telophase I
b)
Telophase II
c)
Metaphase I
d)
Metaphase II
22.
What is synapsis?
a)
the pairing of homologous chromosomes
b)
the pinching in of the cytoplasm
c)
the copying of the DNA
d)
the pulling apart at the centromeres
23.
A fertilized egg:
a)
gamete
b)
zygote
c)
homolog
d)
blastocyst
24.
When do homologous chromosomes pair up?
a)
interphase
b)
prophase I
c)
prophase II
d)
metaphase I
25.
When are sister chromatids pulled apart?
a)
anaphase I
b)
anaphase II
c)
telophase I
d)
telophase II
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