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Meiosis & Sexual Reproduction

Total questions: 30

Worksheet time: 17mins

Name
Class
Date
1.

A female sex cell is called...(select two)

a)

an egg

b)

a sperm

c)

an ovum

2.

A male sex cell is called...

a)

an egg

b)

a sperm

c)

an ovum

3.

The new cell that forms from fertilization is called

a)

baby

b)

spore

c)

zygote

d)

cell

4.

What percentage of chromosomes are handed down to the offspring by a sperm cell?

a)

75%

b)

25%

c)

50%

d)

100%

5.

Each pair of chromosomes in a diploid cells is called a ___________ pair.

a)

Haploid

b)

Homologous

c)

Diploid

d)

sexy

6.

Cells that contain homologous pairs of chromosomes are...

a)

Diploid

b)

Haploid

7.

A type of cell division that occurs with body cells in the gonads and results in four new sex cells each with half the number of chromosomes.

a)

Mitosis

b)

Meiosis

8.

Fruit flies have body cells with a total of 8 chromosomes. How many total chromosomes are found in their sex cells?

a)

16 chromosomes.

b)

46 chromosomes.

c)

8 chromosomes.

d)

4 chromosomes.

9.

Which one is developed first?

a)

Embryo

b)

Fetus

c)

Baby

d)

Zygote

10.

The zygote is the...

a)

fusion between haploid cells

b)

fusion between diploid cells

11.

When does fertilization occur in humans?

a)

When an egg cell is released

b)

When implantation occurs

c)

When sperm and egg nuclei fuse

d)

When sperm are released

12.

In humans, sperm cells contain...

a)

23 pairs of chromosomes

b)

46 chromosomes

c)

23 chromosomes

d)

None of the options

13.

In humans, egg cells contain...

a)

23 pairs of chromosomes

b)

46 chromosomes

c)

23 chromosomes

d)

None of the options

14.

Egg and sperm cells are always...

a)

Haploid

b)

Diploid

15.

Sperm and Ova are...(select three)

a)

Somatic cells

b)

Gametes

c)

Reproductive cells

d)

Sex cells

16.

Male gonads are called...

a)

testis

b)

ovaries

c)

sperm

d)

ova

17.

Female gonads are called

a)

testis

b)

ovaries

c)

sperm

d)

ova

18.

What process must occur so that a zygote may develop into an embryo, then a fetus, and eventually a baby?

a)

Meiosis

b)

Fertilization

c)

Mitosis

d)

Sexual reproduction

19.

Which sex chromosomes would indicate a typical human female?

a)

XX

b)

XY

20.

Homologous chromosomes...(select two)

a)

contain the same types of genes in the same locations

b)

are the same size

c)

do not contain the same genes

d)

are very different in size

21.

XY are...

a)

homologous chromosomes

b)

NOT homologous chromosomes

22.

XX are...

a)

homologous chromosomes

b)

NOT homologous chromosomes

23.

Sex cells are created through the process of...

a)

Meiosis

b)

Mitosis

24.

Body cells are created through the process of...

a)

Meiosis

b)

Mitosis

25.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
26.
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
27.

Which type of cell division is being shown?

a)

Mitosis

b)

Meiosis

28.

Sometimes, one or more pairs of homologous chromosomes or sister chromatids fail to separate normally during meiosis, resulting in new sex cells with too many or too few chromosomes. What is this event called?

a)

nondisjunction

b)

anaphase I

c)

nondiploidy

d)

karyotype

29.

Which sex chromosomes would indicate a typical human male?

a)

XX

b)

XY

30.

What type of cells are being produced by the process shown in the diagram? (Select all that apply)

a)

Sex cells

b)

Gametes

c)

Body Cells

d)

Somatic Cells

e)

Sperm or egg