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REPRODUCTION AND DEVELOPMENT

Total questions: 39

Worksheet time: 39mins

Name
Class
Date
1.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?
a)
20
b)
40
c)
80
d)
160
2.

Which of the following undergoes meiosis in the development of pollen grains?

a)

Microspore

b)

Megaspore

c)

Megaspore mother cell

d)

Microspore mother cell

3.

The ovule develops into ________ and the ovary develop into _________

a)

a cotyledon, an embryo

b)

an embryo, a seed

c)

a seed, a fruit

d)

a fruit, a seed

4.
Identify the correct order of development.  
a)
Fertilization, Zygote, Embryo, Cell Differentiation 
b)
Cell Differentiation, Zygote, Embryo, Fertilization 
c)
Fertilization, Embryo, Zygote, Cell Differentiation 
d)
Zygote, Embryo, Fertilization, Cell Differentiation 
5.
After the egg is fertilised, where does the fertilized egg develops?
a)
A
b)
B
c)
C
d)
D
6.

Which of the following stimulates ovulation and development of corpus luteum

a)

Estrogen

b)

Progesterone

c)

FSH

d)

LH

7.

Where do the egg and sperm meet?

a)

The ovary

b)

The fallopian tube / oviduct

c)

The vas deferens

d)

The uterus

8.

Which of the following hormones inhibits contraction of uterus?

a)

Cortisol

b)

Oxytocin

c)

Prostaglandin

d)

Progesterone

9.

During an acrosome reaction, the acrosome

a)

Detaches, allowing the sperm to penetrate

b)

Releases enzyme that digest the outer layer of the egg

c)

Secretes calcium ions, which cause the sperm to fuse with the egg

d)

Releases inhibin, cause the sperm to bind to the egg

10.

The heart, muscles, bones and blood develop primarily from

a)

Ectoderm

b)

Mesoderm

c)

Endoderm

d)

Placenta

11.

Which of the following consist of a hollow ball of cells

a)

Gastrula

b)

Morula

c)

Blastocyst

12.

Uterine cycle consist of 3 phases. Which one is correct order of sequence?

a)

Proliferative > Menstrual flow > Secretory

b)

Menstrual flow > Secretory > Proliferative

c)

Secretory > Proliferative > Menstrual flow

d)

Menstrual flow > Proliferative > Secretory

13.

The part of a flower that contains the pollen grain

a)

stigma

b)

style

c)

anther

d)

filament

14.

Process of fertilizing flowers by transferring pollen from male to female parts

a)

pollination

b)

seed dispersal

c)

herding

d)

vegetative propagation

15.
What number of chromosomes are handed down by a egg cell?
a)
46
b)
12
c)
23
d)
96
16.
Sexual reproduction requires _____ parents and asexual reproduction requires ___ parents
a)
1,1
b)
2,2
c)
2,1
d)
1,2 
17.
In the male reproduction system, the testes produces sperm.
a)
True
b)
False
18.
Which cellular process is shown?
a)
meiosis
b)
endocytosis
c)
mitosis
d)
phagocytosis
19.
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
20.

How long is the menstrual cycle?

a)

1 week

b)

14 days

c)

28 days

d)

30 days

21.
How much DNA do you receive from one parent in sexual reproduciton
a)
25%
b)
50%
c)
75%
d)
100%
22.

Which of the following is true of a zygote?

a)

It forms into a blastocyst

b)

It is an unfertilized egg

c)

It produces haploid male gametophytes

d)

It is made up of only one cell

23.

Which hormone promotes the thickening of the endometrium and also inhibits the hormone that promotes the development of the follicle wall into the corpus luteum?

a)

LH

b)

Progesterone

c)

FSH

d)

Estrogen

24.

What does the blastocyst secrete?

a)

hCG

b)

Estrogen

c)

Progesterone

d)

GnRH

25.

What helps to prevent polyspermy?

a)

The contraceptive pill

b)

The unequal division of oocytes

c)

The placental barrier

d)

The cortical reaction

26.

Which is a negative feedback mechanism in the menstrual cycle?

a)

Follicle stimulating hormone inhibits estrogen

b)

Estrogen inhibits luteinizing hormone

c)

Estrogen inhibits follicle stimulating hormone

d)

Progesterone inhibits estrogen

27.

Through what process does a spermatid become a functioning spermatozoan?

a)

Mitosis

b)

Differentiation

c)

Fertilization

d)

Meiosis

28.

What is the correct order of events in fertilization?

a)

fusion of gametes, acrosome reaction and then cortical reaction

b)

cortical reaction, fusion of gametes and then acrosome reaction

c)

acrosome reaction, fusion of gametes and then cortical reaction

d)

fusion of gametes, cortical reaction and then acrosome reaction

29.

Which of the following is/are a role of testosterone in males?

I. Pre-natal development of male genitalia

II. Maintenance of sex drive

III. Increase in mental development

a)

II only

b)

I and II only

c)

II and III only

d)

I, II, and III

30.

Which structure contains lysosomal-like enzymes?

a)

Sertoli cells

b)

sperm head

c)

acrosome

d)

sperm tail

31.

Which hormone causes FSH and LH to be released?

a)

Testesterone

b)

Estrogen

c)

GnRH

d)

Progesterone

32.

Which hormone stimulates the build up of the endometrium?

a)

FSH

b)

LH

c)

Estrogen

d)

Progesterone

33.
In correct chronological order, the three phases of the human ovarian cycle are:
a)
menstrual → ovulation → luteal. 
b)
follicular → luteal → secretory. 
c)
menstrual → proliferative → secretory. 
d)
follicular → ovulation → luteal. 
34.

The process in which the zygote, having become the blastocyst, attaches to the lining of the uterus is

a)

Embryonic development

b)

Amniocentesis

c)

Implantation

d)

Fertilization

35.

Why does the embryo attach to the uterine lining?

a)

So the sperm cells can find it

b)

So it cannot flow out of the body during the period

c)

To get oxygen and nutrients from it

d)

To protect itself as it grows

36.

Identical twins are formed when

a)

the embryo splits into two and then stays stuck together

b)

when 1 egg is fertilized by 1 sperm and then divides into 2

c)

when two eggs are fertilized by one sperm

d)

when one egg is fertilized by two sperm

37.
What is the trophoblast?

a)
Future uterine lining 
b)
Future heart
c)
Future placenta
d)
Future brain
38.
What part of the blastocyst will develop into the human embryo and eventually into a fetus?  

a)
archenteron 
b)
trophoblast 
c)
 blastopore 
d)
inner cell mass 
39.

Which hormones continue to increase if fertilisation occurs? Select two

a)

Progesterone

b)

FSH

c)

LH

d)

Estrogen

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