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Sexual reproduction

Total questions: 69

Worksheet time: 39mins

Name
Class
Date
1.

CROSSING OVER INCREASES

a)

LIFE SPAN

b)

GENETIC VARIATION

c)

THE NUMBER OF OFF-SPRING

d)

ALL ARE TRUE

2.

MEIOSIS

a)

REDUCES THE NUMBER OF CHROMOSOMES BY ONE HALF

b)

PRODUCES UNIQUE SEX CELLS

c)

ALLOWS TRAITS TO BE PASSED TO OFFSPRING

d)

ALL ARE TRUE

e)

INCREASE GENETIC VARIATION

3.

FERTILIZATION OCCURS WHEN

a)

THE SPERM UNITES WITH THE EGG

b)

THE SPERM UNDERGO MEIOSIS

c)

THE EGG UNDERGOES MEIOSIS

d)

THE EGG AND SPERM UNDERGOES MEIOSIS

4.

What is it called when a sperm and egg unite and form a zygote?

a)

meiosis

b)

fertilization

c)

cell division

d)

mitosis

5.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
6.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
7.

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
8.

Which letter(s) in the diagram correspond to cells that are monoploid/haploid? 

a)
A
b)
B
c)
C
d)
A and B
9.

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
10.
Crossing over helps promote 
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
11.

A human zygote should have _____ chromosomes inside.

a)
46
b)
23
c)
92
d)
64
12.
Which of the following cells is a gamete?
a)
egg
b)
bone
c)
heart
d)
muscle
13.

When does replication of chromosomes occur in animal cell meiosis?

a)
Before Meiosis I and Meiosis II
b)
Before Meiosis II Only
c)
Before Meiosis I Only
d)
During Prophase I and Prophase II
14.
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
15.

If a somatic cell in a butterfly contains 24 chromosomes, a butterfly egg would contain

a)
3
b)
6
c)
12
d)
24
16.
Human eggs and sperm are _____, and each has ____ chromosomes.
a)
diploid, 23
b)
diploid, 46
c)

monoploid/haploid, 23

d)

monoploid/haploid, 46

17.

Which of the following is NOT found in the Pistil?

a)

Ovary

b)

Filament

c)

Style

d)

Stigma

18.

What is the transfer of pollen grains from anther to stigma of one plant to another plant of the same species called?

a)

Pollination

b)

Self- Pollination

c)

Cross-Pollination

d)

Fertilization

19.

What is the sticky part of a flower that receives pollen?

a)

Style

b)

Filament

c)

Ovary

d)

Stigma

20.

It develops into fruits after fertilization.

a)

Pistil

b)

Ovary

c)

Ovule

d)

Flower

21.

This is where pollen is made

a)

Anther

b)

Filament

c)

Stamen

d)

Flower

22.

What is the sexual reproductive system of plants called?

a)

Flower

b)

Stem

c)

Leaves

d)

Fruits

23.

What is the transfer of pollen from anther to stigma of the same flower or another flower of the same plants called?

a)

Self- pollination

b)

Pross-pollination

c)

Pollination

d)

Personal Pollination

24.

It protect the ovules

a)

Ovary

b)

Ovule

c)

Sepals

d)

Petals

25.

Which of the following are part of the stamen?

a)

Anther & Style

b)

Style & Filament

c)

Anther & Filament

d)

Stigma & Style

26.

What is the seed made from

a)

The fertilized egg

b)

The ovary

c)

The anther

27.

The growth of a seed into a plant is called

a)

Pollination

b)

Fertilization

c)

Seed and fruit formation

d)

Germination

28.

What conditions are needed for germination

a)

Light, water, oxygen

b)

Water, oxygen, proper temperature

c)

Water, cold, oxygen

d)

Dry, proper temperature, oxygen

29.

Pollination happens by wind and insects

a)

False

b)

True

30.

A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents

a)

asexual reproduction

b)

pollination

c)

sexual reproduction

d)

tissue

31.

Which conditions are NOT needed for germination? (hint, there are 2)

a)

Water

b)

Light

c)

Suitable temperature

d)

Oxygen

e)

Carbon Dioxide

32.

The seed is protected by an outer covering called:

a)

seed coat

b)

food store

c)

germination

d)

embryo

33.

What makes an avocado a fruit?

a)

An avocado contains a seed.

b)

An avocado is green.

c)

An avocado grows on a tree.

d)

An avocado are edible.

34.

What part of the seed provides food for the plant as it begins to grow?

a)

food storage (cotyledon)

b)

embryo

c)

seed coat

35.

What part of the seed grows into the new plant?

a)

embryo

b)

seed coat

36.

Chromosomes that are organized in pairs, are the same size, and have the same genes are called _______ chromosomes.

a)

homeostasis

b)

homologous

c)

matching

d)

sister

37.

The pairing of homologous chromosomes to form a tetrad during meiosis

a)

synapsis

b)

tetrads

c)

polar bodies

d)

gametes

38.
The four chromatids in a pair of homologous chromosomes that come together as a result of synapsis during meiosis
a)
synapsis
b)
tetrad
c)
ovum
d)
chromosomes
39.
Male gamete
a)

ovary

b)

ovule

c)
sperm
d)

stamen

40.
The part of a flower that produces the male reproductive cells (pollen).
a)
anther
b)
style
c)
stigma
d)
filament
41.

What are gonads?

a)

Gonads are sex organs that produce gametes

b)

Gonads are gorillas found in Tasmania

c)

Gonads are sex cells

d)

Gonads are fusion of gametes

42.

What are the male gonads?

a)

Sperm

b)

Semen

c)

Testes

d)

Ovaries

43.

What are the female gonads?

a)

Eggs

b)

Testes

c)

Stamen

d)

Ovaries

44.

What type of pollination is shown in this diagram?

a)

Cross pollination

b)

Self pollination

c)

Single pollination

d)

Transfer pollination

45.

What type of pollination would it be considered when a bee walks on an anther and transfers pollen to the stigma of the SAME flower?

a)

Cross pollination

b)

Self pollination

c)

Single pollination

d)

Transfer pollination

46.

What can you infer about a brightly-colored flower?

a)

B

It has a greater chance of pollination than a dull-colored flower

b)

A

It can only be pollinated by birds, not insects

c)

C

Its pollen is probably the same bright color

d)

D

It is probably pollinated by an insect that is attracted to that color

47.
I am a flower that produces nectar. What is the function of the nectar?
a)
To provide food for the flower
b)
To attract pollinators
c)
To attract animals to disperse the fruits
d)
To produce perfumes for Man
48.

What part of the seed develops into a plant?

a)

Embryo

b)

Seed Coat

c)

Roots

d)

Food Storage

49.

What part of the plant embryo will grow into the root?

a)

Spread

b)

Radicle

c)

Cotyledon

d)

Embryo

50.

True or false: the ovaries are connected directly to the fallopian tubes

a)

True

b)

False

51.

The zygote of a mammal develops in a special structure called a(n)

a)

egg

b)

ovary

c)

pupa

d)

uterus

52.

In mammals, the offspring is nourished in the female's body by ...

a)

Grub Hub

b)

zygote

c)

yolk

d)

placenta

53.

Pregnancy lasts ..... days.

a)

200

b)

280

c)

300

d)

360

54.

A chromosome is composed of two identical sister

a)

centromeres

b)

chromatids

c)

autosomes

d)

somatic cells

55.

During meiosis, if an organism has 10 chromosomes, how many will the new daughter cells have?

a)

10

b)

8

c)

5

d)

2

56.

Full set of chromosomes of a cell arranged with respect to size, shape, and number.

a)

chromatin

b)

karyotype

c)

phenotype

d)

genotype

57.

How many chromosomes do the daughter cells of humnas have in meiosis?

a)

23

b)

46

c)

2

d)

4

58.

Where does the following occut?

A) Meiosis?

B) Fertilization?

C) Growth & Development of Baby?

a)

A) 5

B) 4

C) 3

b)

A) 4

B) 5

C) 3

c)

A) 3

B) 4

C) 5

d)

A) 3

B) 5

C) 4

59.

"C" will inherit...

a)

46 chromosomes from each parent

b)

half of their chromosomes (23) from each parent

c)

Double the amount of chromosomes from each parent

d)

Pairs of chromosomes from each parent

60.

Identify the structure labeled "B".

a)

Fallopian Tubes

b)

Ovaries

c)

Uterus

d)

Placenta

61.

Which fertilization and development method is most typical of humans before birth occurs?

a)

external fertilization and external development

b)

external fertilization and internal development

c)

internal fertilization and external development

d)

internal fertilization and internal development

62.

The diagram to the left represents an event in human reproduction. The numbers in the drawing represent the number of

a)

genes

b)

nucleus

c)

chromosomes

d)

DNA

63.

The photograph to the left shows three cats with

differences in their fur length and patterns.These differences are most likely due to

a)

dietary habits

b)

asexual reproduction

c)

sexual reproduction

d)

damage from disease

64.

The placenta is responsible for​ helping with ​ (a)   , (b)   and​ (c)   for the growing fetus by the process of ​ (d)  

Choose from the below words
nutrition
respiration
excretion
transport
growth
reproduction
synthesis
diffusion.
active transport
mixing with moms blood
65.

What hormone maintains pregnancy and the thickening of the uterine lining?

a)

Progesterone

b)

Testosterone

c)

Estrogen

66.

What hormone helps the egg to develop

a)

Progesterone

b)

Testosterone

c)

Estrogen

67.
Question Image

Match the following

a)

A

1.

Fallopian tube

b)

B

2.

ovary

c)

C

3.

uterus

d)

D

4.

vagina

68.

Sperm are deposited in

a)
A
b)

B

c)

C

d)
D
69.

Ovules are made in (a)   and pollen is made in ​ ​ (b)  

Choose from the below words
the ovary
the anther
the stigma
the filament
the petals

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