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Chromosomes and Inheritance

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

What is a gene?

a)

segments of code that appear on chromosomes

b)

segments of code that appear on pistils

c)

segments of code that are found in the brain

d)

segments of code that are found in the heart

2.

How many chromosomes does every cell in the body have? (except for sex cells)

a)

23

b)

46

c)

48

d)

50

3.

Fill in the blank.

All sexually-reproducing organisms form sex cells, which have ______the number of chromosomes that body cells have. 

a)

the same

b)

half

c)

less

d)

more

4.

When are chromosomes made?

a)

at the end of the cell cycle

b)

in the middle of the cell cycle

c)

at the beginning of the cell cycle

d)

throughout the cell cycle

5.

When does a chromosome get its X shape?

a)

during the cell cycle

b)

Never, it is Y shaped

c)

during photosynthesis

d)

during cellular respiration

6.

Approximately how many genes are found on 46 chromosomes?

a)

between 9-29

b)

between 1 miliion - 2 milliom

c)

between 20,000 - 25,000

d)

between 50 - 100

7.

During fertilization, how many chromosomes do you get from your father?

a)

20

b)

23

c)

46

d)

100

8.

True or False.

Mitosis forms new body cells.

a)

True

b)

False

9.

True or False.

Meiosis forms sex cells.

a)

False

b)

True

10.

Which process results in the formation of four daughter cells?

a)

Meiosis

b)

Mitosis

11.
the passing of traits from parents to offspring
a)
heredity
b)
genetics
c)
mutation
d)
hybrid
12.
The process that occurs in the formation of sex cells by which the number of chromosomes is reduced by half.
a)
meiosis
b)
mitosis
c)
fertilization
d)
pacification
13.
Meiosis produces __ sex cells
a)
2
b)
4
c)
6
d)
8
14.
How many chromosomes in a normal human body cell?
a)
46
b)
23
c)
92
d)
2
15.
How many chromosomes in a normal human sex cell?
a)
46
b)
23
c)
92
d)
2
16.
If a normal cat's body cells have 38 total chromosomes, how many chromosomes would a normal cat's sex cells have?
a)
19
b)
76
c)
38
d)
2
17.

The scientific study of heredity

a)

Inheritance

b)

Genetics

c)

Chromosomes

d)

Genes

18.

Specific characteristic of an individual that can be passed on.

a)

Trait

b)

Asexual Reproduction

c)

Sexual Reproduction

d)

Gamete

19.

All sexually producing organisms form sex cells which have ____ the number of chromosomes as body cells.

a)

half

b)

twice as much

c)

three fourths

d)

exactly

20.

Each gene contains ____ for coding a particular trait.

a)

constructions

b)

instructions

c)

diagrams

d)

proteins

21.

During fertilization, you receive ___ chromosomes from your father and ___ chromosomes from your mother.

a)

23-23

b)

46-46

c)

47-47

d)

24-24

22.
At the end of mitosis, how many identical cells will you have?
a)
1
b)
2
c)
3
d)
4
23.
After meiosis,  the haploid number of chromosomes in a human sex cell is:
a)
46
b)
92
c)
22
d)
23
24.
Meiosis creates how many cells?
a)
1
b)
2
c)
3
d)
4
25.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
26.
Which letter(s) in the diagram correspond to cells that are haploid? 
a)
A
b)
B
c)
C
d)
A and B
27.

Mice have 40 total chromosomes in their body cells (20 pairs). How many total chromosomes will be found in the daughter cells after mitosis

a)

20 chromosomes

b)

40 chromosomes

c)

80 chromosomes

d)

10 chromosomes

28.

Sex cells are identical to the parent cells and to other daughter cells?

a)

True

b)

False

29.

In mitosis, the end product is...

a)

2 haploid cells

b)

2 diploid cells

c)

4 haploid cells

d)

4 diploid cells

30.

The daughter cells in mitosis are...

a)

Identical

b)

Genetically unique

31.

In meiosis, the end product is...

a)

4 diploid cells

b)

2 diploid cells

c)

4 haploid cells

d)

2 haploid cells

32.

The cells produced in meiosis are...

a)

identical

b)

genetically unique

33.

Meiosis occurs in _____ cells.

a)

somatic cells

b)

sex cells

34.

What is the function of mitosis?

a)

cell reproduction and general growth and repair

b)

genetic diversity

c)

produce gametes

35.

During fertilization, you receive ___ chromosomes from your father and ___ chromosomes from your mother.

a)

23-23

b)

46-46

c)

47-47

d)

24-24

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