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DNA, Mitosis, and Meiosis

Total questions: 34

Worksheet time: 17mins

Name
Class
Date
1.
Most of the cells in the human body are produced by
a)
mitosis
b)
meiosis
2.

Cells made through meiosis are genetically

a)

different

b)

identical

3.
What causes genetic variation in meiosis?
a)

there is no genetic variation in meiosis

b)
crossing over of chromosomes
c)
separation of chromosomes
d)

sperm and egg coming together after meiosis

4.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
5.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
6.

Which organelle is DNA usually found in?

a)

cell membrane

b)

ribosome

c)

chloroplast

d)

nucleus

7.
The drawing shows the structure of what molecule?
a)
A DNA molecule
b)
A lipid molecule
c)
A carbohydrate molecule
d)
A protein molecule
8.
A long chain of amino acids is a/an
a)
protein
b)
nucleic acid
c)

nitrogenous base

d)
mRNA
9.
A strand of DNA that looks like a twisted ladder is called a _____________________
a)
triple twist
b)
corkscrew
c)
double helix
d)
chain reaction
10.

In which phase does the DNA copy itself?

a)

interphase

b)

metaphase

c)

anaphase

d)

telophase

11.
Mitosis is a type of ________________ reproduction.
a)
Sexual
b)
Asexual
12.
How many chromosomes does a human cell have?
a)
42
b)
46
c)
24
d)
64
13.

How many cells are produced in mitosis?

a)
1
b)
2
c)
4
d)
6
14.

A single California Blackworm can break apart to become two identical new worms. What type of reproduction does this example represent?

a)

Sexual reproduction

b)

Asexual reproduction

15.

Penguins lay 1-2 fertilized eggs that the male and female take turns incubating on their feet. What type of reproduction does this example represent?

a)

Sexual reproduction

b)

Asexual reproduction

16.

Reproducing asexually will produce offspring ...

a)

genetically different from each other

b)

genetically identical to the parent

17.

Which of the following are similarities between mitosis and meiosis? (select any/all that apply)

a)

They both create body cells

b)

The both divide twice

c)

They are both a form of cell division

d)

Interphase comes before both

18.

Select all that apply about crossing over

a)

Creates genetic diversity

b)

Part of mitosis

c)

Part of meiosis

d)

Occurs after cell division has already happened

19.

A single California Blackworm can break apart to become two identical new worms. What type of reproduction does it use?

a)

Meiosis

b)

Mitosis

20.

True or false: all gametes end up with 23 chromosomes, regardless of the organism that made them

a)

True

b)

False

21.

During interphase, DNA duplicates during...

a)

Synthesis (s)

b)

G0

c)

Telophase

d)

G1

22.

When sperm and egg come together, what is the resulting first cell called?

a)

Toddler

b)

Body cell

c)

Zygote

d)

Epithelial cell

23.

Which of the following are true about mitosis (select all that apply)

a)

Creates two identical daughter cells

b)

Creates cells to repair and replace old/damaged cells

c)

Is a form of asexual reproduction

d)

Is how humans reproduce

24.

Which of the following are examples of gametes?

a)

Daughter cells

b)

Sperm

c)

Zygote

d)

Egg

25.

Interphase occurs (select any that apply)

a)

Before mitosis

b)

After mitosis

c)

Before meiosis

d)

After meiosis

26.

True or false: the order of the nitrogenous bases in DNA doesn't matter; the DNA will just know what kind of protein to make

a)

True

b)

False

27.

Penguins lay 1-2 fertilized eggs that the male and female take turns incubating on their feet. What type of reproduction do they use?

a)

Mitosis

b)

Meiosis

28.
After meiosis is complete how many cells will there be?
a)
1
b)
2
c)
3
d)
4
29.

A quokka has 11 chromosomes in its gametes. How many chromosomes will it's body cells have?

a)

11

b)

5.5

c)

22

d)

44

30.
Another name for a sex cell is a:
a)
gamete
b)
embryo
c)
bone cell
d)
muscle cell
31.
Sperm and Egg cells are produced using which process?
a)
Mitosis
b)
Meiosis
c)

Fertilization

d)
None of these
32.
The process on the left is:
The process on the right is:
a)
Left: meiosis
Right: meiosis
b)
Left: meiosis
Right: cloning
c)
Left: mitosis
Right: meiosis
d)
Left: mitosis
Right: mitosis
33.

The "rungs" of the ladder (A,T,C,G) are called...

a)

Proteins

b)

RNA

c)

Nitrogenous bases

d)

Amino acids

34.

A slow loris has 50 chromosomes in its body cells. How many chromosomes will it's gametes have?

a)

50

b)

25

c)

100

d)

75