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Worksheets

BJU Life Science Ch. 3 Test

Total questions: 45

Worksheet time: 11hrs 15mins

Name
Class
Date
1.

The shape of a DNA molcule was first described to be a ______.

a)

double helix

b)

loop-de-loop

c)

spiral shell

d)

trapeze swing

2.

The shape of a DNA molecule can also be described as a _____.

a)

Loop-de-loop

b)

sea star

c)

trapeze swing

d)

twisted ladder

3.

The smaller units that make up DNA that consist of a sugar, phosphate and a base are called a ______.

a)

amino acids

b)

deoxyriboses

c)

nucleotides

d)

proteins

4.

Which of the following is NOT part of a nucleotide?

a)

a base

b)

a gene

c)

a phosphate

d)

a sugar

5.

In a DNA molecule, Adenine (A) always pairs with _____.

a)

Cytocine (C)

b)

Guanine (G)

c)

Thymine (T)

d)

Uracil (U)

6.

Which of the following determine (s) the protein that is built from a gene?

a)

the nucleotides that are there

b)

the order of the nucleotides

c)

BOTH

d)

NEITHER

7.

Which RNA is produced during TRANSCRIPTION?

a)

messenger (mRNA)

b)

protein RNA (pRNA)

c)

ribosome RNA (rRNA)

d)

transfer RNA (tRNA)

8.

RNA uses ______ instead of Thymine (T).

a)

Adenine (A)

b)

Cytosine (C)

c)

Guanine (G)

d)

Uracil (U)

9.

Which of the following is NOT a stage name of the cell cycle?

a)

cytokinesis

b)

interphase

c)

mitosis

d)

replication

10.

What is the FIRST STEP in replication (copying of DNA)?

a)

Enzyme unzips DNA into 2 strands

b)

Ribosome reads the mRNA

c)

mRNA leaves the nucleus

d)

DNA coils up into chromosomes

11.

What is the end result of mitosis?

a)

the cell divides to make gametes

b)

the cell makes copies of DNA

c)

the cell makes proteins

d)

the cell divides to make 2 identical daughter cells

12.

Matching pairs of chromosomes in a diploid (2n) cell are called _______.

a)

cousin chromatins

b)

daughter chromosomes

c)

homologous chromosomes

d)

sister chromatids

13.

Each nucleotide is made-up of three parts: a sugar, phosphate and a base.

a)

True

b)

False

14.

Changing the order of the nucleotides in DNA leaves the protein that is built the same.

a)

True

b)

False

15.

In RNA, uracil (U) always pairs with adenine (A).

a)

True

b)

False

16.

Ribosome RNA (rRNA) is responsible for carrying amino acids (AA) to the ribsome.

a)

True

b)

False

17.

The processes of transcription and translation are so complex and work together that they point to a designer or a God that planned it all out.

a)

True

b)

False

18.

Cells need a copy of their DNA before mitosis happens so that each new cell has its own set of DNA.

a)

True

b)

False

19.

Cells spend most of their lives doing mitosis.

a)

True

b)

False

20.

Zygotes combine to make gametes.

a)

True

b)

False

21.

The structure of DNA is evidence for a powerful Creator.

a)

True

b)

False

22.

Which part of mitosis is when the cytoplasm and membrane split into 2 cells?

a)

anaphase

b)

cytokinesis

c)

interphase

d)

metaphase

23.

What stage of mitosis is when the chromosomes line up in the MIDDLE of the cell?

a)

anaphase

b)

interphase

c)

metaphase

d)

prophase

24.

What stage of mitosis happens when the nuclear membrane disappears, the chromosomes are made and the spindle fibers appear?

a)

anaphase

b)

interphase

c)

telophase

d)

prophase

25.

What stage of mitosis happens when the sister chromatids are pulled AWAY from each other/

a)

anaphase

b)

interphase

c)

telophase

d)

metaphase

26.

What part of the cell cycle does the cell copy its DNA and do normal functions?

a)

anaphase

b)

interphase

c)

mitosis

d)

cytokinesis

27.

Which stage of mitosis happens when the chromosomes start uncoiling and there are 2 nuclei forming?

a)

anaphase

b)

metaphase

c)

telophase

d)

interphase

28.

There are _______ different kinds of BASES found in DNA.

a)

1

b)

2

c)

3

d)

4

29.

A group of 3 nucleotides forms a _______ or the code/words of DNA and RNA molecules.

a)

codon

b)

base

c)

sugar

30.

Female gametes are called _______.

a)

egg

b)

sperm

c)

pollen

d)

None

31.

Male gametes are called ________.

a)

eggs

b)

ovum

c)

sperm

d)

none

32.

When gametes combine, they form a diploid cell called a _____.

a)

egg

b)

sperm

c)

zygote

d)

cell

33.

Name the 4 bases found in DNA.

(a)  

34.

Name 2 ways RNA is different than DNA.

(a)  

35.

Put the following in the correct ORDER for transciption:

a. the mRNA leaves the nucleus

b. an enzyme unzips part of the DNA molecule

c. an enzyme adds the matching nucleotides to make the mRNA

d. an enzyme reads the order of the nucleotides found in the DNA

a)

A, B, C, D

b)

A,C,D, B

c)

D, B, A, C

d)

B, D, C, A

36.

Name this phase of mitosis.

(a)  

37.

Name this phase of mitosis.

(a)  

38.

Name this phase of mitosis.

(a)  

39.

Name this phase of mitosis.

(a)  

40.

Name this phase of mitosis.

(a)  

41.

What is the purpose of mitosis?

a)

to make gametes

b)

to replace damaged cells and for growth

c)

Neither

42.

What is the purpose of meiosis?

a)

to make gametes

b)

to repair damaged cells and for growth

c)

Neither

43.

What is the process going on in the picture?

a)

transcription

b)

mitosis

c)

meiosis

d)

translation

44.

In meiosis, how would you describe the daugher cells?

a)

2 identical to the parent cell

b)

2 genetically different from the parent cell

c)

4 identical to the parent cell

d)

4 genetically different from the parent cell

45.

Which phase of meiosis is pictured?

a)

prophase

b)

anaphase

c)

metaphase 1

d)

metaphase 2