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DNA part 3

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

The leading strand of a DNA molecule has the following sequence:

5’-CGCATGTAGCGA-3’

Which of the following sequences is complementary to the leading strand shown above?

a)

5’-GCGTACATCGCT-3’

b)

3’-GCGTACATCGCT-5’

c)

3’-GACTACATCGCT-5’

d)

3’-GCGTACCTGCT-5’

2.

Adenine always pairs with:

a)

Thymine

b)

Cytosine

c)

Guanine

d)

Ribose

3.

The DNA molecule is held together by:

a)

magnetism

b)

glucose

c)

glue

d)

hydrogen bonds

4.

The process by which DNA makes a copy of itself is called:

a)

transcription

b)

translation

c)

replication

d)

synthesis

5.

RNA differs from DNA in that:

a)

it has a different kind of sugar

b)

it is single stranded

c)

it has Uracil

d)

all of these

6.

DNA is called the "blueprint of life" because:

a)

it is like a fingerprint

b)

it has a blue color

c)

it contains the plans for building an organism

d)

it can relay messages to other molecules

7.

The two men who established the structure of DNA were:

a)

Frederick and Alvers

b)

Watson and Crick

c)

Berkely and Fry

d)

Darwin and Lamarke

 

8.

Which of the following takes the genetic code to the cytoplasm:

a)

DNA

b)

deoxyribose

c)

tRNA

d)

mRNA

9.

The sugar found in DNA is:

a)

equal

b)

ribose

c)

deoxyribose

d)

glucose

10.

A gene is:

a)

a segment of DNA that codes for a protein

b)

a set of homologous chromosomes

c)

a molecule within DNA

d)

a type of pants

11.

In a DNA molecule, if 15% of the Nitrogen bases is T, what percentage of the bases is G?

a)

15

b)

85

c)

35

d)

75

12.

In a DNA molecule, if 15% of the Nitrogen bases is T, what percentage of the bases is A?

a)

15

b)

95

c)

75

d)

85