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DNA and RNA and DNA Replication

Total questions: 14

Worksheet time: 28mins

Name
Class
Date
1.

Which of the following best describes the shape of a DNA molecule?

a)

double helix

b)

contains ribose

c)

made of amino acids

2.

Which of the following is the monomers of DNA?

a)

amino acids

b)

nucleotides

c)

fatty acids

3.

Guanine bonds with ______________.

a)

Adenine

b)

Thymine

c)

Cytosine

4.

What does this picture represent?

a)

amino acid

b)

base pairing

c)

nucleotide

5.

The weakest bond in the above molecule is represented by the X. Why does this bond need to be weak?

a)

allows DNA to "unzip"

b)

Allows DNA to twist.

c)

Allows sugar and phosphate to break easily.

6.

DNA and RNA are classified as which type of organic compound?

a)

Nucleic acids

b)

proteins

c)

charbohydrates

7.
RNA has how many strands?
a)
one
b)
two
8.

Identify.

a)

DNA

b)

mRNA

c)

tRNA

9.

Identify.

a)

DNA

b)

mRNA

c)

rRNA

10.

Which type of RNA carries amino acids to Ribosomes

a)

mRNA

b)

rRNA

c)

tRNA

11.

Which type of RNA takes the instructions from the nucleus(DNA) to the cytoplasm?

a)

mRNA

b)

tRNA

c)

rRNA

12.

What type of RNA is shown in this image?

a)

rRNA

b)

mRNA

c)

tRNA

13.

Three consecutive nucleotides on a mRNA molecule

a)

Translation

b)

anticodon

c)

codon

14.

Three consecutive nucleotides on a tRNA molecule

a)

Translation

b)

Transcription

c)

anticodon