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Molecular Biology Worksheet

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the basic molecular structure (building block) of a protein?

a)

Amino Acid

b)

Nucleotide

c)

Codon

d)

Ribosome

2.

Which type of RNA brings amino acids to the ribosomes?

a)

mRNA

b)

tRNA

c)

DNA

d)

Anticodon

3.

What is the process where mRNA is created from a DNA sequence (gene)?

a)

Translation

b)

Transcription

c)

Replication

d)

Anticodon

4.

What is the carrier of genetic material?

a)

mRNA

b)

Ribosome

c)

DNA

d)

Codon

5.

Using the DNA sequence ATA GCA GAA TAG, write the complementary (2nd strand) of DNA.

a)

TAT CGT CTT ATC

b)

ATA GCA GAA TAG

c)

TTA GCC GGA TAC

d)

AGC TGA CCT GAT

6.

How many codons are in the following mRNA sequence: UAU CGU CUU AUC?

a)

2

b)

3

c)

4

d)

5

7.

Transcribe the DNA sequence TAC TGA GCA ATT into mRNA.

a)

AUG ACU CGU UAA

b)

UAC UGA GCA AUU

c)

ATG TCA CGT TAA

d)

TAC TGA GCA ATT

8.

How many nitrogen bases are in 4 codons?

a)

8

b)

10

c)

12

d)

6

9.

What are the three parts in a DNA nucleotide? Be specific about the sugar type.

a)

Phosphate, ribose sugar, base

b)

Phosphate, deoxyribose sugar, base

c)

Phosphate, glucose, base

d)

Phosphate, fructose, base

10.

What is one difference between DNA and RNA?

a)

DNA contains uracil, RNA contains thymine

b)

DNA is single-stranded, RNA is double-stranded

c)

DNA contains deoxyribose sugar, RNA contains ribose sugar

d)

DNA is found only in the cytoplasm, RNA is found only in the nucleus