Prince George Community College » Biology » Bio 2010 - Microbiology » Summer 2022

Question #1

This term refers to the complete genetic makeup of an organism.

A. deoxyribonucleic acid

B. genome

C. phenotype

Question #2

Which of the following is true about DNA polymerase?

A. It can synthesize mRNA in the 3’ to 5’ direction.

B. It can synthesize DNA in the 3’ to 5’ direction

C. It can synthesize mRNA in the 5’ to 3’ direction.

Question #3

What is the main function of tRNA in relation to protein synthesis?

A. all of these

B. inhibits protein synthesis

C. it proof reads and edits

Question #4

Which of the following changes would be expected if a CAUUUG sequences of bases mutated to CACUUG?

A. the identity of one amino acid would change

B. the identity of more than one amino acid would change

C. the amino acid sequence would be shorter than expected

Question #5

The enzyme required for transcription is called:

A. restriction enzyme

B. RNAse

C. DNA polymerase

Question #6

If lactose and glucose are provided in the growth medium of a culture of Escherichia coli then:

A. Lactose metabolism is favored

B. Neither lactose and glucose are metabolized.

C. Both lactose and glucose are metabolized at same rate

Question #7

This protein is produced by a regulatory gene:

A. inducer

B. operon

C. promoter

Question #8

The transfer of genes from one cell to another by a bacteriophage is known as __________________

A. Transformation

B. Conjugation

C. Recombination