Anabella Francis

Biology

14 March, 20:23

Check my Answers?

1. Which of the following is a function of RNA polymerase?

A. unwind the DNA double helix during transcription

B. join the RNA strands after replication

C. add amino acids to the growing polypeptide chain during translation

D. separate the protein from the ribosome during termination

2. Which type of RNA is called the "blueprint" for construction of a protein:

A. tRNA

B. rRNA

C. mRNA

D. all three types of RNA act as blueprints

3. RNA lacks which of these nitrogenous bases?

A. a

B. u

C. t

D. g

4. The cellular structure where proteins are made is the:

A. smooth endoplasmic reticulum

B. ribosomes

C. nucleus

D. cell membrane

5. Changes in the gene are referred to as:

A. mutations

B. mutagens

C. meiosis

D. codons

My Answers:

1. A

2. C

3. C

4. B

5. A