RNA & DNA; Genes, Exons, and Introns

Question 1

What are the different classes of RNA?

Answer 1

1. mRNA
2. tRNA
3. rRNA

Question 2

What type of RNA where it carries the protein subunits (amino acids) to the mRNA transcript?

Answer 2

Transfer RNA

Question 3

What does the mRNA do?

Answer 3

mRNA encodes the protein sequence

Question 4

This RNA provides the catalytic activity.

Answer 4

Ribosomal RNA

Question 5

Protein Synthesis consists of two major steps. What are those two steps?

Answer 5

1. Transcription
2. Translation

Question 6

A segment of DNA that carries a base sequence that directs the synthesis of a particular protein, tRNA, or mRNA.

Answer 6

Gene

Question 7

True or False. In bacteria, the gene is discontinuous

Answer 7

False. The gene is continuous.

In, higher organisms, the gene is discontinuous.

Question 8

A section of DNA that CODES for a protein or RNA

Answer 8

Exon

Question 9

A section of DNA that does not code for anything functional.

Answer 9

Intron

Question 10

True or False. Initial RNA encodes only one polypeptide.

Answer 10

True

Question 11

mRNA is transcribed into a protein by?

Answer 11

Cytoplasmic ribosomes