Unit 3: Molecular Genetics - Lesson 5 2.0

Question 1

What are the building blocks of DNA?

Answer 1

Made up of 4 different nucleotides.

Question 2

What are the building blocks of RNA?

Answer 2

Made up of 4 different nucleotides.

Question 3

What are the building blocks of proteins?

Answer 3

Made up of 20 different amino acids.

Question 4

What type of sugar does RNA contain?

Answer 4

Ribose sugar.

Question 5

Which nitrogenous base replaces Thymine in RNA?

Answer 5

Uracil.

Question 6

Is RNA single-stranded or double-stranded?

Answer 6

Single stranded.

Question 7

What are the three major RNA molecules involved in protein synthesis?

Answer 7

Messenger RNA (mRNA), Transfer RNA (tRNA), Ribosomal RNA (rRNA).

Question 8

What is the role of Messenger RNA (mRNA) in protein synthesis?

Answer 8

Acts as the intermediary between DNA and the ribosomes.

Question 9

What is the function of Transfer RNA (tRNA)?

Answer 9

Acts to transfer the appropriate amino acid to the ribosome to build a protein.

Question 10

What is the role of Ribosomal RNA (rRNA)?

Answer 10

Acts as a structural component of the ribosome.