Chapter 3 Book 2

Question 1

Deoxyribonycleic acid; a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live

Answer 1

DNA

Question 2

In a nucleic-acid chain, a subunit that consists of a sugar, a phosphate, and a nitrogenous base

Answer 2

Nucleotide

Question 3

Ribonucleic acid, a molecule that is present in all living cells and that plays a role in proteins production

Answer 3

RNA

Question 4

A cell organelles composed of RNA and protein, the site of proteins synthesis

Answer 4

Ribosome

Question 5

A change in nucleotide-base sequence of a gene or DNA molecule

Answer 5

Mutation