DNA, Genes, & Chromosomes

What is known as the blueprint or code of life and is the ultimate source of genetic information for the cell?

• genes

• DNA

• chromosomes

• genome

Different orders of nitrogenous bases on the nucleotides code for different proteins.

• true

• false

What are all other chromosomes that do not determine sex?

• sex chromosomes

• autosomes

DNA replication results in 2 _____________ DNA molecules.

• identical

• similar

• different

Can DNA leave the nucleus?

• yes

• no

What enzyme unzips DNA for DNA replication?

• DNA helicase

• RNA polymerase

• ribosomal RNA

• anticodon

When, in the cell cycle, is DNA replicated or copied?

• interphase

• prophase

• anaphase

• metaphase

What do you call the entire genetic makeup of an organism?

• genome

• chromosome

• DNA

• gene

The number of chromsomes depends on the type of organism.

• true

• false

What do you call the pair of chromosomes in an organism that determines the sex of the organism?

• sex chromosomes

• autosomes