Chapter 5 Review

Which of the following is not a correct component of the central dogma?

• protein = functional units

• rna = permanent message

• dna = information storage

• rna = temporary message

What are the 3 parts of a nucleotide?

• covalent bond, base, sugar

• phosphate, adenine, ribose

• phosphate, sugar, backbone

• phosphate, sugar, base

Adenine pairs with _______

How many hydrogen bonds are between A and T?

• 0

• 1

• 2

• 3

Guanine and cytosine are easier to pull apart because they have 3 hydrogen bonds between them.

• True

• False

Pick the correct statements below:

• introns = coding regions

• exons = coding regions

• introns = noncoding regions

• exons = noncoding regions

What is the correct order of the cell cycle?

• G1, M, G1, S

• G1, S, G1, M

• G1, G2, S, M

• S, G1, G2, M

What occurs during the S phase?

• Cell growth

• Cell division

• DNA replication

• Cell death

Why are chromosomes less compact in interphase?

• To allow access for protein expression & replication

• To prepare for cellular division and growth

• To enter prophase and divide into two daughter cells

• To prepare for nuclear replication

Where are the chromatids joined together in the middle?

• Telomere

• Centromere

• Centrosome

• Histone