Which of the following would be least likely to happen as a result of a mutation in a person's skin cells?

• skin cancer
• reduced functioning
• no change in functioning
• person's offspring have mutated skin

Which series is arranged in order from largest to smallest in size?

• chromosome, nucleus, cell, DNA, nucleotide
• cell, nucleus, chromosome, DNA, nucleotide 
• nucleotide, chromosome, cell, DNA, nucleus
• cell, nucleotide, nucleus, DNA, chromosome

X rays, UV light & radioactive substances that can change the chemical nature of DNA are classified as __.

• growth regulators
• metamorphic molecules
• hydrolytic enzyme
• mutagens

A DNA segment is changed from - AATTAG - to - AAATAG -. This is a __.

• frameshift mutation
• point mutation
• inversion
• deletion

Messenger RNA is formed in the process of __.

• transcription
• translation
• replication
• mutation

An RNA molecule is a polymer composed of subunits known as __.

• polysaccharides
• ribose molecules
• nucleotides
• uracil

The backbone of a DNA molecule is made of which two components?

• phosphate & ribose
• deoxyphosphate & ribose
• phosphate & deoxyribose 
• deoxyphosphate & deoxyribose

Which one of the following nucleotide pair bonds would be found in a DNA molecule?

• adenine-guanine
• guanine-cytosine
• adenine-cytosine
• cytosine-uracil

A DNA segment is changed from -AATTAGAAATAG- to -ATTAGAAATAG-. That is a __.

• frameshift mutation
• point mutation
• inversion
• translation

Pyrimidine

• guanine
• thymine
• phosphate
• nucleotide