Melanin Unit

What is a mutation?

• a random change in the DNA

• a random change in the amino acid chain

• an error that occurs when the mRNA is made

What amino acid corresponds to the following mRNA?

AGU

• Serine

• Valine

• Glycine

• Proline

This is the recessive disease pedigree. What is the genotype of the oldest male in generation II? (oldest is on the left)

• Rr

• RR

• rr

• R?

What does a filled in square represent?

• Not affected Female
• Not affected Male
• Affected Male
• Affected Female

This is a recessive disease pedigree. What is the genotype of the male in generation I?

• Rr

• RR

• R?

• rr

The process to go from mRNA to a protein is called

• Transcription

• Translation

• Replication

The process to go from DNA to mRNA is

• Transcription

• Translation

• Replication

In the punnett square shown, what must the genotype of the missing parent be?

• BB
• Bb
• bb
• Tt

Which organisms are most likely to survive?

• The strongest in the environment

• The fastest in the environment

• The most tame in the environment

• The best adapted to the environment

Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand:

GTAGTCA

• UATUAGA

• CAUCAGU

• ACGACTG

• CATCAGT