Genetics Test Prep

What are the 3 parts of a DNA nucleotide? (Check all that apply)

• phosphate group
• deoxyribose sugar
• nitrogen base
• mRNA
• amino acid

Which of the following are ways that DNA differs from RNA? (mark three answers)

• the number of strands
• the type of sugar
• the bases used
• the number of bases

Which of the following are possible bases found in DNA? (choose four)

• cytosine
• thymine
• adenine
• uracil
• guanine

In the double helix shape of the DNA molecule, the rungs of the ladder are made of

• nitrogen bases.
• deoxyribose sugar.
• phosphate groups.
• amino acids.

A set of three nitrogen bases on an mRNA strand is called a(n)

• codon
• anticodon
• nucleotide
• amino acid

The process of forming an RNA strand from a DNA strand is called

• replication
• transcription
• translation
• mutation

The type of RNA that carries / transfers an amino acid on one side is called

• tRNA
• mRNA
• cRNA
• rRNA

Which of the following is a complementary DNA strand for this one: TACTGG

• TACTGG
• ATGACC
• UACUGG
• AUGACC

What is the tRNA anticodon for this codon: AUG?

• UAC
• AUG
• TAC
• Met

A long string of amino acids together is called a

• peptide bond.
• polypeptide chain.
• triploid.
• ribosome.