DNA and Protein Synthesis

A nucleotide consists of:

• a base and an amino acid

• a nitrogen base and a sugar

• a nitrogen base, sugar, and phosphate

• two nitrogen bases, a sugar, and a phosphate

A DNA strand has the following bases: A A G C C A. What are the bases on its complimentary strand?

• A A G C C A

• A C C G A A

• T T C G G T

• C C A T T C

The sugar in RNA is _____, the sugar in DNA is _______

• deoxyribose, ribose

• ribose, deoxyribose

• ribose, phosphate

• ribose, uracil

Which of the following is found on RNA but not DNA?

• uracil

• deoxyribose

• phosphate

• adenine

Given the following DNA strand, which of the following is its complementary mRNA? G G A C T G A T T

• C C T G A C T A A

• C C U G A C U A A

• G G A C T G A T T

• T T A G T C A G G

Adenine always pairs with:

• thymine

• guanine

• cytosine

• adenine

The process by which an mRNA copy is made from DNA:

• translation

• transcription

• replication

• homeostasis

The twisted ladder shape of DNA is called a:

• nucleus

• cell membrane

• double membrane

• double helix

The DNA molecule is held together by:

• peptide bonds

• hydrogen bonds

• nitrogen bonds

• glucose bonds

RNA differs from DNA in that:

• it is double stranded

• it has deoxyribose sugar

• it has uracil

• it has thymine