Unit 6 Review

A Nucleotide is shown above. What part of the Nucleotide is labelled "3"?

• Sugar

• Phosphate

• Nitrogenous Base

Answer explanation

The correct choice is Nitrogenous Base because label '3' in the Nucleotide represents the Nitrogenous Base, which is a key component of a nucleotide.

A segment of DNA is shown in the diagram. Which of these identifies the part of the DNA segment labeled X?

• Nucleotide

• Phosphate group

• Hydrogen bond

• Deoxyribose

Tags

B.6(A)

What is the monomer of DNA?

• Amino Acid

• Sugar

• Nucleotide

• Fatty Acid

What three components are in every nucleotide?

• Sugar, Fat, Protein

• Sugar, Phosphate Group, Nitrogenous Base

• Sugar, Amino Acid, Sulfur

• mRNA, tRNA, and rRNA

Which of the following is an accurate feature of DNA?

• Double stranded

• Base-phosphate backbone

• Parallel

• ribose sugar

Answer explanation

DNA has a:

sugar phosphate backbone

is antiparallel

has deoxyribose sugar

Which enzyme prevents supercoiling in DNA replication?

• Helicase

• Ligase

• Primase

• Topoisomerase

What enzyme adds the primer in DNA replication?

What enzyme connects okazaki fragments together?

What direction can DNA polymerase move?

• Forward and backward

• It can only add to the 3' end of the strand it's creating

• It can only add to the 5' end of the strand it's creating

• It moves parallel to the 3' end of the template strand

Which strand must be made in Okazaki fragments during DNA replication?