DNA Replication and Structure

During DNA replication, the enzyme that adds complementary nucleotides to the new strand is called

• RNA Primer

• DNA Polymerase

• DNA Helicase

• Catalase

Which of the following units are repeatedly joined together to form a strand of DNA? (This is the MONOMER of DNA.) 

• nucleotides

• amino acids

• fatty acids

• polysaccharides

Nitrogenous bases are joined by which type of bond?

• polar bonds

• ionic bonds

• covalent bonds

• hydrogen bonds

Tags

NGSS.HS-LS1-1

During DNA replication, the enzyme that unzips the parent DNA is called

• RNA Primer

• DNA Polymerase

• DNA Helicase

• Catalase

When DNA is replicated, the result is

• old double helix and 1 new

• double helixes. Each with 1 old and 1 new strand

• double helix

• new double helixes

A segment of DNA is shown in the diagram below.

What is the structure labeled "X" in this diagram?

• Nucleotide

• Phosphate group

• Hydrogen Bond

• Deoxyribose

Tags

NGSS.HS-LS1-1

Label the picture in order:

• phosphate ; sugar ; base

• phosphate ; base ; sugar

• base ; sugar ; phosphate

• base ; phosphate ; sugar

DNA replication is ​ (a)   . Each side is used as a ​ (b)   . DNA ​ (c)   so when ​ (d)   takes places each new cell as an ​ (e)   copy.

• semiconservative

• template

• unravels

• mitosis

• identical

• meiosis

• nonidentical

Match the letter to the part.

a

b

c

d

e

Deoxyribose Sugar

Covalent Bond

Phosphate

Nitrogen Base

Hydrogen Bonds

Tags

112.42.c.7.A

strands of DNA run in an antiparallel fashion

• True

• False