DNA Replication and Structure

What are the components of a DNA nucleotide? (Mark all that apply)

• Deoxyribose

• Ligase

• Nitrogen Base

• Phosphate group

• Ribose

What will the matching sequence be on a strand that reads AAGCTAT?

• AACGATA

• TTCGTTA

• CCTGATA

• TTCGATA

How many different nitrogen bases are found in DNA?

• 4

• 2

• 6

• 8

What makes up the SIDES of a DNA ladder?

• nitrogen bases

• sugars & phosphates

• genes & chromosomes

• RNA

Tags

NGSS.HS-LS1-1

DNA replication results in

• 2 completely new DNA molecules

• 2 DNA molecules that each contain a strand of the original

• 1 new DNA molecule and 1 old

• 1 new molecule of DNA

In which phase of the cell cycle does DNA replication happen?

• Mitosis

• Meiosis

• Cytokinesis

• Interphase

Which nitrogen base is ONLY in DNA?

• Thymine

• Adenine

• Guanine

• Uracil

The monomers (building blocks) of DNA are called

• nitrogen bases

• nucleotides

• sugar

• phosphates

The sugar found in DNA is called?

• Ribose

• Glucose

• Deoxyribose

• Sucrose

The nitrogen bases are held together by

• weak hydrogen bonds

• sugar

• phosphate

• nitrogen bases