DNA Structure, Function, and Replication

What kind of molecule is DNA?

• carbohydrate

• lipid

• protein

• nucleic acid

Tags

NGSS.HS-LS1-1

What does DNA stand for?

• dextrose nucleic acid

• double nucleic acid

• deoxyribonucleic acid

• dinucleic acid

Tags

NGSS.HS-LS1-1

What is the monomer (building block) of a DNA molecule?

• fatty acid

• nucleic acid

• nucleotide

• amino acid

Tags

NGSS.HS-LS1-1

What sugar is found in a nucleotide of DNA?

• glucose

• dextrose

• ribose

• deoxyribose

What is the principal enzyme involved in DNA replication

• glucose

• fructose

• DNA Polymerase

• Lactase

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

If a strand reads:
3' A A A T T T C 5'
The matching strand would read...

• 5' T T T A A A G 3'

• 3' T T T A A A G 5'

• 5' A A A T T T C 3'

• 3' U U U A A A G 5'

You are given the DNA strand 5'ATGCTCAGCTGA3'. What is the corresponding DNA strand?

• 5'UACGAGUCGACU3'

• 5'TACGAGTCGACT3'

• 3'UACGAGUCGACU5'

• 3'TACGAGTCGACT5'

What makes up the "backbone" of a single DNA strand?

• phosphate and sugar

• sugar and nitrogenous base

• phosphate and nitrogenous base

• ribose and deoxyribose

Tags

NGSS.HS-LS1-1

What kind of bonds help hold together the sugar-phosphate backbone of a DNA strand?

• covalent bonds

• hydrogen bonds

• ionic bonds

Tags

NGSS.HS-LS1-1