Ch. 3 Life Science Quiz A

The shape of a DNA molecule can be described as a ________.

• loop-de-loop

• sea star

• twisted ladder

In a DNA molecule, adenine always pairs with ______.

• cytosine

• guanine

• thymine

• uracil

In a DNA molecule, guanine always pairs with ______.

• cytosine

• guanine

• thymine

• adenine

Each nucleotide is made up of three parts: a sugar, a phosphate, and a base.

• True

• False

Changing the order of a nucleotide in DNA leaves the protein that is built unaffected as long as the same nucleotides are present.

• True

• False

Tags

NGSS.HS-LS1-1

A chromosome is a section of DNA that codes for a unique protein.

• True

• False

Tags

NGSS.HS-LS1-1

There are _______ different kinds of bases found in DNA.

• 2

• 3

• 4

• 5

A section of the DNA that codes for unique kind of proteins is called a _______.

• gene

• phosphate

• adenine

• nucleotide

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Does Mrs. Leamon collect insects and other things of nature in her classroom?

• yes

• no

_______ is a kind of nucleic acid that stores the information needed to make cells.

• DNA

• RNA

Tags

NGSS.HS-LS1-1