DNA Structure

What is the full name for DNA

• Deoxynucleic Acid

• Deoxyribonuclear Acid

• Deoxyribonucleic Acid

• Denatured Ribonuclear Acid

Nucleotides, the building blocks of DNA, contain

• a deoxyribose, a phosphate group, and a nitrogen-containing base

• 2 nitrogen-containing bases

• a deoxyribose and a phosphate grop

• a deoxyribose and a nitrogen-containing base

Which nitrogen-containing base is not found in DNA?

• Adenine

• Thymine

• Cytosine

• Uracil

The nitrogen-containing base adenine always bonds with

• cytosine

• thymine

• guanine

• uracil

A gene is a section of a chromosome that codes for a specific

• protein

• amino acid

• trait

• organ

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Humans have _______ pairs of chromosomes.

• 46

• 23

• 12

• 24

Tags

NGSS.HS-LS3-1

The sugar found in DNA is

• Ribose

• Deoxyribose

• Glucose

• Galactose

The structure of a DNA molecules is called a

• twisted ladder

• single helix

• double helix

• spiral

Every chromosome has 2 _________________, one from the mother and one from the father

• alleles

• genes

• traits

• nitrogen-containing bases

Tags

NGSS.HS-LS3-1

The nitrogen-containing base cytosine always bonds to

• adenine

• uracil

• thymine

• guanine