DNA

How many chromosomes do human cells have?

• 2

• 23

• 46

• 38

Tags

NGSS.HS-LS3-1

Adenine bonds with

• Cytosine

• Thymine

• Guanine

• Adenine

What are the nucleotides made of?

• Sugar, Phosphate, nitrogen base
• Phosphate, Adenine, nitrogen base
• Thymine, Adenine, Cytomine
• Phosphate, Nitrogen, Adenine

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate

The shape of the DNA molecule is a double __________________?

• "S"
• helix
• rope
• curve

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

The four bases of DNA are

• Thymine, Adenine, Cortisol, and Medinine

• Thymine, Guanine, Adenine, and Cytosine

• Cytosine, Adenine, Medinine, and Thymine

• Adenine, Guanine, Cortisol, and Medinine

Which shows the correct complementary base pairing for DNA?

• C-A, T-G
• A-G, C-T
• C-G, U-A
• T-A, G-C

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

The two strands of nitrogenous bases in DNA are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds