DNA

A nucleotide consists of

• DNA

• adenine and thymine

• A phosphate, sugar and nitrogenous base

• genes

A gene is

• a section of DNA

• a chemical found in the nucleus of cells

• contains instructions for building a protein

• all of the above

In a DNA molecule, nucleotides are linked together to make up a single strand of DNA then bonded to a second strand. This structure is known as a

• RNA

• double helix

• watson-crick

• double nucleotide

In a double strand of DNA, the nitrogen bases only pair in a certain combination. Which combination is correct?

• A-C and T-G

• C-T and A-G

• A-T and G-C

• A-A C-C

A stand of DNA contains the following bases AGCTATAC

What would be the bases on the complementary strand?

• AGCTATAC

• TCGATATG

• TGCTTATG

• CTAGCGCT

In a strand of DNA, if it contains 20% of Thymine, then how much Guanine would be present?

• 30%
• 20%
• 80%
• 10%

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Tags

CCSS.RI.8.7

CCSS.RI.9-10.7

CCSS.RL.7.7

CCSS.RL.8.7

CCSS.RL.9-10.7