DNA and Replication

Which of the following is not a component of a DNA nucleotide?

• deoxyribose sugar

• phosphate group

• ribose sugar

• nitrogen base

Which of the following is not a nitrogen base found in DNA?

• Thymine

• Uracil

• Guanine

• Adenine

• Cytosine

According to the complementary base pair rule, what does cytosine always pair with?

• adenine

• uracil

• thymine

• guanine

• uracil

What is the significance of the sequence (order) of the nitrogen bases in DNA?

• The order of the nitrogen bases determines the number of chromosomes present in an organism.

• The order of the nitrogen bases determines the traits that an organism will possess (have).

• The order of the nitrogen bases determines the gender of an organism.

• The order of the nitrogen bases determines whether an organism is living.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What is the twisted ladder shape of DNA known as?

• double helix

• triple helix

• single helix

• double felix

Assume that you have straight hair and your sibling (who has the same parents as you) has curly hair. What accounts for this difference?

• You have DNA and your sibling does not.

• Your sequence of nitrogen bases is different than your sibling.

• Your sibling was adopted.

• Your sibling has a genetic mutation.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How are the instructions for your traits stored on a DNA molecule?

• in the order of the nitrogen bases

• in the deoxyribose sugar

• in the bond between the phosphate and the sugar

• in the phosphate group

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What are the monomers of DNA called?

• nucleotides

• monosaccharides

• phosphates

• amino acids

What will the corresponding sequence be on a DNA strand that reads AAGCTAT?

• AACGATA

• TTCGTTA

• CCTGATA

• TTCGATA

In DNA, what does adenine always bond with?

• guanine

• thymine

• cytosine

• uracil

• another adenine