DNA Replication

Why is DNA important?

• It is very small and very complicated.

• It is in everything.

• It serves as the blueprint for traits of all living things.

• We need to eat it every day for energy.

Which of the following best describes a DNA molecule?

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

Tags

NGSS.HS-LS1-1

Which of the following units are repeatedly joined together to form a strand of DNA? (These are the monomers of DNA.)

• amino acids

• nucleotides

• fatty acids

• polysaccharides

Adenine bonds with _____.

• guanine

• thymine

• cytosine

• adenine

Guanine bonds with _____.

• adenine

• guanine

• cytosine

• thymine

After DNA is "unzipped", which enzyme is responsible for adding nucleotides to the exposed nitrogen bases?

• topoisomerase

• DNA polymerase

• ligase

• primase

A process in which DNA has the unique ability to make an exact copy of itself.

• replication

• translation

• transcription

• crossing over

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

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

Which organelle is DNA usually found in?

• cell membrane

• vacuole

• chlorophyll

• nucleus

Nitrogenous bases are joined to one another by which type of bond?

• polar bonds

• ionic bonds

• covalent bonds

• hydrogen bonds

Tags

NGSS.HS-LS1-1