Unit 7.1 DNA Structure and Replication

After replication, each strand has ​ (a)   new strand(s) and ​ (b)   old strand(s).

• one
• two
• zero

During interphase, what happens during the S phase?

• The cell grows

• The cell splits in two

• DNA replicates (makes a copy)

Which phase of the interphase does DNA replicate or make a copy of itself?

• G1 phase

• S phase

• G2 phase

What does DNA stand for?

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

Why is DNA important?

• it is very small and very complicated

• it's in everything

• it serves as the blueprint for making proteins in living organisms

• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

Name this structure

• double helix

• nucelotide

• twisted ladder

• hydrogen bond

Tags

NGSS.HS-LS1-1

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 organelle is DNA usually found in?

• cell membrane
• vacuole
• chloroplast
• nucleus

Tags

NGSS.MS-LS1-2

What determines the code, or instructions, within a DNA molecule?

• the shape (structure) of the nitrogen bases

• the order (sequence) of the nitrogen bases

• the color of the nitrogen bases

• the frequency (number) of nitrogen bases

What must be done with the DNA before a cell can go through division (mitosis)?

• DNA expression

• DNA replication

• DNA transcription

• DNA translation