Unit 4 - Genetics

How many chromosomes do humans have?

• 23

• 92

• 46

• 184

Which of the following best describes a DNA molecule?

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

Tags

NGSS.HS-LS1-1

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

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

• AACGATA
• TTCGTTA
• CCTGATA
• TTCGATA

The process of making a copy of DNA is called

• transcription
• double helix
• DNA replication
• replication fork

Tags

NGSS.HS-LS3-2

Which process and type of resulting cells are represented?

• mitosis, gametes
• mitosis, body cells
• meiosis, gametes
• meiosis, body cells

Tags

NGSS.HS-LS3-2

NGSS.HS-LS1-4

Crossing over helps promote 

• male genotype
• genetic variation
• DNA replication
• mitosis

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

In RNA, Uracil pairs with ______. 

• cytosine
• adenine
• guanine
• thymine

Which of the following bases is found only in RNA?

• Adenine
• Guanine
• Thymine
• Uracil