Meiosis

What causes genetic variation in meiosis?

• chromosomes lining up
• crossing over of chromosomes
• separation of chromosomes
• chromosomes pulling apart

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-LS1-4

Which process is necessary for the inherited traits of an organism to be passed along by sexual reproduction?

• mitosis
• meiosis
• mutation
• fission

Tags

NGSS.HS-LS3-2

Which statement correctly describes meiosis?

• Cells divide only once.
• Meiosis does not occur in reproductive cells.
• The cells produced at the end of meiosis are genetically identical to the parent cell.
• The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell.

Which best describes the process shown?

• nondisjunction
• mitosis
• independent assortment
• crossing over

Tags

NGSS.HS-LS3-2

NGSS.HS-LS1-4

If an intestinal cell in a butterfly contains 24 chromosomes, a butterfly egg would contain ____ chromosomes.

• 3
• 6
• 12
• 24

Body cells of fruit flies contain 8 chromosomes.  Scientists used studies of flies to discover how egg and sperm are formed. What did they observe?

• Body cell of offspring flies have 16 chromosomes.
• Sperm cells have 8 chromosomes.
• Egg cells have 4 chromosomes.
• Body cells of offspring have 4 chromosomes.

Tags

NGSS.HS-LS3-2

A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?

• 20
• 40
• 80
• 160

Tags

NGSS.HS-LS3-1

The haploid number of chromosomes for humans is ____.

• 46
• 43
• 23
• 26

Tags

NGSS.HS-LS3-2

How many times in meiosis does the cell divide?

• 2
• 4
• 3
• 1