Meiosis

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.

• 23, 46
• 46, 23
• 2, 4
• 50, 100

What process, and which 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

Why do we need meiosis?

• To double the number of chromosomes going into sex cells
• To halve the number of chromosomes going into sex cells
• To triple the number of chromosomes going into sex cells
• To not change the number of chromosomes going into sex cells

Tags

NGSS.HS-LS3-2

A human zygote should have _____ chromosomes inside.

• 46
• 23
• 92
• 64

Tags

NGSS.HS-LS3-2

Chromosomes exchange genetic material during 

• crossing over
• replication
• synthesis
• translation

Tags

NGSS.HS-LS3-2

Crossing over helps promote 

• male genotype
• genetic variation
• DNA replication
• mitosis

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

When homologous chromosomes match up, they form a structure call a ___________.

• tetrad
• triad
• diploid
• gamete

Tags

NGSS.HS-LS3-2

The chromosomes that pair up during meiosis, are called __________ chromosomes.  

• homozygous 
• asexual
• homologous
• genes

Tags

NGSS.HS-LS3-2

Which of these cells would be produced through meiosis?

• skin cells
• liver cells
• brain cells
• sperm cells

Tags

NGSS.HS-LS3-2

The process of crossing over occurs in what phase of meiosis?

• anaphase 1
• prophase 1
• prophase 2
• telophase 1

Tags

NGSS.HS-LS3-2