Meiosis

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

• homozygous 
• asexual
• homologous
• genes

Tags

NGSS.HS-LS3-2

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

• tetrad
• triad
• diploid
• gamete

Crossing over helps promote 

• male genotype
• genetic variation
• DNA replication
• mitosis

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

What is another reason we need meiosis?

• So the offspring has genes from both parents
• So the offspring has genes from one parent
• So the offspring has genes from neither parents
• So the offspring makes its own genes

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

Chromosomes exchange genetic material during 

• crossing over
• replication
• synthesis
• translation

The cells produced via meiosis are called:

• sex cells
• somatic cells
• body cells
• skin cells

This produces 2 identical cells.

• mitosis
• meiosis

A human body cell usually has xx amount of chromosomes.

• 6
• 22
• 4
• 46