BIOLOGY: Meiosis Review

The structure that holds two chromosomes together until they separate for cell division is the

• chromatid
• chromatin
• centromere
• cytoplasm

Tags

NGSS.HS-LS1-4

How many DNA molecules make up a chromosome?

• 1
• 2
• 23
• 46

Histones are 

• proteins wound up in DNA
• critical to maintaining the shape of chromosomes
• aid in the tight packing of DNA
• all of these 

Each identical side of a chromosome is the 

• centromere
• chromatin
• centriole
• chromatid

Chromosomes can always be seen in a cell

• True

• False

Answer explanation

remember they can ONLY be seen during division. At other times, the DNA needs to be accessible for replication & for protein synthesis!

Autosomes are

• chromosomes found in autotrophs, only
• chromosomes that automatically correct all errors in the DNA
• chromosomes that determine traits other than sex
• chromosomes that determine the sex of the individual

Chromosome Set 23 in humans are the....

• autosomes

• sex-determining chromosomes

• histones

• chromatin

Tags

NGSS.HS-LS3-1

Having XX chromosomes =

• egg-producing

• sperm-producing

Having XY chromosomes =

• egg-producing

• sperm-producing

Which of the following cell types is formed by meiosis?

• muscle cells
• skin cells
• sperm cells
• blood cells

Tags

NGSS.HS-LS3-2