Karyotypes

A normal human has ___ pairs of autosomes and ___ pair(s) of sex chromosomes.

• 23,1
• 22,1
• 1, 22
• 1, 23

The X and Y chromosomes are known as the ___ chromosomes.

• sex
• autosome
• biological
• genetic

In humans, chromosome # ___ is the largest.

• 1
• 10
• 22
• 23

Most sex linked genes are on the ____ chromosome.

• X
• Y
• 1
• 22

____ are chromosomes that contain genes for characteristics unrelated to sex.

• autosomes
• microsomes
• cosmos
• inheritance 

Genes that are critical to life are found on the Y chromosome.

• True
• False

Females have ____ and males have _____ chromosomes.

• XX, XY
• XY, XX
• XX, XX
• XY, XY

Tags

NGSS.HS-LS3-1

A person with extra 21st chromosome exhibits what genetic disorder?

• hemophilia
• heterogeneity 
• down syndrome
• dwarfism

Chromosomes 1-22 in humans which contain genes for characteristics unrelated to sex.

• autosomes
• genome
• X-linked gene
• clone

Down syndrome is caused by

• a deletion

• a translocation

• an inversion

• an extra chromosome (aneuploidy)

Tags

NGSS.HS-LS3-2