Chromosomes and Karyotypes

Determine the sex of the individual whose karyotype is displayed in the image.

• female
• male

Which structure is labeled as B in the diagram?

• Centromere
• Chromosome
• Sister chromatids

Tags

NGSS.HS-LS3-1

NGSS.HS-LS1-4

A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called

• sister chromotids
• centromeres
• homologous chromosomes
• autosomes

Tags

NGSS.HS-LS3-1

A sperm contains

• Both an X and a Y chromosome
• Two X chromosomes
• An X OR a Y chromosome
• only a Y chromosome

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An egg contains

• 22 autosomes and an X chromosome
• 22 autosomes and an Y chromosome
• 44 autosomes and 2 X chromosomes
• 44 autosomes and an X and a Y chromosome

Tags

NGSS.HS-LS3-1

What makes this individual's karyotype not normal?

• An extra sex chromosome
• An extra autosome
• A missing sex chromosome
• A missing autosome

Tags

NGSS.HS-LS3-2

What is the sex of this individual?

• female
• male

Tags

NGSS.HS-LS3-1

Down's syndrome occurs because of a(n)

• missing sex chromosome
• extra sex chromosome
• additional 21st chromosome
• additional 18th chromosome

Tags

NGSS.HS-LS3-1

Chromosome pairs 1-22 are referred to as

• sex chromosomes
• sister chromatids
• a karyotype
• autsomes

A photograph or picture of chromosomes grouped in ordered pairs is called a.....

• Pedigree

• Chromosome chart

• Mitotic index

• Karyotype