Biology 8.3: Karyotypes and Chromosomal Mutations

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

• female
• male

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

• female
• male

Which structure is labeled as A in the diagram?

• Centromere
• Chromosome
• Sister chromatids

Which structure is labeled as B in the diagram?

• Centromere
• Chromosome
• Sister chromatids

Which structure is labeled as C in the diagram?

• Centromere
• Chromosome
• Sister chromatids

What is the structure that holds the sister chromatids together called?

• homologous chromosome
• centromere
• chromatid
• nondisjunction

When chromosomes fail to separate correctly during anaphase of meiosis, what can occur?

• extra chromosomes are found in the sex cell
• chromosomes of the sex cell are doubled
• chromosomes of the sex cell are halved
• meiosis never completes

Nondisjunction can result in 

• trisomy conditions
• monosomy conditions
• additional sex chromosomes
• all of these

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

A sperm contains

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