Karotypes

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

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

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 picture of paired chromosomes is a

• sister chromatid
• centromere
• syndrome
• karyotype

Chromosome pairs 1-22 are referred to as

• sex chromosomes
• sister chromatids
• a karyotype
• autsomes

A person with Turner syndrome has only one X chromosome. This means one of their gametes was missing a chromosome.
Which of the following is why gametes sometimes lack a complete chromosome?

• Incomplete dominance
• Nondisjunction
• Inversion mutation
• Substitution mutation

Trisomy:

• Missing 1 chromosome

• 3 chromosomes (instead of a pair)

• Chromosomes are normal