Mutations and Karyotypes

Karyotypes

Genetics

When do you think the picture is taken in the cell cycle?

Multiple Choice

Which phase of the cell cycle is when scientists take a picture to construct a karyotype?

• Interphase

• Prophase

• Metaphase

• Anaphase

Multiple Choice

The karyotype diagram below represents a human female with the genetic disorder known as Turner syndrome. Chromosomal analysis of this karyotype reveals the mutation is a result of

• a missing X chromosome

• a missing Y chromosome

• an extra 21 chromosome

• missing chromosome #9

Multiple Choice

The karyotype diagram below represents a human male. Chromosomal analysis of this karyotype reveals the abnormality in this karyotype is:

• a missing X chromosome

• a missing Y chromosome

• an extra 21 chromosome

• missing chromosome #9

Multiple Select

Homologous pairs:

(select all that apply)

• Have the same genes on them

• May have different alleles

• Each comes from one parent

• Combine to give you your genotypes

Multiple Choice

Do homologous chromosomes always look identical?

• Yes, same everything (shape, size, position, and bands)

• No, not quite (different positions but same band patterns and similar size)