mutations

How many chromosomes do cats have?

• 38

• 46

• 60

• 78

What refers to the change in DNA or genetic material of the cell, that may cause a difference in appearance or behavior?

This refers to the mutation that is a result of changes in a single gene.

• gene mutation

• chromosomal mutation

Point Mutation is an example of gene mutation.

• True

• False

This mutation involve changes in the number or structure of chromosomes.

• gene mutation

• chromosome mutation

What kind of chromosome mutation is seen in the diagram?

• Deletion

• Duplication

• Inversion

• Translocation

What kind of chromosome mutation is seen in the diagram?

• Deletion

• Duplication

• Inversion

• Translocation

The karyotype presented here shows a disorder due to nondisjunction of chromosome 21. This disorder is called Trisomy 21 or more commonly known as...

• Jacob’s syndrome

• Kleinfelter’s syndrome

• Patau syndrome

• Down syndrome

Polyploidy is the result of nondisjunction that occurs in 4 pairs of chromosomes at once.

• True

• False

The karyotype presented here shows a disorder due to the nondisjunction of the sex chromsome resulting to an XXY combination. What do you call this disorder?

• Jacob’s syndrome

• Kleinfelter’s syndrome

• Patau syndrome

• Down syndrome