Karyotyping

A)shows chromosomes as they appear in metaphase of meiosis II.

B)examines points of crossing over.

C)reveals the results of independent orientation of chromosomes during meiosis I.

D)can reveal alterations in chromosome number.

E)reveals the presence of cancerous genes.

D) can reveal alterations in chromosome number.

Explanation:

The karyotype is used to look for abnormal numbers or structures of chromosomes.

Karyotypes are prepared using standardized staining procedures that reveal characteristic structural features for each chromosome.

d.

explanation: