Understanding Chromosomal Analysis

What is the primary reason lymphocytes are used in karyotyping?

• They are resistant to chemical treatments.

• They contain more chromosomes than other cells.

• They divide frequently and are easy to obtain.

• They are the largest cells in the body.

What is the purpose of adding a drug to halt mitosis during chromosomal analysis?

• To speed up the division process.

• To change the color of the chromosomes.

• To make the chromosomes more visible.

• To prevent the cells from dying.

Why are lymphocytes treated with a hypotonic solution during karyotyping?

• To shrink the cells for easier handling.

• To change the genetic material.

• To dissolve the cell membrane.

• To swell the cells and separate chromosomes.

What is the role of staining in the chromosomal analysis process?

• To protect the chromosomes from damage.

• To speed up the cell division process.

• To alter the genetic material.

• To make the chromosomes visible under a microscope.

How can karyotyping help in identifying Down Syndrome?

• By measuring the size of the chromosomes.

• By analyzing the color of the chromosomes.

• By detecting the presence of three chromosome 21s.

• By counting the number of chromosomes.