Question

The technique with “sephadex gel column” is used to

• A. separate the sperms with y chromosome from the sperms containing x chromosome.
• B. culture the cancerous cells (malignant).
• C. filter blood during dialysis.
• D. amplify a piece of DNA through PCR technique.

Answer 1

The correct option is A

separate the sperms with y chromosome from the sperms containing x chromosome.

Sephadex gel column finds application in the selective artificial insemination, in which the sperms with y chromosome being lighter are trapped in the gel while the sperms with x chromosome being heavier reaches the bottom of the column and used for artificial insemination.