Question

Which is an example of a molecular marker used in animal breeding?

• A. Hemoglobin
• B. SNP
• C. Vitamin
• D. Enzyme

Hint:

Learn SNP and microsatellites — these buzzwords often appear directly!

Answer 1

The Correct Option is B

Molecular markers are identifiable DNA sequences used to locate genes linked with important traits. SNPs (Single Nucleotide Polymorphisms) are the most common and widely used markers in animal genetics. They help in Marker-Assisted Selection (MAS) to select animals with desired traits like higher milk yield or disease resistance. Other markers include microsatellites. These markers make selection more accurate than just physical appearance.