Question:
Which is an example of a molecular marker used in animal breeding?
Which is an example of a molecular marker used in animal breeding?
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Learn SNP and microsatellites — these buzzwords often appear directly!
Updated On: Jul 2, 2026
- Hemoglobin
- SNP
- Vitamin
- Enzyme
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The Correct Option is B
Approach Solution - 1
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.
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Approach Solution -2
Category Check: A molecular marker must be a DNA-level feature that can be genotyped, not a protein or biochemical.
Of the four options, only SNP (Single Nucleotide Polymorphism) is a DNA sequence variation — it fits the category by definition and is the most widely used marker in Marker-Assisted Selection.
Hemoglobin, vitamins, and enzymes are all biochemical molecules measured in blood/tissue, not DNA markers used for genotyping.
Of the four options, only SNP (Single Nucleotide Polymorphism) is a DNA sequence variation — it fits the category by definition and is the most widely used marker in Marker-Assisted Selection.
Hemoglobin, vitamins, and enzymes are all biochemical molecules measured in blood/tissue, not DNA markers used for genotyping.
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