Biology
Grade-10
Easy

Question

In Igf2 gene in mice, only ______________ allele is expressed.

  1. Maternal

  2. Paternal

  3. Both

  4. None of the above

hintHint:

Paternal

The correct answer is:

Paternal


    Igf2 is a growth factor expressed in most normal tissues, solely from the paternal allele.
    Igf2 protein is a growth factor particularly important during pregnancy, where it promotes both foetal and placental growth and also nutrient transfer from mother to offspring via the placenta.

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