Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question
Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation5 Marks
Question
Explain why a recessive allele is unable to express itself in a heterozygous state.
✓
Answer
The alleles are present on homologous chromosomes.
The recessive allele does not code for its product or codes for a defective product.
The other allele remains normal and thus expresses itself.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.