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Topic: Deviations: incomplete dominance, co-dominance, multiple alleles, blood groups, pleiotropy, polygenic inheritance· Genetics and Evolution

A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?

1. Red, Pink as well as white flowered plants

2. Only red flowered plants

3. Red flowered as well as pink flowered plants

4. Only pink flowered plants

1 answer

Best answer

Answer: 3. Red flowered as well as pink flowered plants

Key idea: Snapdragon shows incomplete dominance: RR is red, Rr is pink, rr is white.

Pink (Rr) \(\times\) red (RR) gives \(\frac12\) RR (red) and \(\frac12\) Rr (pink). So progeny are red and pink in a 1 : 1 ratio, and no white plants appear.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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