Question

Tall (T) is completely dominant over dwarf (t). Red flower colour (R) is incompletely dominant over white (r), the heterozygote being pink. Plant having genotype of TtRr is self pollinated. What would be the proportion of plants with dwarf and pink characters in its progeny?

• A. $\frac{2}{16}$
• B. $\frac{1}{16}$
• C. $\frac{9}{16}$
• D. $\frac{3}{16}$

Answer 1

Answer: (A)

$\frac{2}{16}$

As Tall (T) is completely dominant over dwarf (t), then heterozygous Tt will also be tall.
As red (R) is incompletely dominant over white (r), then homozygous RR will be red, heterozygous Rr will be pink while homozygous rr will be white.

So, the correct answer is option (A).