Question

The grain colour of wheat is determine by the additive effects of two pairs of genes Accordingly the $F_2$ inhertance appears in the ratio of $15$ red ,$1$ white the fifteen red appear in different shades in the ratio of

• A. $9:3:3$
• B. $6:6:3$
• C. $1:4:7:3$
• D. $1:4:6:4$

Answer 1

The correct option is A $9:3:3$

The above case shows the incomplete dominance case. Incomplete dominance refers to a genetic situation in which one allele does not completely dominate another allele and therefore results in a new phenotype. This can be observed by the red color variation in the population.

So the correct option is '9:3:3'.