Question 41
Mendelian InheritanceA yellow maize is planted and all the fruits obtained are of yellow seeds. When they are cross-bred, yellow seeds and white seeds are obtained in a ratio 3: 1. The yellow seed is said to be
- A.non-heritable
- B.sex-linked
- C.a recessive trait
- D.a dominant trait.
Show the answer and explanation
Answer: D (a dominant trait.)
Explanation
A 3:1 ratio in the offspring of two hybrids is Mendel's ratio: the trait that shows in 3 out of 4 (yellow) is dominant and white is recessive.