Question

Mendel has observed Tallness as a dominant character in the garden pea plant.
Similarly, tongue rolling is a dominant character in man. In a group of 60 students,
45 can roll their tongue and 15 are non-rollers.
i) In the above context, calculate the percentage of dominant and recessive characters.

Answer 1

If in a strength of 60 students 45 can roll their tongue then the percent of students who can roll their tongues is (45/60)x100 and that is 75%.

If tongue rolling is considered as a dominant attribute then 75% of the students in this context possess that attribute.

The 15 non-rollers constitute 25% of the students.

Therefore, the percentage of non-rollers is 25%.

In this context, it is said that the non-rollers are non-dominant in nature and rollers are dominant in nature.

Answer 2

I hope this helps you ....