Question

A Mendelian experiment consisted of breeding pea plants bearing violet flowers with pea plants bearing white flowers. What will be the result of $F_1$ progeny?

Answer 1

Hint: As we know John Gregor Mendel is the father of genetics. His laws of dominance, segregation, and independent assortment are basic rules of genetics although there is some exception. The law of dominance will help us find the answer.

Complete answer:

In the above picture, we can see that in a homozygous condition violet expresses itself over white traits. So in the $F_1$ generation, three out of four plants will have violet-colored flowers and one will have a white-colored flower as the white color trait is a recessive trait and expresses only in recessive homozygous condition.

Note: Autosomal dominant and recessive, sex linked dominant and recessive and y – linked inheritance follows Mendelian inheritance. Many genetic disorders such as neuroblastoma, hemophilia, cystic fibrosis, etc. follow Mendelian inheritance. There are some exceptions in Mendelian inheritance such as codominance, incomplete dominance, polygenic traits, mitochondrial etc.