An organism which receives identical alleles of a particular gene from both parents is called:

Mendel studied . . . . . . pure breeding traits of Pisum sativum.

In $Pisum$ $sativum$,there are $14$ chromosomes. How many pairs with different chromosomal composition can be prepared?

In a monohybrid cross of plants with red and white flowered plants,Mendel got only red flowered plants. On self-pollinating these $F_1$ plants,he got both red and white flowered plants in a $3:1$ ratio. Explain the basis of using $RR$ and $rr$ symbols to represent the genotype of plants of the parental generation.

Which of the following did Mendel select for his experiments?

Blue-flowered and white-flowered plants on crossing gave progeny of blue and white-flowered in the ratio of $60 : 40$. What ratio of blue and white is expected if the blue-flowered plants are self-pollinated?