Table of Contents
- 1 What would happen if Mendel did not use true breeding plants?
- 2 What is true breeding and why is it important to Mendel’s experiments?
- 3 Why did Mendel use true breeding pea plants to start his experiments?
- 4 What did Mendel produce when he cross bred different true-breeding plants?
- 5 What did Mendel conclude from his experiments?
What would happen if Mendel did not use true breeding plants?
By experimenting with true-breeding pea plants, Mendel avoided the appearance of unexpected traits in offspring that might occur if the plants were not true breeding. The garden pea also grows to maturity within one season, meaning that several generations could be evaluated over a relatively short time.
What is true breeding and why is it important to Mendel’s experiments?
Why did Mendel use true breeding pea plants to start his experiments?
True-breeding pea plants were important to Mendel’s experiments because the true-breeding pea plants acted as the control group, meaning that Mendel used the true-breeding pea plants to compare the results of his cross-breeding pea plants. Without them, he would have nothing to compare his genetic variations to.
How did Mendel know if one of his pea plants was true breeding?
Mendel performed normal breeding of pea plants and observed only single trait at one time. He bred them with each other (F1 x F1) and continued their self pollination for several generations until no other trait showed up. This ensured him that the pea plants were true breeding.
Why did Mendel continued some of his experiments?
Why did Mendel continue some of his experiments to the F2 or F3 generation? To observe whether or not a recessive trait would appear. Traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1.
What did Mendel produce when he cross bred different true-breeding plants?
Mendel was able to select which plants pollinated other plants. Crosses between true-breeding plants with purple flowers produced true-breeding plants with only purple flowers. In crosses between hybrid plants with purple flowers, the ratio of purple flowers to white flowers was about 3:1.
What did Mendel conclude from his experiments?
Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Offspring therefore inherit one genetic allele from each parent when sex cells unite in fertilization.