Question

will seeds from tall plants always produce tall plants???

Answer 1

Tallness of plants is governed by the dominant Gene over the gene causing dwarfness.As because Genotype of a tall plant can either be homozygous TT or heterozygous Tt:- And Genotype of dwarf plants can only be tt,So there will be three situations 1.When TT (tall plant) is crossed with tt (dwarf plant) all plants will be tall. Situation 2.When Tt(tall plant ) is crossed with tt(dwarf plant), only 50% of plants will be tall,other 50% will be dwarf. Situation 3.When Tt plants (tall plants) are crossed with Tt plants (tall plants),the offsprings will be 75% tall and 25% dwarf. So by seeing 2nd and 3rd situations, we can say,SO, SEEDS OF TALL PLANTS WILL NOT ALWAYS PRODUCE TALL PLANTS........

Answer 2

Explanation:

1. No ,tall plants may or may not produce tall plants again

2. This is because tallness is a dominant character in most of the plants especially in peas.

3. so tall plants may be homozygous tall (TT) or heterozygous tall(TT).

4. If the parental plant is homozygous tall ( pure breed) ,then they always produce.

5. If the parental plant heterozygous tall plants,then they produce the tall and dwarf plants in the ratio of 3:1