every time when a tall pea plant nd a short pea plant interbreed then exactly 4 tall plants are produced >4 or <4 also possible? if no why?

Dear student.

Tall pea plant can have two genotype. Either TT or Tt.
The given cross can be represented as follows:

Here, all the offspring will be tall, i.e out of 4 offspring 4 will be tall.

Second case:

The genotype of heterozygous tall pea plant will be Tt and short pea plant will be tt. The cross between the two can be represented as:

Heterozygous tall pea plant genotype= Tt

Gametes= T & t

 Gametes  T  t
 T  TT (tall)  Tt (tall)
 t  Tt (tall)  tt (dwarf)

It is clear from the above cross that 3 offspring will be tall out of 4, and one will be dwarf.

Hope this information will clear your doubts about the topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.

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