Question

A purebred tall pea plant is cross-pollinated with a tall, heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita

recessive short allele. (I point)
75%
25%
0%
50%

Answer 1

The correct answer is - 25%.

Step-by-step explanation:

A cross pollination between purebred tall pea plant and a heterozygous pea plant occurred as per the given condition. TT is the allele representation of the purebred plant and heterozygous plant is represented by Tt, so the gametes will be formed would be - T & T and T & t allele.

The Punnett square of this cross is attached with the answer,

So the probability of short allele would be:

= (2/8) *100 , (where 2 is the number of short allele in offspring where 8 is total number of alleles)

= (1/4) *100

= 25%