Question

A pea plant homozygous for yellow round seed is crossed with the recessive parents and help of checker board

Answer 1

I hope this helps you ..... please ask if any doubts relating to genetics

Answer 2

Cross between yellow round and recessive plants

Explanation:

• When we see the phenotype of the two types of progeny we find that both the types have the seed colour yellow while approximately 50% of them have round seed type while the other 50% have wrinkled seed type. So, the pea plant with yellow and round seeds must be homozygous for yellow seed colour (YY) while it must be heterozygous for the round seed type (Rr).  

• So, the genotype of the plant with yellow and round seed is YYRr.  Seed colour: Yellow is dominant, green is recessive.and seed type: Round is dominant, wrinkled is recessive.