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In Mendelian dihybrid cross, when a heterozygous pea plant with round yellow seeds is selfed, offsprings with round green seeds are produced. They are represented by the genotypes
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A RrYy, RrYY, RRYy
  • B Rryy, RRyy, rryy
  • C rrYy, rrYY
  • D Rryy, RRyy
Solution:
2568 Upvotes Verified Answer
The correct answer is: Rryy, RRyy
The Dihybrid cross is when two pairs of contrasting characters are crossed between homozygous members for those characters.

Self-crossing of pea plant heterozygous for round and yellow seeds will give the following progenies -

RY Ry rY ry
RY RRYY RRYy RrYY RrYy
Ry RRYy RRyy RrYy Rryy
rY RrYY RrYy rrYy rrYy
ry RrYy Rryy rrYy rryy


Round seeds have the genotype - RR/Rr

Green seeds have geotype - yy

Seeds with round shape and green colour genotype - Rryy/RRyy.

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