Question : A cross between homozygous recessive and heterozygous plant is
Option 1: Black cross
Option 2: Test cross
Option 3: Monohybrid cross
Option 4: Dihybrid cross
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Correct Answer: Test cross
Solution : The correct option is test cross.
A test cross is a genetic cross made between a heterozygous plant and a homozygous recessive plant for a certain trait. The characteristic (rr) contains two recessive alleles in Homozygous Recessive Plant. It will always yield recessive allele (r) gametes.For the same characteristic (Rr), heterozygous Plan contains one dominant allele and one recessive allele. It will generate two types of gametes: those with the dominant allele (R) and those with the recessive allele (r). When a homozygous recessive plant is crossed with a heterozygous plant, if the dominant trait is present in all progeny, the dominant-expressing plant is most likely heterozygous.
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