Biology
Grade-8
Easy
Question
Fill in the missing alleles based on the given phenotype and genotype.
, 
, 
, 
, 
, , 
, 
, , - None of the above
, , , , , , , , , 
Hint:
Genotype of offspring is obtained by crossing the genes present in the left column with the genes in the upper row of the Punnett square.
The correct answer is: , , ,
- In a Punnett square, the upper row represents the alleles for male gametes.
- The left column represents the alleles for female gametes.
- In the given Punnett square, the cross between:
- RY & RY produces RRYY
- Ry & Ry produces RRyy
- ry & ry produces rryy
- ry & rY produces rrYy
- Hence, the correct option is RRYY, RRyy, rryy and rrYy.
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