Question

The number of phenotypic and genotypic individuals produced during a typical Mendelian monohybrid cross will be ________ and ________} respectively.

• A. 2 and 2
• B. 3 and 2
• C. 2 and 3
• D. 3 and 3

Hint:

Phenotypes depend on visible traits, while genotypes depend on allele combinations.

Answer 1

The Correct Option is C

Step 1: Understanding monohybrid cross.
A monohybrid cross involves a single pair of contrasting traits controlled by a single gene.

Step 2: Phenotypic ratio.
In a typical Mendelian monohybrid cross, the phenotypic ratio in the F\textsubscript{2} generation is 3:1, representing two phenotypes (dominant and recessive).

Step 3: Genotypic ratio.
The genotypic ratio is 1:2:1, representing three genotypes (homozygous dominant, heterozygous, and homozygous recessive).

Step 4: Conclusion.
Hence, the number of phenotypes is 2 and the number of genotypes is 3.