Suppose you observed 240 progeny that resulted from a monohybrid cross and involved genes that obeyed Mendelian inheritance, how many heterozygous progeny would you expect to observe?

Respuesta :

Answer:

120

Explanation:

If there is a monohybrid cross that involved genes that obeyed Mendelian inheritance this means that parental generation includes two true breed parents (both homozygous but with different genotype).

If we name the gene with A:

P: AA  x  aa

F1: Aa Aa Aa Aa

F2: AA Aa Aa aa

Half of them will be heterozygous, it means 120.

Answer:

The correct answer is 120 progeny.

Explanation:

When only one pair of genes is crossed with the other pair is called a monohybrid cross.

In a monohybrid cross, the genotypic ratio is 1:2:1. It signifies the ratio of all possible outcomes of the cross.

Therefore, the number of a heterozygous pair is half of the offspring which is 120.

The number of plants is as follows:- 60: 120: 60

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