What percentage of the offspring (children) in the F1 generation are affected by the trait?

To determine the percentage of offspring in the F1 generation that are affected by a trait, we need to consider the genetic cross involved (for instance, a monohybrid cross).

– If we have a dominant trait (A) and a recessive trait (a), and we cross two heterozygous parents (Aa x Aa), we would have the following genotype ratios:

– AA: 25%

– Aa: 50%

– aa: 25%

In this case, the offspring that show the dominant trait (AA and Aa) would be 75% (25% + 50%).

So, if this is a typical monohybrid cross with one dominant trait, the correct answer would be 75%.

Answer: 75%

Explanation: In a typical monohybrid cross of heterozygous parents (Aa x Aa), 75% of the offspring would exhibit the dominant trait.