Questions: What is meant by a phenotype ratio in a Punnett square? (1 point) the fraction of possible offspring that can be observed to have a trait the number of alleles in possible offspring the number of genes that are possible in offspring the fraction of possible offspring that contain a certain allele in their genes

What is meant by a phenotype ratio in a Punnett square? (1 point) the fraction of possible offspring that can be observed to have a trait the number of alleles in possible offspring the number of genes that are possible in offspring the fraction of possible offspring that contain a certain allele in their genes
Transcript text: What is meant by a phenotype ratio in a Punnett square? (1 point) the fraction of possible offspring that can be observed to have a trait the number of alleles in possible offspring the number of genes that are possible in offspring the fraction of possible offspring that contain a certain allele in their genes
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Solution

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The answer is the first one: the fraction of possible offspring that can be observed to have a trait.

Explanation for each option:

  • The first option, "the fraction of possible offspring that can be observed to have a trait," is correct. A phenotype ratio in a Punnett square refers to the ratio of different observable traits (phenotypes) that appear in the offspring. It is based on the combinations of alleles that result in visible characteristics.

  • The second option, "the number of alleles in possible offspring," is incorrect. This refers to the genetic makeup (genotype) rather than the observable traits (phenotype).

  • The third option, "the number of genes that are possible in offspring," is incorrect. This option is more related to the genetic composition rather than the observable traits.

  • The fourth option, "the fraction of possible offspring that contain a certain allele in their genes," is incorrect. This describes the genotype ratio, which focuses on the genetic makeup rather than the observable traits.

In summary, the phenotype ratio in a Punnett square is concerned with the observable traits of the offspring.

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