To determine the best description of inheritance based on the provided options, we need to understand the concepts of alleles, homozygosity, and heterozygosity.
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An allele for eye color was inherited from only one parent.
This statement would be true if the offspring has only one allele represented for eye color on the chromosome pair, which would not provide a complete picture, as traits typically are determined by alleles from both parents. -
An allele for hair type was inherited from only one parent.
Similar to the first statement, this would imply that there is only one allele for hair type present, which is not common because traits are usually influenced by alleles from both parents. -
The offspring is homozygous for eye color.
This would be true if both alleles for eye color are the same (for example, both are blue). -
The offspring is homozygous for hair type.
This would be true if both alleles for hair type are the same.
Without seeing the actual diagram and how the alleles appear for the offspring with respect to both traits, we cannot definitively say which statement is correct. However, if the diagram shows two identical alleles for either eye color or hair type, then the statements regarding homozygosity for that trait could be accurate.
In summary, if the diagram indicates that both alleles for eye color (or hair type) are identical, then "The offspring is homozygous for eye color" or "The offspring is homozygous for hair type" would be the correct answer, depending on which trait shows homozygosity. If not, then the first two statements about inheritance from only one parent would be more appropriate.