Question

what can be known about mendels five - part hypothesis?
it is an answer to a scientific question and is based mostly on his research.
it identifies three alleles for each gene.
it is an answer to a scientific question and is based on publications on genetics.
it identifies one allele for each gene.

Explanation:

To determine the correct option about Mendel's five - part hypothesis:

1. Recall Mendel's work: Mendel's hypothesis was developed from his own experimental research (cross - breeding pea plants) to answer scientific questions about inheritance.
2. Analyze each option:

• Option 1: "It is an answer to a scientific question and is based mostly on his research." This matches Mendel's process as he conducted experiments (his own research) to answer questions about heredity.
• Option 2: Mendel's hypothesis identified two alleles for each gene (dominant and recessive), not three. So this option is incorrect.
• Option 3: Mendel's work was based on his own experiments, not on existing publications on genetics (as the field of genetics was in its infancy and his work was pioneering). So this option is incorrect.
• Option 4: Mendel's hypothesis identified two alleles (dominant and recessive) for each gene, not one. So this option is incorrect.

Answer:

A. It is an answer to a scientific question and is based mostly on his research.