
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
The sex differentiation of the pistil in a certain plant is controlled by two pairs of independently inherited alleles. When the dominant genes B and E are both present, the plant produces bisexual flowers, which is the wild type; when only the dominant gene E is present, the stamens of the plant will transform into pistils, resulting in a fertile plant with a phenotype of double pistils; as long as the dominant gene E is absent, the plant will be sterile. Based on the information above, please answer the following questions:

(1) When homozygotes BBEE and bbEE are crossed, the genotype that should be chosen as the female parent is \_\_\_\_, and the phenotype and its proportion in the F2 generation are \_\_\_\_.

(2) When a BbEe individual self-pollinates, the proportion of fertile offspring is \_\_\_\_, and the genotype of the homozygous fertile individuals is \_\_\_\_.

(3) Please design an experiment to investigate whether a certain double pistil individual is a homozygote. Hint: There are homozygous plants with known traits available for selection.

Experimental steps: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Predicted results and conclusion:

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Present the answer in LaTex format: \boxed{Your answer}
user