Imagine That You Self-Pollinate Heterozygous Purple-Flowered, Long-Pollened Pea Plants and Get

question 89

Multiple Choice

Imagine that you self-pollinate heterozygous purple-flowered, long-pollened pea plants and get mostly purple-flowered, long-pollened plants and white-flowered, short-pollened plants, with a few purple-flowered, short-pollened or white-flowered, long-pollened plants. What is the most likely explanation?

• A) The genes for flower color and pollen length are linked.
• B) The gene for flower color is on a sex chromosome.
• C) Long pollen is often lethal, so few plants with long pollen survive to adulthood.
• D) The purple allele influences pollen to become shorter.
• E) This is a normal random variation from the expected ratio for independent assortment.

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