The gene that encodes for plant height in sunflower plants follows a strict recessive/dominant pattern of inheritance and has 2 alleles (tall and short). A tall sunflower plant is crossed with a short sunflower plant. Half of the offspring from this cross are tall, and the other half are short. From this information, what are the parents' genotypes?
What will be an ideal response?
One plant parent has to be homozygous recessive, while the other plant parent has to be heterozygous. If the 2 are crossed, the result is that half the offspring are tall, the other half short.
Biology & Microbiology
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