Medical
Biology
Introduction to Genetics
Question
During a monohybrid cross involving a tall pea plant with a dwarf pea plant, the offspring populations were tall and dwarf in equal ratio. Work out a cross to show how it is possible.
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Solution
Answer:
To have tall and dwarf progeny in equal ratio, both parents should have at least one copy of recessive allele (t). This makes the tall plant being a heterozygous dominant (Tt). Being recessive character, dwarfism can be expressed only by homozygous genotype; genotype of a dwarf parent is "tt".
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