In an experiment, a student crosses two pea plants that are tall with purple flowers. She finds that the offspring of this cross have a 3:1 ratio of purple:white flowers and a 3:1 ratio of tall:short plants. However, individual plants could be tall and purple, tall and white, short and white or short and purple. Based on Mendel’s Law of Independent Assortment, what do you expect the phenotypic ratio to be, when accounting for all trait combinations?
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3:1 |
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3:3:3:3 |
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9:3:3:1 |
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12:3:3:1 |
I believe the correct answer to be:
Option C) 9:3:3:1.
As this would be a dihybrid cross between TtPp x TtPp which would give the above result.
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In an experiment, a student crosses two pea plants that are tall with purple flowers. She...
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In
pea plants, tall (T) is dominant and short (t) id recessive.
A heterozygous tall plant is crossed with a short plant.
What is the expected phenotypic ratio?
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