Please answer everything with explanation. In The Day of the Triffids, after most people in the world are blinded by an apparent meteor shower, an aggressive species of alien plants (brought to earth on the meteors) starts attacking people. Some Triffids have a poison stingers, and some do not. 1. Two true-breeding Triffid strains (poison stingers and no stingers) are crossed. All F1 progeny have poison stingers. What proportion of the F1 will be true-breeding? 2. Two true-breeding Triffid strains (poison stingers and no stingers) are crossed. All F1 progeny have poison stingers. The F1 is selfed to produce an F2. What proportion of the F2 will be true-breeding? 3. Some Triffids have a poison stingers, and some do not. Some Triffids are orange, and some are purple. Poison stingers and orange color are dominant. A scientist crosses a purple plant with no stinger to an orange plant with a stinger that is homozygous for the poison stinger trait and heterozygous for the color trait. .... % of the offspring will be orange, and .... % will have a stinger.
Please answer everything with explanation.
In The Day of the Triffids, after most people in the world are blinded by an apparent meteor shower, an aggressive species of alien plants (brought to earth on the meteors) starts attacking people.
Some Triffids have a poison stingers, and some do not.
1. Two true-breeding Triffid strains (poison stingers and no stingers) are crossed. All F1 progeny have poison stingers. What proportion of the F1 will be true-breeding?
2. Two true-breeding Triffid strains (poison stingers and no stingers) are crossed. All F1 progeny have poison stingers. The F1 is selfed to produce an F2. What proportion of the F2 will be true-breeding?
3. Some Triffids have a poison stingers, and some do not. Some Triffids are orange, and some are purple. Poison stingers and orange color are dominant. A scientist crosses a purple plant with no stinger to an orange plant with a stinger that is homozygous for the poison stinger trait and heterozygous for the color trait.
.... % of the offspring will be orange, and
.... % will have a stinger.
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