true breeding , purple stem tomato plants were crossed with green stem plants and all the F1 plants had purple stems. when the later were crossed the F2 generation comprised 3,087 purple stem and 1,096 green stem plants . a) how would you explain these results? b) formulate a hypothesis for these results ? c) does your hypothesis fit the observed results satisfactorily?​

Select all the true statements about the cosmic microwave background radiation

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air