A plant has the genotype AaBb for two characteristics. The genes that control each characteristic are on different chromosomes. The plant produces sperm by a process that begins with meiotic cell division. Which
genotypes will the plant's sperm have?
1.Aa and Bb
2.AB and ab
3.AB, ab, aB and Ab
4.AA, Aa, BB, Bb, AB, Ab, aB and ab

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Which of the following is not a benefit of genetically modified foods? a.pest-resistant crops b.herbicide-resistant crops c.plants that do not require water?