Homozygous pea plants with round seeds are crossed to homozygous pea plants with wrinkled seeds. The F1 progeny undergo self-fertilization. A single round seed is chosen at random from the F2 progeny, and its DNA examined by electrophoresis as described in the text. What is the probability that the observed gel pattern will be B?

Which describes radioactive decay of a substance

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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.