What was the most important scientific advance gained from gregor mendel's experiments with pea plants? a. we learned that chromosomes are composed of dna. b. we learned that recessive alleles occur more frequently in the f2 generation than do dominant ones. c. we learned that many traits are inherited in discrete units, and are not the result of blending. d. we learned that there is considerable genetic variation in garden peas. e. darwin's theory of evolution by natural selection was confirmed?
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Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.
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What was the most important scientific advance gained from gregor mendel's experiments with pea plan...
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