a n b 2n c 3n d 4n e 8n 3n What is the best description of double fertilization

A n b 2n c 3n d 4n e 8n 3n what is the best

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a. nb. 2nc. 3nd. 4ne. 8n3nWhat is the best description of double fertilization in angiosperms?a. One sperm fertilizes the egg, which develops into the embryo; the other sperm fertilizes the ovary, which becomes the fruit.b. One sperm fertilizes the egg, which develops into the embryo; the other sperm fertilizes the polar nuclei, which forms the endosperm.c. One sperm fertilizes the egg, which develops into the embryo; the other sperm fertilizes the polar nuclei, which forms the seed coat.d. One sperm fertilizes the egg, which develops into the embryo; the other sperm produces the pollen tube.e. One pollen grain fertilizes the embryo sac; the other sperm fertilizes the pollen grain.One sperm fertilizes the egg, which develops into the embryo; the other sperm fertilizes the polar nuclei, which forms the endosperm.Pollination begins when pollen is transferred from thea. anther to the ovary of a flower.b. anther to the receptacle of a flower.c. anther to the stigma of a flower.d.stigma to the embryo sac of a flower.e. synergid to the egg of a flower.anther to the stigma of a flower.A researcher is investigating the morphology of complete flowers. This means that the flowers containa. calyx, corolla, receptacle, and carpels.b. calyx, corolla, carpels, and ovules.c. calyx, corolla, stamens, and anthers.d. calyx, corolla, carpels, and pistils.e. calyx, corolla, androecium, and gynoecium.calyx, corolla, androecium, and gynoeciumPollen grains are formed in the anther of the flower by which sequence of events?a. Diploid microspore mother cells divide by meiosis to form four haploid microspores. Each microspore develops into a pollen grain by mitosis.b. Haploid microspore mother cells divide by meiosis to form four diploid microspores. Each microspore develops into a pollen grain by mitosis.
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c. Diploid microspore mother cells divide by mitosis to form four haploid microspores. Each microspore develops into a pollen grain by meiosis.d. Haploid microspore mother cells divide by mitosis to form four diploid microspores. Each microspore develops into a pollen grain by meiosis.e. Diploid megaspore mother cells divide by mitosis to form four diploid megaspores. Each megaspore develops into a pollen grain by meiosis.Diploid microspore mother cells divide by meiosis to form four haploid microspores. Each microspore develops into a pollen grain by mitosis.If a plant self-pollinates and has complete flowers, then it must bea. dichogamous.b. monoecious.c. dioecious.d. staminate.e. pistillate.dichogamous.Which of these methods does not help promote outcrossing in plants?a. Staminate flowers and pistillate flowers reach maturity at different times.b. Genetic self-incompatibility, even when staminate flowers and pistillate flowers reach maturity at the same time.
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  • Spring '08
  • GEORGESIMMONS
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