All GRE Subject Test: Biology Resources
Example Questions
Example Question #2 : Plant Reproduction
Double fertilization in angiosperms results in a __________ zygote and a triploid __________.
Possible Answers:
haploid . . . fruit
haploid . . . endosperm
diploid . . . fruit
diploid . . . seed
diploid . . . endosperm
Correct answer:
diploid . . . endosperm
Explanation:
Double fertilization is the process by which two sperm cells are introduced to the ovule. One sperm () fertilizes the egg (
), creating a zygote(
). The other sperm combines with the two polar nuclei (
), forming the endosperm (
) that will nourish the embryo.
All GRE Subject Test: Biology Resources
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