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Fertilisation: Quiz


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Question 1: Fusion between the sperm and oocyte plasma membranes follows, allowing the entry of the sperm nucleus, centriole and ________, but not the mitochondria, into the oocyte.

Question 2: After a male ejaculates, a large number of sperm cells move to the upper vagina (via contractions from the vagina) through the cervix and across the length of the ________ toward the ovum.
UterusOvaryVulvaReproductive system

Question 3: Note that the ________ is only inherited from the maternal parent.
MitochondrionAspartate transaminaseMitochondrial DNATransfer RNA

Question 4: In animals, the process involves a sperm fusing with an ovum, which eventually leads to the development of an ________.
Prenatal developmentFertilisationEmbryogenesisEmbryo

Question 5: After being fertilised, the ovary starts to swell and will develop into the ________.
Flowering plantFruitSeedVegetable

Question 6: ________, which occurs around 16 days after fertilisation, is the point in development when the implanted blastocyst develops three germ layers, the endoderm, the ectoderm and the mesoderm.
Regional specificationGastrulationArchenteronCleavage (embryo)

Question 7: Hydrolytic ________ are secreted by the pollen tube that digest the female tissue as the tube grows down the stigma and style; the digested tissue is used as a nutrient source for the pollen tube as it grows.
EnzymeEnzyme inhibitorCofactor (biochemistry)Protein

Question 8: The other sperm cell fuses with two haploid polar nuclei (contained in the central cell) in the centre of the ________ sac (or ovule).
Prenatal developmentEmbryoFertilisationEmbryogenesis

Question 9: It is probable that ________ is involved in directing the sperm to the egg, but the mechanism has yet to be worked out.
InflammationChemotaxisBacteriaImmune system

Question 10: If the embryo emplants in any tissue other than the uterine wall, an ________ results, which can be fatal to the mother.
Ectopic pregnancyMiscarriageBreech birthHydatidiform mole

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