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dolphi86 [110]
2 years ago
11

At the moment of sperm penetration, human eggs ______. A. have used flagellar propulsion to move from the ovary to the oviduct B

. are still located within the ovary C. have a paper-thin cell of calcium carbonate that prevents desiccation D. are still surrounded by follicular cells
Biology
1 answer:
marshall27 [118]2 years ago
6 0

During sperm penetration, human eggs are still surrounded by follicular cells.

Therefore, the correct answer is Option D.

<h3>What changes does egg undergo for fertilization?</h3>
  • An egg goes through a few changes at the hour of sperm penetration during fertilization.
  • These progressions happen at the cell surface, in development, physiology and gene expression.
  • For fertilization, a sperm should combine with the cell membrane and afterward infiltrate the egg cells.
  • Infiltration through the egg cell or extracellular matrix (ECM) is a troublesome task.
  • The acrosome of the egg goes through acrosomal reaction to get through the hard shell of cell.
  • To go through the follicle cells encompassing the egg or oocyte, the sperm discharges hyaluronidase enzyme.
  • This chemical isn't delivered until the sperm comes into contact with the egg cell's zona pellucida.

Learn more about fertilization here:

brainly.com/question/18117670

#SPJ4

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