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

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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] · Answer 1 · 2023-06-29T09:47:23+03:00

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

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