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dangina [55]
3 years ago
14

Alleles are alternate versions of _____ gene(s) that have ____ nucleotide sequences. A. the same; completely different B. the sa

me; small differences in their C. different; completely different D. different; the same E. different; small differences in their
Biology
2 answers:
12345 [234]3 years ago
5 0

Answer:

Explanation:

when youre feelinsgs subside and shadows still remain

gons and ruse

Savatey [412]3 years ago
4 0

Answer: A

Explanation:

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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
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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.
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