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Question

Which of the following sets of conditions promote fertilisation?

I. Presence of calcium ions
II. Presence of magnesium ions
III. pH range from 7.0 - 8.5
IV. pH below 6.0

A
I and II only
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B
I, II and III
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C
I, II and IV
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D
I and IV only
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Solution

The correct option is B I, II and III
There are certain necessary conditions that must be provided inside the reproductive tract of human females to facilitate the process of fertilisation. These conditions include optimum pH, presence of calcium ions and magnesium ions.

Calcium ions play important roles in the acrosomal reactions and sperms capacitation, as well as cortical granule reactions. Magnesium ions play an important role in the regulation of a variety of processes essential for fertilisation.

A pH range has to be maintained in the female reproductive tract. pH range from 7.0 - 8.5 is essential for the survival of sperms. Sperms may become unviable below a ph range of 6.0, and hence, will be incapable of fertilisation.

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