Question

why can't a second sperm fertilise the ovum?​

Answer 1

$\huge{\mathfrak{HEYA\:MATE\:!!}}$

Answer...

The second sperm can't fertilize the ovum because when the first sperm penetrates the ovum , it comes in contact with the zona pellucida layer. It induces some changes in this membrane which blocks the entry of second sperm .

Moreover , if the second sperm penetrates the ovum , then the resulting zygote formed will be triploid instead of diploid. This will result in chromosomal disorder .

$\mathscr{\large{Hope\:helps\:}}!! \\ \\ {GRACIAS!!}$

$\huge{\red{\ddot{\smile}}}$

Answer 2

Explanation:

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