1
Question
The enzymes that dissolve the membrane
enveloping the ovum and help sperm to enter the ovum are:
The enzymes that dissolve the membrane
enveloping the ovum and help sperm to enter the ovum are:
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Solution
The correct option is A Sperm lysins
In mammals the sperm head contains digestive enzymes (including hyaluronidase and acrosin). These enzymes break down the outer membrane of the ovum, called the zona pellucida, allowing the haploid nucleus in the sperm cell to join with the haploid nucleus in the ovum. These are called the sperm lysins. Inhibin and spectrin sre other proteins not involved in this process.
In mammals the sperm head contains digestive enzymes (including hyaluronidase and acrosin). These enzymes break down the outer membrane of the ovum, called the zona pellucida, allowing the haploid nucleus in the sperm cell to join with the haploid nucleus in the ovum. These are called the sperm lysins. Inhibin and spectrin sre other proteins not involved in this process.
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