The fusion of a sperm with which of the follo | vedclass

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(D) In humans,the process of fertilization involves the fusion of a haploid sperm $(n)$ with a haploid female gamete. During oogenesis,the secondary o

Vedclass · Accepted Answer

Both $A$ and $C$

Vedclass · Answer

(D) In humans,the process of fertilization involves the fusion of a haploid sperm $(n)$ with a haploid female gamete. During oogenesis,the secondary oocyte completes meiosis-$II$ only after the entry of the sperm. Upon the entry of the sperm,the secondary oocyte undergoes the second meiotic division to form a haploid ovum (ootid) and a second polar body. Subsequently,the haploid nucleus of the sperm and the haploid nucleus of the ovum fuse together to form a diploid zygote $(2n)$. Since the secondary oocyte is the stage that receives the sperm and eventually leads to the formation of the ovum,both terms are biologically relevant in the context of the fertilization event leading to the zygote. Therefore,the correct answer is $D$.

The fusion of a sperm with which of the following results in the formation of a diploid zygote?

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