Question:

In oogamy fertilization involves

Updated On: Jan 8, 2026

  • A large non-motile female gamete and a small motile male gamete

  • A large non-motile female gamete and a small non-motile male gamete

  • A large motile female gamete and a small non-motile male gamete

  • A small non-motile female gamete and a large motile male gamete 

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The Correct Option is A

Solution and Explanation

Large non-motile female gamete and a small motile male gamete: This option is correct because in oogamous reproduction, fusion occurs between these types of gametes. Large non-motile female gamete and a small non-motile male gamete: This option is not correct because the male gamete should be motile.A large motile female gamete and a small non-motile male gamete: This option is incorrect because the female gamete should be non-motile.A small non-motile female gamete and a large motile male gamete: This option is also incorrect because it doesn't follow the typical pattern of oogamous reproduction.
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Concepts Used:

Human Reproduction

Reproduction in human beings involves the fusion of male and female gametes that produces in their reproductive system.

Male Reproductive System:

The male reproductive system comprises:

  • Testicles (testes): A pair of oval-shaped organs masked in a pouch known as the scrotum. They manage the production of sperms and the male hormone testosterone.
  • Scrotum: It is a sac-like organ that hangs under the penis and behind it. It is the house of the testes, or testicles, and maintains a temperature that is needed for the production of sperm by it.
  • Vas deferens: The sperms produced in testes are stored in a tube known as the epididymis. Here the sperms get matured and pass to the urethra via the muscular tube known as vas deferens.
  • Accessory glands: This includes three glands, namely the prostate gland, seminal vesicles, and Cowper’s gland. The secretions from the mentioned three glands mix to form a fluid known as semen. Semen nourishes the sperm, raises the volume, and helps in lubrication.
  • Penis: The penis is a cylindrical tube that serves as both an excretory organ, and a reproductive organ. It transfers sperms into the vagina during sexual intercourse.

Female Reproductive System:

The female reproductive system is active before, during, and after fertilization as well. It comprises the following parts:

  • A pair of ovaries: A pair of ovaries produce and stores ovum in them. They also produce a female hormone known to be estrogen.
  • Fallopian tubes (Oviducts): They are the area of fertilization. They connect both the ovaries with the uterus.
  • Uterus: Uterus is the place of development for the embryo.
  • Vagina: The part that connects the cervix to the external female body parts is called a vagina. It is the passage for the penis during coitus as well as a fetus during transfer.