Human reproduction is an important chapter of Biology. This chapter is a high weightage chapter for the NEET examination. Here in this article, we are sharing short notes, video lectures and previous year questions with the detailed solution of the NEET Biology chapter Human Reproduction.
Reproduction is the process of producing offspring, and the reproductive system is a collection of organs that participate in this process. Humans are viviparous, which means they reproduce sexually. In sexual reproduction, the rate of reproduction is always slower.
The human reproductive system is made up of three different sex organs.
- Primary Sex Organ
- Secondary Sex Organ
- External Sex Characters
Male Reproductive System
The male reproductive system is located in the pelvis and consists of a paired duct system that includes the vasa efferentia, urethra, epididymis, vas deferens, ejaculatory duct, and a pair of the testis.
Female Reproductive System
A pair of oviducts, ovaries, a uterus, a vagina, a pair of mammary glands, and external genitalia comprise the Female Reproductive System.
The process of fertilisation is known as the fusion of sperm and an ovum, which results in the formation of a diploid. This process activates the secondary oocyte cell, causing the division to be completed.
During the fertilization process, a sperm comes into contact with an ovum, and changes in the membrane prevent additional sperm from entering. The acrosome’s secretions help sperm enter the cytoplasm of the ovum, and thus the meiotic division of the secondary oocyte initiates the completion process. The ovum and haploid nucleus are soon combined to form a diploid zygote.
At this stage, the baby’s sex is determined. During spermatogenesis, two types of male gametes are formed: those with the X chromosome and those with the Y chromosome. When X-chromosome sperm fuses with an ovum, the zygote develops into a female child, while Y-chromosome sperm fuses with an ovum, the zygote develops into a male child. The zygote divides mitotically, forming blastomeres, and migrates to the uterus through the oviduct.
Morula is the embryonic stage with 8-16 blastomeres. After the morula stage, the blastocyst is formed by continuous division. At this stage, blastomeres form an outer layer called the trophoblast, and inner cells form an inner cell mass. The trophoblast attaches to the uterine endometrium lining, and the inner cell mass differentiates into the embryo. As the dividing uterine cells completely cover the blastocyst, it becomes embedded in the endometrium. The procedure is referred to as implantation. This is the beginning of a pregnancy.
Dr. Stuti Agarwal will present the first session. She is a NEET expert and NEET Biology subject matter specialist. In the following video, she discusses Human Reproduction in detail, and various tips are also shared. She discusses the MCQs from the chapter Human Reproduction in addition to the tips and video lectures.
Lecture & MCQ discussion
The nest two sessions are from Ms. Aishwarya Gurung, she is a NEET coach and a subject matter specialist of NEET Biology. She discusses the topic of Human Reproduction in two different sessions
The last session is a PYQ special session conducted by Mr. Ajay Kumar. He discusses important MCQs from the topic of Human Reproduction.
Human Reproduction: Previous Year Questions with detailed solution
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