NEET Exam > NEET Videos > Biology Class 12 > Detailed Overview: Events in Sexual Reproduction
Detailed Overview: Events in Sexual Reproduction Video Lecture | Biology Class 12 - NEET
|
86 videos|294 docs|184 tests
|
FAQs on Detailed Overview: Events in Sexual Reproduction Video Lecture - Biology Class 12 - NEET
| 1. What are the events involved in sexual reproduction? |  |
Ans. Sexual reproduction involves several events, including gametogenesis, fertilization, and embryogenesis. Gametogenesis refers to the formation of specialized reproductive cells called gametes, which are the egg and sperm in animals. Fertilization occurs when the sperm penetrates the egg, resulting in the fusion of their genetic material. Embryogenesis is the process of development and growth of the fertilized egg into an embryo.
| 2. How does gametogenesis occur in animals? | |
Ans. Gametogenesis in animals involves the formation of gametes through a process called meiosis. Meiosis is a type of cell division that reduces the chromosome number by half. In males, spermatogenesis produces sperm cells through meiosis, while in females, oogenesis produces egg cells. During spermatogenesis, diploid cells called spermatogonia undergo meiosis, resulting in the formation of four haploid sperm cells. In oogenesis, a diploid cell called oogonium undergoes meiosis to produce one egg cell and three polar bodies, which eventually degenerate.
| 3. What is fertilization in sexual reproduction? | |
Ans. Fertilization is the process by which the sperm and egg fuse to form a zygote. It occurs when a sperm cell penetrates the protective layers surrounding the egg and enters its cytoplasm. Once inside, the sperm releases its genetic material, which combines with the genetic material of the egg. This fusion of genetic material from the sperm and egg creates a zygote, which is the first cell of the new individual.
| 4. How does embryogenesis occur after fertilization? | |
Ans. Embryogenesis is the process of development and growth of the fertilized egg into an embryo. After fertilization, the zygote undergoes a series of cell divisions called cleavage. These divisions result in the formation of a solid ball of cells called a morula. The morula then undergoes further division and rearrangement to form a hollow ball of cells called a blastula. The blastula undergoes gastrulation, where the cells migrate and differentiate to form the three primary germ layers: ectoderm, endoderm, and mesoderm. These germ layers give rise to different tissues and organs in the developing embryo.
| 5. How does sexual reproduction contribute to genetic diversity? | |
Ans. Sexual reproduction contributes to genetic diversity through a process called recombination or genetic shuffling. During meiosis, the homologous chromosomes exchange genetic material through a process called crossing over. This exchange of genetic material results in the formation of new combinations of genes on the chromosomes. Additionally, during fertilization, the fusion of genetic material from two different individuals further increases genetic diversity. This genetic diversity is crucial for the adaptation and evolution of species, as it allows for the generation of individuals with different traits and variations.
About this Video
|
1.1K Views |
|
4.87/5 Rating |
|
Nov 22, 2024 Last updated |
Video Description: Detailed Overview: Events in Sexual Reproduction for NEET 2024 is part of Biology Class 12 preparation.
The notes and questions for Detailed Overview: Events in Sexual Reproduction have been prepared according to the NEET exam syllabus.
Information about Detailed Overview: Events in Sexual Reproduction covers all important topics for NEET 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Detailed Overview: Events in Sexual Reproduction.
Introduction of Detailed Overview: Events in Sexual Reproduction in English is available as part of our Biology Class 12 for NEET & Detailed Overview: Events in Sexual Reproduction in
Hindi for Biology Class 12 course. Download more important topics related with notes, lectures and mock test series for
NEET Exam by signing up for free.
Description
Video Lecture & Questions for Detailed Overview: Events in Sexual Reproduction Video Lecture | Biology Class 12 - NEET - NEET full syllabus preparation | Free video for NEET exam to prepare for Biology Class 12.
Information about Detailed Overview: Events in Sexual Reproduction
Here you can find the meaning of Detailed Overview: Events in Sexual Reproduction defined & explained in the simplest way possible.
Besides explaining types of Detailed Overview: Events in Sexual Reproduction theory, EduRev gives you an ample number of questions to practice Detailed Overview: Events in Sexual Reproduction tests,
examples and also practice NEET tests.
|
86 videos|294 docs|184 tests
|
|
Explore Courses for NEET exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Objective type Questions
,Free
,mock tests for examination
,Previous Year Questions with Solutions
,Detailed Overview: Events in Sexual Reproduction Video Lecture | Biology Class 12 - NEET
,shortcuts and tricks
,Important questions
,Detailed Overview: Events in Sexual Reproduction Video Lecture | Biology Class 12 - NEET
,Semester Notes
,MCQs
,study material
,Exam
,video lectures
,Extra Questions
,Sample Paper
,Summary
,ppt
,practice quizzes
,Detailed Overview: Events in Sexual Reproduction Video Lecture | Biology Class 12 - NEET
,Viva Questions
,past year papers
;
Study Detailed Overview: Events in Sexual Reproduction on the App
Students of NEET can study Detailed Overview: Events in Sexual Reproduction alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Detailed Overview: Events in Sexual Reproduction,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Detailed Overview: Events in Sexual Reproduction is prepared as per the latest NEET syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup