NCERT Solutions for Class 12 Biology Chapter 1

The solutions of Biology Class 12, chapter 1 are prepared in a free PDF format. By downloading and studying from these solutions, you will be able to clear doubts and have the confidence to tackle the 12th board exam.

NCERT Solutions for Class 12 Biology Chapter 1 Reproduction in Organisms

This Biology NCERT solution contains 18 key questions from the chapter Reproduction in Organisms, and here is a brief discussion. Take a look!

• Reproduction in Organism’s Class 12 NCERT Solutions: Question 1

In the first question, students need to discuss how essential reproduction is to continue an organism’s generation. You can also put more light on the three different life phases. Without reproduction, there will be no existence of life on the planet.

• Reproduction in Organism’s Class 12 NCERT Solutions: Question 2

In the second question, you will have to write the comparison between sexual and asexual reproduction, and state which mode is better by providing relevant justification.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 3

This question asks students the reason why offspring produced from asexual reproduction is referred to as a clone.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 4

In this question, you need to write about why sexual reproduction is considered a better mode of reproduction. The child produced by sexual reproduction has maximum chances of survival.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 5

Biology Class 12 chapter 1 question 5 is about the difference between progeny formed asexual and sexual reproduction.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 6

This question asks students to distinguish between asexual and sexual reproduction, and why vegetative reproduction falls under the category of asexual reproduction.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 7

In this question, you will have to write about vegetative propagation and support your answer with examples like:

Diagram showing the eyes of a potato

(image will be uploaded soon)

• Reproduction in Organism's Class 12 NCERT Solutions: Question 8

This question is about defining juvenile phase, reproduction phase and senescent phase.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 9

Question 9 asks students to write why higher organisms use the sexual reproduction method, though being complex.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 10

This question requires an explanation about the link between meiosis and gametogenesis.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 11

In this question, students will have to identify the parts of flowering plants and mention whether they are diploid or haploid.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 12

Biology Class 12 chapter 1 question 12 requires the definition of external fertilisation and the disadvantages of the same.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 13 and 14

These two questions ask the differences between zygote and zoospore, and gametogenesis and embryogenesis, respectively.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 15

Here, students will have to describe the changes that take place during post-fertilisation in flower.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 16

This question is about the explanation of bisexual flowers, and asks the learners to collect five bisexual flowers from their surrounding areas, and seek for their scientific and common names.

• Reproduction in Organism's Class 12 NCERT Solutions: Question 17

Question 17 asks the students to inspect flowers of a cucurbit plant and rule out the pistillate and staminate flowers. 

• Reproduction in Organism's Class 12 NCERT Solutions: Question 18

In the final question, you will have to write why the offspring of viviparous animals have less risk than the offspring of oviparous animals.

Biology Class 12 Chapter 1: Marks Weightage

Reproduction in organisms is the first chapter of Unit 1 from CBSE Biology book. A total of 12 marks is set for this unit in 12th board exams, but segregation of marks for each chapter is not defined.

Class 12 Biology Chapter 1 NCERT Solutions Benefit

Take a look at some of the benefits of the NCERT solution of Class 12 Biology chapter 1 in preparation of board exams:

1. Use of simple language, such that everyone can easily comprehend them.

2. Solutions are written by some of the experienced faculty members.

3. A considerable amount of materials for practising.

4. Emphasis on complex topics and concepts.

Hence, it is always profitable to make use of the NCERT solutions to refrain from struggling with the questions in board exams. Download the NCERT solutions of Class 12 Biology chapter 1 PDF offered by Vedantu today!