NCERT Solutions For Class 12 Biology Chapter 15: Biodiversity and Conservation

Study Abroad Expert

NCERT Solutions for Class 12 Biology Chapter 15 Biodiversity and Conservation are provided in this article. It covers all the important definitions, concepts, and methodologies that will be really beneficial for the students appearing for CBSE Class 12 Exam 2022-23. The important topics that are included in this chapter are:

Expected no. of Questions: 1-2 questions of around 4 marks.

Download PDF: NCERT Solutions for Class 12 biology chapter 15 Biodiversity and Conservation

NCERT Solutions for Class 12 Biology Chapter 15

NCERT Solutions

Class 12 Biology Chapter 15 Biodiversity and Conservation: Important Topics

Biodiversity conservation is referred to as the protection, upliftment, as well as management of biodiversity, deriving sustainable benefits for present and future generations. In other words, it is the protection and management of biodiversity in order to obtain resources for sustainable development. Biodiversity is the variability of life on earth, which can be conserved in the following ways: In-situ Conservation and Ex-situ Conservation.

Biodiversity conservation consists of three main objectives:

To preserve the diversity of species
Sustainable utilization of species and ecosystem
To maintain life-supporting systems and essential ecological processes

Loss of Biodiversity

Biodiversity loss is the decline or disappearance of biological diversity, or the local reduction or loss of species in a certain habitat, leading to the loss of biological diversity. The term biodiversity or biological diversity refers to the number of genes, species, and individual organisms within a given species within a defined geographic area, ranging from the smallest ecosystem to the global biosphere.

Also Read:

Related Articles
Biosphere reserves	Hotspots	Ramsar sites
Sanctuaries	Wildlife	Mass extinctions
Flagship species	KT Extinction	Mass Extinction

Check-Out:

PCMB Study Guides
NCERT Solutions for Class 12 Physics	Class 12 Physics Notes	Formulas in Physics
Topics for Comparison in Physics	Choice-based questions in physics	Topics in relation to physics
Physics Study Notes	Class 12 Physics Book PDF	Class 12 Physics Practicals
Important Derivations in Physics	SI units in Physics	Important Physics Constants and Units
Class 12 Physics Syllabus	Mendeleev's Periodic Table	NCERT Solutions for Class 12 Biology
NCERT Solutions for Class 12 English	NCERT Solutions for Class 11 Chemistry	Class 12 Chemistry Practicals
Class 12 Chemistry Notes	Important Chemical Reactions	Class 12 Maths Notes
Class 12 PCMB Notes	NCERT Class 12 Biology Book	NCERT Class 12 Maths Book
NCERT Class 12 Textbooks	NCERT Solutions for Class 11 Maths	NCERT Solutions for Class 11 Physics
NCERT Solutions for Class 12 Maths	NCERT Solutions for Class 11 Biology	NCERT Solutions for Class 11 English
NCERT Class 11 Chemistry Book	NCERT Class 11 Physics Book	NCERT Class 11 Biology Book
Class 11 Notes	Important Maths Formulas	Important Chemistry Formulas
Class 11 PCMB Syllabus	Chemistry Study Notes	Biology Study Notes
Periodic Table in Chemistry	Important Chemical Reactions	Comparison topics in Chemistry
Comparison Topics in Maths	Biology MCQs	Important Named Reactions
Maths MCQs	Comparison Topics in Biology	Chemistry MCQs

CBSE CLASS XII Related Questions

1.
Write the composition of intine and exine layers of a pollen grain.

View Solution

2.
Study the given below single strand of deoxyribonucleic acid depicted in the form of a “stick” diagram with 5′ – 3′ end directionality, sugars as vertical lines and bases as single letter abbreviations and answer the questions that follow.

Name the covalent bonds depicted as (a) and (b) in the form of slanting lines in the diagram.
How many purines are present in the given “stick” diagram?
Draw the chemical structure of the given polynucleotide chain of DNA.

View Solution

3.
Enlist three advantages of genetically modified plants.

View Solution

4.
Student to attempt either option (A) or (B):
(A) Write two features of an ideal contraceptive. Explain any one natural contraceptive method that makes the chances of conception almost nil.
(B) Explain GIFT and ICSI.

View Solution

5.
Student to attempt either option-(A) or (B):
(A) Write the features a molecule should have to act as a genetic material. In the light of the above features, evaluate and justify the suitability of the molecule that is preferred as an ideal genetic material.
OR
(B) Differentiate between the following:
[(i)] Polygenic Inheritance and Pleiotropy
[(ii)] Dominance, Codominance and Incomplete dominance

View Solution

6.
If a natural population of 60 individuals is in Hardy-Weinberg equilibrium for a gene with two alleles B and b, with the gene frequency of allele B of 0.7, the genotype frequency of Bb will be:

( 0.21 )
( 0.42 )
( 0.49 )
( 0.56 )

View Solution

NCERT Solutions for class 12 biology chapter 15: Biodiversity and Conservation

NCERT Solutions for Class 12 Biology Chapter 15

Class 12 Biology Chapter 15 Biodiversity and Conservation: Important Topics

Loss of Biodiversity

CBSE CLASS XII Related Questions

1.
Write the composition of intine and exine layers of a pollen grain.

3.
Enlist three advantages of genetically modified plants.

4.
Student to attempt either option (A) or (B):
(A) Write two features of an ideal contraceptive. Explain any one natural contraceptive method that makes the chances of conception almost nil.
(B) Explain GIFT and ICSI.

6.
If a natural population of 60 individuals is in Hardy-Weinberg equilibrium for a gene with two alleles B and b, with the gene frequency of allele B of 0.7, the genotype frequency of Bb will be:

Similar Biology Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

NCERT Solutions for class 12 biology chapter 15: Biodiversity and Conservation

NCERT Solutions for Class 12 Biology Chapter 15

Class 12 Biology Chapter 15 Biodiversity and Conservation: Important Topics

Loss of Biodiversity

CBSE CLASS XII Related Questions

1.Write the composition of intine and exine layers of a pollen grain.

3.Enlist three advantages of genetically modified plants.

4.Student to attempt either option (A) or (B): (A) Write two features of an ideal contraceptive. Explain any one natural contraceptive method that makes the chances of conception almost nil. (B) Explain GIFT and ICSI.

6.If a natural population of 60 individuals is in Hardy-Weinberg equilibrium for a gene with two alleles B and b, with the gene frequency of allele B of 0.7, the genotype frequency of Bb will be:

Similar Biology Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Write the composition of intine and exine layers of a pollen grain.

3.
Enlist three advantages of genetically modified plants.

4.
Student to attempt either option (A) or (B):
(A) Write two features of an ideal contraceptive. Explain any one natural contraceptive method that makes the chances of conception almost nil.
(B) Explain GIFT and ICSI.

6.
If a natural population of 60 individuals is in Hardy-Weinberg equilibrium for a gene with two alleles B and b, with the gene frequency of allele B of 0.7, the genotype frequency of Bb will be: