NCERT Solutions For Class 12 Biology Chapter 2: Sexual Reproduction in Flowering Plants

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NCERT Solutions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants is included in this article. It comprises all the important definitions, concepts, and methodologies which will prove to be extremely beneficial for the students appearing for CBSE Class 12 Exam 2022-23. The important topics that are covered in Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants are:

Expected no. of Questions: 3-4 questions of around 4 marks.

Download PDF: NCERT Solutions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants

NCERT Solutions for Class 12 Biology Chapter 2

NCERT Solutions PDF for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants are given below:

Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants: Important Topics

The organ of sexual reproduction is the flower. Male gametes are found in pollen grains and produced in the anthers of the flower. Female gametes are found in ovules and produced in the ovary of the flower. In plants, both sexual and asexual reproduction takes place.

Apomixis

Apomixis in flowering plants can be referred to as the asexual formation of a seed from the maternal tissues of the ovule, avoiding the processes of meiosis and fertilization, and leading to embryo development.

Binary Fission

Binary Fission is a type of asexual reproduction wherein an organism divides into two, each part carrying one copy of genetic material. This process takes place with the division and duplication of the parent’s genetic matter into two parts

Double Fertilization

Double fertilization is a process in flowering plants, also known as angiosperms, by means of which they reproduce sexually.

Fertilization: The process, in general, involves the fusion of male and female gametes. In an angiosperm, double fertilization is said to be taking place. This simply means that two types of fertilization or fusion are occurring simultaneously where one female gamete fuses with two male gametes.

Flower Structure

The flower structure comprises four main parts or whorls—known as the calyx, corolla, androecium, and gynoecium. Flowering plants, also known as angiosperms, account for the vast majority of the plant kingdom.

Calyx: The calyx, part of a flower, is made up of sepals, green leaf-like structures that enclose the unopened bud.
Corolla: The corolla is composed of the petals of the flower, which are usually brightly colored in order to attract insects.
Androecium: The androecium is made up of the male reproductive organs, the stamens. Each stamen comprises a long, slender filament topped by a pollen-producing anther.
Gynoecium: The gynoecium lies in the very middle of the flower and is composed of a pistil or pistils (or carpels, as they are also sometimes called).

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CBSE CLASS XII Related Questions

1.
Which connective tissue connects ovary to pelvic wall and uterus?
- Tendons
- Ligaments
- Cartilage
- Bone
View Solution
2.
The foetal ejection reflex in human triggers the release of _______ hormone from _______
- oxytocin, foetal pituitary
- oxytocin, maternal pituitary
- human chorionic gonadotropin, placenta
- progesterone, corpus luteum
View Solution
3.
A DNA molecule is 160 base pairs long. It has 30% Guanine. How many Adenine bases are present in this DNA molecule?
- 48
- 64
- 96
- 192
View Solution
4.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactalbumin.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
5.
Assertion (A): Repetitive sequences make up a very large portion of human genome.
Reason (R): Repetitive sequences do not have direct coding functions in the genome.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
6.
In an ecosystem, different species occupy different levels and vertical distribution of species is found. This is called ______.
- Stratification
- Layering
- Fragmentation
- Population
View Solution

View All

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Sexual Reproduction in Flowering Plants

NCERT Solutions For Class 12 Biology Chapter 2: Sexual Reproduction in Flowering Plants

NCERT Solutions for Class 12 Biology Chapter 2

Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants: Important Topics

Apomixis

Binary Fission

Double Fertilization

Flower Structure

CBSE CLASS XII Related Questions

1.
Which connective tissue connects ovary to pelvic wall and uterus?

2.
The foetal ejection reflex in human triggers the release of _ hormone from _

3.
A DNA molecule is 160 base pairs long. It has 30% Guanine. How many Adenine bases are present in this DNA molecule?

4.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactalbumin.

5.
Assertion (A): Repetitive sequences make up a very large portion of human genome.
Reason (R): Repetitive sequences do not have direct coding functions in the genome.

6.
In an ecosystem, different species occupy different levels and vertical distribution of species is found. This is called ______.

Similar Biology Concepts

Comments

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NCERT Solutions For Class 12 Biology Chapter 2: Sexual Reproduction in Flowering Plants

NCERT Solutions for Class 12 Biology Chapter 2

Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants: Important Topics

Apomixis

Binary Fission

Double Fertilization

Flower Structure

CBSE CLASS XII Related Questions

1.Which connective tissue connects ovary to pelvic wall and uterus?

2.The foetal ejection reflex in human triggers the release of _______ hormone from _______

3.A DNA molecule is 160 base pairs long. It has 30% Guanine. How many Adenine bases are present in this DNA molecule?

4.Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk. Reason (R) : It was human protein enriched milk containing human alpha lactalbumin.

5.Assertion (A): Repetitive sequences make up a very large portion of human genome. Reason (R): Repetitive sequences do not have direct coding functions in the genome.

6.In an ecosystem, different species occupy different levels and vertical distribution of species is found. This is called ______.

Similar Biology Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Which connective tissue connects ovary to pelvic wall and uterus?

2.
The foetal ejection reflex in human triggers the release of _ hormone from _

3.
A DNA molecule is 160 base pairs long. It has 30% Guanine. How many Adenine bases are present in this DNA molecule?

4.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactalbumin.

5.
Assertion (A): Repetitive sequences make up a very large portion of human genome.
Reason (R): Repetitive sequences do not have direct coding functions in the genome.

6.
In an ecosystem, different species occupy different levels and vertical distribution of species is found. This is called ______.