Oogenesis Takes Place in Corpus Luteum - Biology


Identify True/False statements. Correct each false statement to make it true.

Oogenesis takes place in corpus luteum. (True/False)



Oogenesis takes place in corpus luteum. (False)

Oogenesis takes place in the ovary.

Concept: Gametogenesis
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Chapter 3: Human Reproduction - Exercises [Page 56]


NCERT Biology Class 12
Chapter 3 Human Reproduction
Exercises | Q 16.5 | Page 56

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With the help of diagrammatic representation, explain the process of gametogenesis

What is spermatogenesis? Briefly describe the process of spermatogenesis.

Name the hormones involved in regulation of spermatogenesis.

Name the functions - Acrosome of sperm.

Fill in the blank. 

 Implantation of embryo occurs in ------ 

Fill in the blank.

---------- type of reproduction occurs without fusion of gametes. 

Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.

Answer the following questions in short. 

Which precautions will you follow to maintain the reproductive health? 

In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples. 

Explain the structure of secondary oocyte.

Describe the process of oogenesis in human female.

Describe the process of spermatogenesis with the help of diagram.

At the time of birth, there are _______________ oocytes in the ovary of a female foetus.

In meiosis, the number of chromosomes becomes ___________.

What is gamete formation?

Give scientific reason.

Older women are more likely to give birth to children with some abnormalities.

Give scientific reason.

There is a menopause when women are 45-50 years old.

Explain two main process in sexual reproduction.

If newborns are produced at the age of menopause, they may be with some abnormalities. Why?

In angiosperms, the pollen germinates to produce a pollen tube that carries two gametes. What is the purpose of carrying two gametes when a single gamete can fertilize the egg?

If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?

Sex organs produce gametes which are diploid.

The male sex hormone testosterone is secreted from ____________.

The glandular accessory organ which produces the largest proportion of semen is ____________.

Mammalian egg is ____________.

The process which the sperm undergoes before penetrating the ovum is ____________.

The Androgen Binding Protein (ABP) is produced by ____________.

Answer the following type of question Assertion (A) and Reason (R).

(A) - Head of the sperm consists of acrosome and mitochondria.

(R) - Acrosome contains spiral rows of mitochondria.

Mention the differences between spermiogenesis and spermatogenesis.

Draw a labeled sketch of a spermatozoan.

Define gametogenesis.

Describe the structure of the human ovum with a neat labelled diagram.

Give a schematic representation of spermatogenesis and oogenesis in humans.

Identify the given image and label its parts marked as a, b, c and d

Expand the acronym.


The following is the illustration of the sequence of ovarian events (a-i) in a human female.

Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.

The part labelled as ______ contains the energy source that facilitates sperm motility.

Which is the correct order of steps occurring during spermatogenesis?

Identify the correct stages (P - S) in the given diagram of spermatogenesis.

First meiotic division is observed in ____________.

Which of the following events take place during spermatogenesis?

Find out the CORRECT sequence of spermatogenesis.

Select the pair of cells which does not divide further by mitosis.

How many autosomes does a human primary spermatocyte have?

How many sperms are formed from a secondary spermatocyte?

Middle piece of mammalian sperm possesses ______.

Gray crescent is the area ______.

Preparation of sperm before penetration of ovum is ______.

Head of epididymis is called as ______.

Which of the following are called dual gland?

After the release of the secondary oocyte, the Graafian follicle develops into ______.

Read the following and answer from given below:

Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.

Which cell division is involved in the formation of secondary oocytes?

Aquatic animals in which fertilisation occurs in water are said to be

What does figure represent?

Observe the given figure and answer the questions that follow.

  1. Label A and B.
  2. Identify the process.
  3. What happens during the process and what is formed?

Sperms can be stored for several years in liquid nitrogen with a temperature of ______.

Fetal sex can be determined by examining cells from amniotic fluid looking for:

In the process of fertilization, this is true:

3-celled male gamete develops in:

If for a species 2n = 16, then during Ist prophase and IInd prophase of the meiotic division of a cell, how many tetrads and diads will be formed:

The region of the root tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:

Follicular atresia is:

Human milk differs from cow's milk because human milk contains:

In human females, meiosis II is not completed until:

Which of the following cells during gametogenesis is normally diploid?

Capacitation refers to changes in the ______.

Germ cells present in the seminiferous tubules undergo ______

How many primary oocytes produce one oogonia?

What is spermatogenesis?

Process of maturation and development of sperms ______.

Meiotic division of the secondary oocyte completed ______.

Name the germinal layers from which the following organs develop: Tongue, heart, sweat glands, vagina, mammary glands, kidney.

Sketch and label the process of oogenesis.

Distinguish between human sperm and ovum.


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