Arrange the following events occurring i...

Arrange the following events occurring in the ovary in the CORRECT sequence
a. The antrum is formed .
b. Formation of a first tiny polar body .
c. The primary follicles get surrounded by more and more layers of granulosa cells.
d. The primary oocytes is arrested in prophase - I of the meiotic division .

d,a b and c

a,c,d and b

d,a, c and b

d ,c ,a and b

Text Solution

AI Generated Solution

The correct Answer is:

To solve the question regarding the correct sequence of events occurring in the ovary during oogenesis, we will analyze each event step by step. ### Step-by-Step Solution: 1. **Event D: The primary oocyte is arrested in prophase - I of the meiotic division.** - This is the initial stage of oogenesis where the primary oocyte, formed from oogonia, enters meiosis and gets arrested in prophase I. This is the first event that occurs. 2. **Event C: The primary follicles get surrounded by more and more layers of granulosa cells.** - After the primary oocyte is formed, it is surrounded by a layer of granulosa cells, forming a primary follicle. As development continues, more layers of granulosa cells surround the primary oocyte, leading to the formation of secondary follicles. 3. **Event A: The antrum is formed.** - As the follicle continues to develop, it transforms into a tertiary follicle, characterized by the formation of a fluid-filled cavity known as the antrum. This event occurs after the primary follicle has developed into a secondary follicle. 4. **Event B: Formation of a first tiny polar body.** - The final step in this sequence is the completion of the first meiotic division, which results in the formation of a large haploid secondary oocyte and a tiny first polar body. This occurs after the antrum has formed. ### Correct Sequence: Thus, the correct sequence of events is: - D (The primary oocyte is arrested in prophase - I of the meiotic division) - C (The primary follicles get surrounded by more and more layers of granulosa cells) - A (The antrum is formed) - B (Formation of a first tiny polar body) The final answer is **D, C, A, B**.

Similar Questions

Explore conceptually related problems

Given below are the steps involved in oogenesis . Arrange them in proper sequence and select the correct option. 1. Formation of primary follicle due to development of granulosa cells. 2 Division of oogonia and formation of the primary oocyte. 3. Formation of follicles having antrum . 4. Formation of secondary follicles. 5. An unequal division leading to the formation of secondary oocyte i.e. ovum and the first polar body .

Arrange the formation of the following cells in the ovary the sequential order : i) Ovum ii) Primary follicle iii) Primary oocytes iv) Graffian follicle

How many of the given statements are incorrect? A. The ovaries are located on each side of the lower abdomen. B. Mons pubis a cushion of fatty tissue covered by skin and pubic hair. C. A primary spermatocyte completes the second meiotic division leading to the formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each. D. The secondary follicles get surrounded by more layers of granulosa cells and a new theca, they are called tertiary follicles.

Arrange the following in the order of their location from periphery to centre in the entire dicotyledonous plant body (a) Fusiform cells (b) Trichoblasts (c) collocytes (d) Tyloses The correct sequence is

The steps involved in spermatogenesis are given below. Arrange them in proper sequence and select the correct option. A. Primary spermatocytes undergo the first meiotic division. B. Spermatogonia multiply by mitotic division. C. Transformation of spermatids into sperms. D. Secondary spermatocytes undergo the second meiotic division. E. Release of sperms from the seminiferous tubules.

Arrange in correct sequence the structures formed during spermatogenesis a) spermatogonia b) Secondary spermatocyte c) Spermatogonial stem cells c) spermatogonial stem cell d) primary spermatocyte e) spermatid

The oogonial cells start dividing and enter into ………A…….of meiotic division and get temporarily arrested at that stage, called ………B……. . During oogenesis at puberty, this oocyte gets surrounded by granulosa cells and then called ……C……..

Read the following and select the incorrect statements: A. The placenta acts as a permanent endocrine tissue and produces several hormones. B. During pregnancy levels of cortisol, prolactin, thyroxine, and estrogen hormones also Increase several folds in maternal blood. C. The second meiotic division of secondary oocyte in females is unequal and results in the formation of a polar body. D. The secondary follicle transforms into a tertiary follicle which is characterized by a fluid - filled cavity called the antrum.

Determine the incorrect statement regarding the process of female gamete production . I. The oogonia keep on adding in the overy till menopause . II. The primary oocytes are halted are prophase -I of meiotic division . III. The fluid-filled cavity present in the secondary follicles is called the atrium. IV. The secondary oocyte forms a membrane called zone glomerulosa around it.

Considering the following labels for mentioned structured and select the correct sequence of their arrangement :- A= Terminal bronhiole B= Respiratory bronchiole C= Tertiary bronchi D= Primary bronchi E= Secondary bronchi F= Total pulmonary bronchioles

Text Solution

Similar Questions

Recommended Questions