The figure given below shows the sectional view of ovary. Select the option which gives correct identification of marked structure ( $A$ to $D$ ) and its feature.
$A:$ Primary follicle, it is also called gamete mother cell.
$B:$ Corpus luteum, it cannot be formed and added after birth.
$C:$ Grafian follicle, mature follicle which ruptures to release secondary oocyte.
$D:$ Tertiary follicle, a large number of this follicle degenerates during the phase from birth to puberty.
Ovum is
Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?
$(a)$ It results in the formation of haploid gametes
$(b)$ Differentiation of gamete occurs after the completion of meiosis
$(c)$ Meiosis occurs continuously in a mitotically dividing stem cell population
$(d)$ It is controlled by the Luteinising hormone (LH) and FollicleStimulating Hormone (FSH) secreted by the anterior pituitary
$(e)$ It is initiated at puberty
Choose the most appropriate answer from the options given below:
$A$ -Spermatids formed from secondary spermatocytes.
$R$ -The spermatids are transformed into spermatozoa by the process called spermiogenesis.
Identify the correct labeling in the diagram
Graafian follicle are characteristically found in the