Reproduction test 1

The epididymis is a crucial part of the male reproductive system and plays a significant role in the maturation and storage of sperm.

Positioned on the back of each testis, the epididymis consists of a highly coiled duct with an uncoiled length of approximately 6m/20 feet.

Here, the sperm temporarily reside while they are nourished and acquire the ability to swim. Thus, the correct answer is A, "Epididymis".

The primary oocyte initiates the first meiotic division but pauses it at a certain stage.

This event occurs during Prophase-I, which is the initial stage of meiosis.

As such, the right answer is A, "Prophase-I".

Luteinization is a critical event in the menstrual cycle occurring on a specific day.

It typically occurs on the 14th day of the menstrual cycle.

Hence, the correct answer is C, "14th day".

The acrosome, produced by the Golgi apparatus, contains a specific hydrolytic enzyme.

This enzyme, hyaluronidase, is crucial for enabling sperm to penetrate and enter an egg.

Therefore, the right answer is A, "Hyaluronidase".

The prostate gland, which encircles the urethra just below the bladder, has a crucial role in the male reproductive system.

Its secretion is characterized by a slightly acidic nature, including citrate as a nutrient source and several enzymes, especially hyaluronidase.

Thus, the correct answer is C, "Acidic".

After ovulation, the ruptured follicles, specifically the Graafian follicle, undergo a transformation.

This develops into a yellowish, glandular structure known as the corpus luteum, which is responsible for the secretion of progesterone.

Therefore, the correct answer is B, "Corpus Luteum".

Ovulation is a significant event in the menstrual cycle, happening on a specific day.

In an average menstrual cycle of 28 days, ovulation typically occurs on the 14th day before the start of the next cycle.

Consequently, the correct answer is B, "14th day".

A human egg comes equipped with a certain amount of food storage.

The stored nutrients typically last for a period of 1-2 days.

Therefore, the correct answer is A, "1-2 days".

Both gonadotropins and ovarian hormones fluctuate throughout the menstrual cycle.

Their levels are at the lowest near the onset of menstruation.

As such, the correct answer is A, "Near the menstruation".

Reproduction is an essential biological process that ensures the continuity and survival of entities.

It is critical for both the survival of individual organisms and the perpetuation of species.

Therefore, the correct answer is D, "Both A and B".

The amount of semen that a human male ejaculates during a single instance varies.

On average, the volume of semen typically falls around 5cm3.

Consequently, the correct answer is B, "5cm3".

The menstrual cycle is divided into different phases, each with its unique duration and hormonal fluctuations.

The secretory phase is considered to be the longest among these stages.

Therefore, the correct answer is B, "Secretory phase".

The ovaries, part of the female reproductive system, are almond-shaped structures of certain dimensions.

Typically, an ovary measures between 3 to 5 cm in length.

Hence, the correct answer is C, "3-5 cm".

Leydig cells play a crucial role in the male reproductive system, particularly in the production of testosterone.

These cells are stimulated to release testosterone by a specific hormone.

This hormone is GnRH, making the correct answer D, "GnRH".

Oxytocin is a significant hormone in the female reproductive system, and its release is prompted by specific factors.

While stretching of the uterus and cervix, along with low levels of progesterone, contribute to oxytocin's release, low levels of testosterone do not.

Therefore, the correct answer is C, "Low level of testosterone".

The discovery of the human ovum marked a significant advancement in our understanding of female reproduction.

This milestone was achieved in 1928 by a specific scientist.

The scientist responsible for this critical discovery was Edgar Allen, making the correct answer B, "Edgar Allen".

Sertoli cells, part of the male reproductive system, play a critical role in regulating spermatogenesis by producing a specific substance.

This substance ensures the process of sperm production proceeds at a normal rate.

This substance is Inhibin, hence the correct answer is A, "Inhibin".

Sperm production is a constant process in a healthy man, with a specific number of sperm produced daily.

This figure, while varying among individuals, is generally estimated to be quite substantial.

In this case, the correct answer is D, "400 million".

A sperm cell comprises different parts, each varying in size and function.

One part is distinctly longer than the others, contributing to the distinctive shape of the sperm.

This part is the Tail, making the correct answer D, "Tail".

During oogenesis, a secondary oocyte begins the second meiotic division but is halted at a specific stage.

This arrest occurs until the secondary oocyte encounters a sperm cell in the fallopian tube.

The correct answer is B, "Metaphase-II", as it is at this stage that the secondary oocyte pauses its meiotic division.

The follicle-stimulating hormone (FSH) plays a pivotal role in the reproductive system.

This hormone, secreted by the pituitary gland, is responsible for stimulating the growth of a specific structure.

The structure that FSH stimulates is the Graafian follicle, making the correct answer C, "Graafian follicle".

During ejaculation, a specific volume of semen, containing numerous sperm cells, is expelled.

The actual sperm count can vary, but it's typically within a defined range per millilitre of semen.

In this case, the correct span is B, "20 - 150 Million".

The vagina, a crucial part of the female reproductive system, is a thin-walled tube with a specific length.

This structure extends from the cervix to the body's exterior, serving various reproductive functions.

The correct measurement for the length of the vagina is C, "8-10cm".

Unlike males where sperm production begins at puberty, the production of eggs in females starts at a different stage.

This critical process commences well before adulthood, with the total egg capacity set at a particular life stage.

The correct answer is C, "Birth", signifying that the total egg capacity in females is established at the time of birth.

The menstrual cycle, a vital aspect of female fertility, progresses through several distinct stages.

Each stage unfolds in a specific order, contributing to the overall reproductive process.

The correct sequence is C, "Follicular phase → ovulation → luteal phase → menstruation".

The female reproductive system comprises of a duct that serves a vital role in egg transport.

This duct stretches a certain length and goes by several names.

In this case, all options A, B, and C refer to the same structure, making D, "All of the above" the correct answer.

The uterus is partitioned into distinct layers, each serving unique functions.

One such layer is the middle muscular layer, and it plays a vital role during childbirth.

This layer is known as the Myometrium, making B, "Myometrium" the correct answer.

The classification of bacteria based on the Gram stain test is a fundamental aspect of microbiology.

Among the options provided, one, both, or none could be categorized as gram-negative bacteria.

However, only Neisseria Gonorrhoeae is a gram-negative bacterium, hence A, "Neisseria Gonorrhoeae" is the correct answer.

Ovulation, a key phase in the female reproductive cycle, is triggered by certain hormonal changes.

The correct answer is D, indicating that ovulation typically occurs on the 14th day and takes less than 5 minutes.

The correct term for the reproductive cycle in human beings and other primates is C, "Menses".

The correct answer is B, "Syphilis", which is the disease that produces a painless, red primary lesion known as a chancre.

The correct size of the human ovum is approximately 100µm, hence option C is the correct answer.

The vasa differentia carry the sperm to a particular structure, and the correct answer is D, "Ejaculatory Duct".

The correct term for the cessation of the female menstrual cycle around the age of 50 is B, "Menopause".

The discovery of human sperm in 1677 is credited to the scientist C, "Leeuwenhoek".