Identify the incorrect statement regarding female reproductive system?
1. | The first meiotic division of a primary oocyte forms two secondary oocytes that remain in this stage unless fertilization occurs. |
2. | Uterine tube, fallopian tube, and oviduct are terms used to refer to the same organ. |
3. | Menopause marks the termination of both menstruation and ovulation. |
4. | An ectopic pregnancy is an implantation of the blastocyst in a site other than the uterus. |
Given below is a diagrammatic sketch of a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C, D:
(a) |
Ureter |
Prostate |
Seminal vesicle |
Bulbourethral gland |
(b) |
Vas deferens |
Seminal vesicle |
Prostate |
Bulbourethral gland |
(c) |
Vas deferens |
Seminal vesicle trial gland |
Bulboure |
Prostate |
(d) |
Ureter |
Seminal vesicle |
Prostate |
Bulbourethral gland |
1. (a)
2. (b)
3. (c)
4. (d)
1. primary spermatocytes
2. secondary spermatocytes
3. spermatids
4. spermatogonia
Extrusion of the second polar body from the egg nucleus occurs:
1. | simultaneously with the first cleavage |
2. | after entry of sperm but before fertilization |
3. | after fertilization |
4. | before entry of sperm into the ovum |
Select the correct sequence for the transport of sperm cells in the male reproductive system:
1. | Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → Urethral meatus |
2. | Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra |
3. | Seminiferous tubules → Rete testis → Vasa efferentia → Epididymus → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus |
4. | Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra |
Which of the following groups of hormones produced in women only during pregnancy ?
1. hCG, hPL, relaxin
2. Estrogen, progesterone, hCG
3. Cortisol, prolactin, thyroxine
4. Prolactin. progesterone, hCG
The stem cells which have potency to give rise to all tissues and organs are formed from
1. Trophoblast
2. Umbilical cord
3. Inner cell mass
4. Placenta
Identify the hormones that are secreted in large amount prior to ovulation :
A. LH B. FSH
C. Estrogen D. Progesterone
1. A only
2. A & B only
3. A,B & C only
4. A,B,C & D
Which one of the following statements is incorrect about menstrual cycle ?
1. The first menstruation begins at puberty and is called menarche
2. Lack of menstruation may also occur due to some environmental factors like stress, poor health
3. Corpus luteum secretes large amounts of progesterone which is essential for maintenance of endometrium
4. In absence of fertilisation, corpus luteum degenerates in luteal phase and new follicles start developing immediately
A change in ovum after penetration of sperm is
1. Formation of first polar body
2. Second meiosis starts
3. First meiosis
4. Formation of second polar body