Reproduction system and Embryology Quiz-17

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NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions. About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus. Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced. .

Q1. Embryologist can draw the fate maps of future organ of embryo in
  •  Blastula
  •  Morula
  •  Early gastrula
  •  Late gastrula
Embryologist can draw the fate maps of future organ of embryo in blastula stage using natural colour patten or vital dyes to show the fate of various germ layers.

Q2. Acrosome is a type of
  •  Lysosome
  •  Flagellum
  •  Ribosome
  •  Basal body
The head of sperm is composed of two regions, i.e, nuclear region and an acrosomal region. Acrosomal regions contains the acrosome, a large lysosome possessing hydrolytic enzymes which help in the penetration of the layers of cells surrounding the egg immediately before fertilization.

Q3. In teloecithal egg
  •  Yolk is present in the centre
  •  Yolk is unevenly distributed
  •  Yolk is absent
  •  Yolk is present all over the ovum
In teloecithal egg, yolk is unevenly distributed and most of the amount of yolk is found at the vegetal pole, e.g., eggs of amphibians.

Q4. In rabbit, head of epididymis present at the head of the testis is called
  •  Vas deferens
  •  Cauda epididymis
  •  Gubernaculum
  •  Caput epididymis
In rabbit head of epididymis present at the head of the testis is called caput epidiymis.

Q5.Which of the following undergoes, the meiosis-I division?
  •  Primary spermatocytes
  •  Secondary spermatocytes
  •  Sertoli cell
  •  Leydig cell

Q6. Which of the following is a mechanical barrier used in birth control?
  •  Tubectomy
  •  Dalcon shield
  • Vasectomy
  •  Diaphragm
Condoms, cervical caps, diaphragms and intrauterine contraceptive devices (IUCDs) are all mechamical irth control devices

Q7.Given below is an incomplete flow chart showing influence of hormones of gametogenesis in human females. A, B, C and D in the chart refers to

  •  A-GnRH, (Gonadotropin Releasing Hormone), B-Oestrogen and progesterone, C-Ovary, D-FSH and LH
  •  A-GnRH, (Gonadotropin Releasing Hormone), B- Progesterone and LH, C-Ovary, D- Oestrogen and FSH
  •  A-GnRH, (Gonadotropin Releasing Hormone), B-FSH and Oestrogen, C-Ovary, D-LH and Progesterone
  •  A-GnRH, (Gonadotropin Releasing Hormone), B- FSH and LH, C-Ovary, D- Oestrogen and Progesterone
The GnRH is secreted by hypothalamus which stimulates the anterior lobe of pituitary gland to secretes LH and FSH. FSH, stimulates the growth of the ovarian follicles and also increases the development of egg/oocytes within the follicle to complete the meiosis-I to form secondary oocyte. FSH also stimulates the formation of oestrogens. LH stimulates the corpus lutem to secretes progesterone. Rising level of progesterone inhibits the release of GnRH, which, in turn, inhibits the production of FSH, LH and progesterone 


Q8.Seminal vesicles are present at the base of
  •  Penis
  •  TBladder
  •  Testis
  •  Prostate gland
Seminal vesicles are present at the base of bladder and joins to the ejaculatory duct. They produces alkaline secretion, which forms 60% of the semen. Their secretion contains, fructose, prostaglandin and clotting factor

Q9.The female structures that corresponds (homologous) to the scrotum of the male are
  •  Labia Minora
  •  Labia majora
  •  Clitoris
  •  Urethral folds
Labia majora (female external genitalia) homologous to the scrotum of male

Q10. Which of the following represents a condition, where the motility of the sperms is highly reduced?
  •  Oligospermia
  •  Athenospermia
  •  Azoospermia
  • Poolyspermy
Athenospermia is the condition where the motility of sperms is highly reduced. The condition of presence of completely non-motil sperms in human semen is known as necrospermia. The condition when less number of sperms is found in semen is termed as oligospermia. The penetration of many sperms into an ovum simultaneously is termed as polyspermy

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Reproduction system and Embryology Quiz-17
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