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Reproductive System

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Which of the following is not the function of telomere?

  1. It decides the number of cell divisions.

  2. It controls the process of ageing.

  3. It secretes telomerase enzyme.

  4. It helps in recombination.


Correct Option: D
Explanation:

The function of telomere is to decides the number of cell divisions, controls the process of ageing and secretes telomerase enzyme. Recombination is not its function.

According to the position of yolk, ascaris is

  1. centrolecithal

  2. isolecithal

  3. telolecithal

  4. none of the above


Correct Option: B
Explanation:

 Ascaris is isolecithal.

Which type of hormone is oxytocin?

  1. Biogenic amine

  2. Protein hormone

  3. Steroid hormone

  4. Peptide hormone


Correct Option: D
Explanation:

Oxytocin is a peptide hormone.

In which of the following structures is melanin pigment found?

  1. Animal hemisphere of female gamete

  2. Retina

  3. Iris of eye

  4. All of the above


Correct Option: D
Explanation:

 Melanin pigment is found in animal hemisphere of female gamete, retina and iris of eye.

What is Human Telomeric sequence?

  1. TTAGGC

  2. TTAGGU

  3. TTAGGG

  4. ATAGTG


Correct Option: C
Explanation:

 Human Telomeric sequence is: TTAGGG

Rotation of body during metamorphosis is at 90 degree in

  1. herdmania

  2. snails

  3. sea horse

  4. None of these


Correct Option: A
Explanation:

Rotation of body during metamorphosis is at 90 degree in herdmania.

According to the amount of yolk, birds are:

  1. Alecithal

  2. Mesolecithal

  3. Megalecithal

  4. None of the above


Correct Option: C
Explanation:

 Birds are megalecithal.

The spermatids change into sperm. This process is

  1. Spermiogenesis

  2. Spermatogenesis

  3. Oogenesis

  4. Spermatolysis


Correct Option: A
Explanation:

  The spermatids change into sperm. This process is known as spermiogenesis/spermatoleosis.

When ovum is not fertilized then corpus luteum degenerates. It is known as

  1. Corpus albicans

  2. Corpus haemorrhagicum

  3. Corpus luteum of pregnancy

  4. None of the above


Correct Option: A
Explanation:

  When ovum is not fertilized then corpus luteum degenerates . It is called as corpus albicans or Corpus luteum of ovulation.

Human placenta is of which of the following types?

  1. Haemoendothelial

  2. Haemochorial

  3. Epitheliochorial

  4. None of the above


Correct Option: B
Explanation:

 Human placenta is Haemochorial .

Group carnivora has which type of placenta?

  1. Epitheliochorial

  2. Syndesmochorial

  3. Endotheliochorial

  4. None of the above


Correct Option: C
Explanation:

   Group Carnivora has Endotheliochorial.

Hyaluronic acid is found in which of the following structures?

  1. Matrix of connective tissue

  2. Sinovial fluids of joints

  3. Vitreous chamber of eye

  4. All of the above


Correct Option: D
Explanation:

 Hyaluronic acid is found in matrix of connective tissue, sinovial fluids of joints,vitreous chamber of eye.

According to amount of yolk, amphibians are:

  1. Megalecithal

  2. Alecithal

  3. Microlecithal

  4. Mesolecithal


Correct Option: D
Explanation:

 Amphibians are mesolecithal . 

Radial cleavage of embryo is found in:

  1. Protostome

  2. Plasmodium vivax

  3. Deuterostome

  4. None of the above


Correct Option: C
Explanation:

   Radial Cleavage is found in Deuterostomes.

Which of the following cells is in Go phase (permanently arrested phase)?

  1. Somatic cell

  2. Germ cell

  3. Nerve cell

  4. None of the above


Correct Option: C
Explanation:

Nerve cell cannot divide & is in Go phase..

The cell cycle has which of the following sequences?

  1. G1, M, G2, S

  2. M, G1, S, G2

  3. S, G2, G1, M

  4. None of the above


Correct Option: B
Explanation:

 CELL CYCLE SEQUENCE IS M,G1,S,G2.

In which stage, structure of chromosome is studied?

  1. Anaphase

  2. Prophase

  3. Metaphase

  4. Telophase


Correct Option: C
Explanation:

  Structure of chromosome is studied at Metaphase stage.

The space between primary membrane & female gamete is:

  1. Perivitellin space

  2. Pericardial space

  3. Both 1 & 2

  4. None of the above


Correct Option: A
Explanation:

 The space between primary membrane & female gamete is Perivitellin space.

Which structure is formed by ectoderm (germ layer)?

  1. Liver

  2. Thymus

  3. Urinary bladder

  4. None of the above


Correct Option: D
Explanation:

 None of the above mentioned structure is formed by Ectoderm.

The placenta with maximum number of barriers is

  1. Haemochorial

  2. Epitheliochorial

  3. Haemoendothelial

  4. Syndesmochorial


Correct Option: B
Explanation:

 Epitheliochorial has six barriers.

Among the following, which hormone is not secreted by Placenta?

  1. HCG (human gonadotrophic hormone)

  2. Estrogen

  3. Progesterone

  4. FSH (follicle stimulating hormone)


Correct Option: D
Explanation:

 Pituitary secretes FSH.  Placenta secretes  HCG(human gonadotrophic hormone), Estrogen,Progesterone

Kidney is ophisthonephric in:

  1. Reptiles

  2. Birds

  3. Amphibians

  4. Mammals


Correct Option: C
Explanation:

 Kidney is Ophisthonephric in amphibians.

Maximum growth takes place in:

  1. S phase

  2. G1 phase

  3. G2 phase

  4. M phase


Correct Option: B
Explanation:

  Maximum growth takes place in G1 phase.

Central nervous system is formed by which germ layer?

  1. Ectoderm

  2. Mesoderm

  3. Endoderm

  4. All of the above


Correct Option: A
Explanation:

 Central nervous system is formed by Ectoderm.

Torsion is rotation of body parts in metamorphosis at:

  1. 90 degree

  2. 360 degree

  3. 180 degree

  4. 120 degree


Correct Option: C
Explanation:

  Torsion is rotation of body parts at 180 degree.

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