Tag: reproduction in animals

Quizzes (17) Questions (86)

Questions Related to reproduction in animals

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

What is true about regeneration?

  1. Beak in birds

  2. Tails in lizards

  3. Fish fins

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Formation of new cells or tissues from injured parts of the body is called Regeneration. It occurs in plants as well as animals. Regeneration of Beak in birds, tails in lizards, fish fins are best examples of regeneration.

So, the correct option is ‘all the above’.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

Restorative regeneration is common in

  1. Vertebrates

  2. Mostly invertebrates

  3. In some vertebrate groups

  4. In some invertebrate groups
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Formation of new parts of the body, which are lost due to injury or accidents is called Restorative regeneration. It is found in invertebrates.

So, the correct option is ‘in some invertebrate groups’.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

Morphallaxis is

  1. Reconstruction of the whole body

  2. Growth of lost limb

  3. Healing of injury

  4. Regeneration with the help of blastema
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The reconstruction of an entire animal from a small fragment by reorganizing the existing cells, is called Morphallaxis. The regenerated animal is far smaller than the original one after the completion of the process. It grows to attain the normal size. eg:Hydra.

So, the correct option is ‘Reconstruction of the whole body’.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

Restorative regeneration decreases with

  1. Increase in complexity of organisation

  2. Decrease in organisational complexity

  3. Development of hormones

  4. Development of nerves
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Formation of new parts of the body, which are lost due to injury or accidents is called Restorative regeneration. It decreases with increase in complexity of body organisation.

So, the correct option is ‘increase in complexity of organisation’.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

Factors controlling regeneration seem to be

  1. Neural

  2. Hormonal

  3. Both neural and hormonal

  4. Genetic
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Formation of new cells or tissues from injured parts of the body is called Regeneration. It is controlled by epithelial cover, neural trophic factor, and hormones like adrenal and pituitary glands.

So, the correct option is ‘Both neural and hormonal’.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

Mammals can regenerate

  1. Brain

  2. Liver

  3. Lung

  4. Urinary bladder
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Formation of new cells or tissues from injured parts of the body is called Regeneration. It occurs in plants as well as animals and human beings.  In human body, the only organ performs regeneration is liver.

So, the correct option is ‘Liver'.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

Accumulation of cells and formation of a bud at the site of amputation is

  1. Morphallaxis

  2. Reparative bud

  3. Blastema

  4. Both A and B
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A.Morphallaxis - The reconstruction of an entire animal from a small fragment by reorganizing the existing cells, is called Morphallaxis.

B.Reparative bud - Regeneration of buds  in multicellular organisms is called reparative bud.

C.Blastema – A stumpy outgrowth or bulge or formed, by the accumulation of cells, during regeneration of injured part is called Blastema. It is one of the important step in the process of regeneration.

So, the correct option is ‘Blastema’.

Multiple choice biology reproduction in living organisms regeneration asexual modes of reproduction reproduction in animals

Regeneration of a limbs or tail is an example of

  1. Compensatory hypertrophy

  2. Epimorphosis

  3. Morphallaxis

  4. Autotomy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Regeneration of limbs or tail is a epimorphosis regeneration. Replacement of lost organ of the body by proliferating new cells from the surface of the injured part is called Epimorphosis regeneration. eg: Limb in a Salamander, Tail in a Lizard.

So, the correct option is ‘Epimorphosis’.