Tag: regeneration

Quizzes (1) Questions (53)

Questions Related to regeneration

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

Morphallaxis is reported in

  1. Porifers

  2. Coelenterates and flatworms

  3. Nemarteans and some ascidians

  4. All the above
Reveal answer Fill a bubble to check yourself
D 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. It is reported in Porifers, Coelenterates, flatworms, Nemarteans, and some ascidians.

So, the correct option is ‘Porifers, Coelenterates, flatworms, Nemarteans, and some ascidians’.

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

Formation of whole body from a fragment is

  1. Morphallaxis

  2. Epimorphosis

  3. Epigenesis

  4. Auxetic growth
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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

B.Epimorphosis - The regeneration of tissues or organs through the dedifferentiation of existing, differentiated adult tissues

C.Epigenesis - The theory, now generally held, that an embryo develops progressively from an undifferentiated egg cell.

D. Auxetic growth – Growth takes place by the influence of auxins.

So, the correct option is ‘Auxetic growth’.