English
Karnataka Board PUCPUC Science 2nd PUC Class 12

While creation and presence of variation is directionless, natural selection is directional as it is in the context of adaptation. Comment. - Biology

Advertisements
Advertisements

Question

While creation and presence of variation is directionless, natural selection is directional as it is in the context of adaptation. Comment.

Short/Brief Note
Advertisements

Solution

Creation and variation occur in a sexually reproducing population as a result of crossing over during meiosis and random fusion of gametes. It is however the organisms that are selected over a period of time which are determined by the environmental conditions. In other words, the environment provides the direction with respect to adaptations so that the organisms are more and more fit in terms of survival.

shaalaa.com
  Is there an error in this question or solution?
Chapter 7: Evolution - SHORT ANSWER [Page 49]

APPEARS IN

NCERT Exemplar Biology [English] Class 12
Chapter 7 Evolution
SHORT ANSWER | Q 4. | Page 49
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×