6.Evolution
medium

જનીનિક ડિફટ (જનીનિક વિચલન) ક્યારે સંચાલિત હોય છે ?

A

નાની અલગ કરેલ વસતિ

B

મોટી અલગ કરેલ વસતિ

C

અપ્રજનનીય વસતિ

D

ધીમી પ્રજનનીય વસતિ

(NEET-2016)

Solution

(a) : The random changes in gene frequencies in a population occurring by chance alone rather than by natural selection are called genetic drift or Sewall wright effect. The effects of genetic drift are most marked in very small isolated population, although it occurs in all populations.

Standard 12
Biology

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