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8. Heredity
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वे कौन से विभिन्न तरीके हैं जिनके द्वारा एक विशेष लक्षण वाले व्यष्टि जीवों की संख्या समष्टि में बढ़ सकती है।
Option A
Option B
Option C
Option D
Solution
Individuals with a particular trait may increase in a population as a result of the following :
$(i)$ Natural selection : When that trait offers some survival advantage.
$(ii) $ Genetic drift : When some genes governing that trait become common in a population.
$(iii)$ When that trait gets acquired during the individual’s lifetime.
Standard 10
Science
