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Q:

Lamarck's theory of inheritance of acquired characters was challenged by 

A) August Weismann B) Hugo de Vries
C) Herbert Spencer D) Carl Linnaeus

Answer:   C) Herbert Spencer



Explanation:

August Weismann cut off the tails of mice for 21 successive generations and still they produced generation after generation of only tailed young ones. So he concluded that acquired characters are not inherited.

Subject: Biology
Q:

Which one of the following vitamins is known as the anti sterile factor  ?

A) Ascorbic acid B) Riboflavin
C) Niacin D) Retinol
 
Answer & Explanation Answer: B) Riboflavin

Explanation:
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Q:

The sex of a newborn baby is determined by the chromosome inherited from

A) The Father B) The Mother
C) The Father's Father D) Both A & B
 
Answer & Explanation Answer: A) The Father

Explanation:
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Q:

Oath taken by medical graduates is given by-

A) Theophrastus B) Aristotle
C) Darwin D) Hippocrates
 
Answer & Explanation Answer: D) Hippocrates

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Q:

During rainy season wooden doors are difficult to open or closure because of  ?

A) Imbibition B) Plasmolysis
C) Diffusion D) Osmosis
 
Answer & Explanation Answer: A) Imbibition

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Q:

The water readily available to plants for absorption by roots is

A) Gravitational water B) Rain water
C) Hygroscopic water D) Capillary water
 
Answer & Explanation Answer: D) Capillary water

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