Questions

Q:

Heritable variation is required for which of the following?

A) Evolution B) Asexual reproduction
C) Mitosis D) Meiosis
 
Answer & Explanation Answer: A) Evolution

Explanation:

Heritable variation is one of the four most important factors that affect whether natural selection can occur. These factors include

1) Heritable variation

2) Descent with modification

3) Struggle for survival, and necessarily if the others are satisfied

4) Survival of the fittest.

Heritable variation allows for possibly beneficial, negative, or even neutral mutations to get filtered during each generation by natural selection--weeding out negative mutations, passing on positive and neutral ones. Without heritable variation, species would quickly fall victim to parasites who take advantage of identical genetic material in a population and evolution would not occur.

Variation is the raw material of evolution.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
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Q:

Hepatitis virus destroys the cells and may cause the disease

A) Jaundice B) Malaria
C) Typhoid D) Elephantiasis
 
Answer & Explanation Answer: A) Jaundice

Explanation:
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Filed Under: Biology

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Q:

Which statement is true of all atoms that are anions?

A) The atom has fewer protons than does a neutral atom of the same element. B) The atom has more protons than electrons.
C) The atom has more neutrons than protons. D) The atom has more electrons than protons.
 
Answer & Explanation Answer: D) The atom has more electrons than protons.

Explanation:

Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negative charge.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , GATE
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Q:

Who is the Author of the book An Unknown Indian?

A) Nirodh C.Chowdhary B) Leo Tolstoy
C) G. B. Shaw D) Mala Sen
 
Answer & Explanation Answer:

Explanation:
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Filed Under: Books and Authors

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Q:

Which is the highest Plateu?

A) Deccan B) Pamir
C) Colorado D) None
 
Answer & Explanation Answer: B) Pamir

Explanation:

Pamir is the highest of all the platues.It is located in Tibet

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Q:

Who is also known as the founder of scientific socialism ?

A) Karl Marx B) Lenin
C) Rousseau D) Engels
 
Answer & Explanation Answer: A) Karl Marx

Explanation:
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Filed Under: World History

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Q:

The US President who was forced to resign due to the Watergate scandal was

Answer

Nixon

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Subject: World History

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Q:

What is the capital of Cuba ?

A) Bayamo B) Amancio
C) Havana D) Sandino
 
Answer & Explanation Answer: C) Havana

Explanation:
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Filed Under: Country Capitals

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