Theory of Panspermia and Chemical Evolution

Q.

The concept of chemical evolution is based on:

1. Origin of life due to a combination of chemicals.

2. Crystallization of chemicals under extreme cold.

3. Interaction of water, air and clay under intense heat.

4. Effect of solar radiation on chemicals.

Q.

How does molecular evidence support evolution?

Q.

Difference between Organic and inorganic materials. Name some inorganic and organic material.

Q.

What are the two main gases present in air?

1. Nitrogen, Oxygen

2. Oxygen, carbon dioxide

3. Hydrogen, Carbon dioxide

4. Helium, Xeon

Q.

What experiment did Weismann perform?

Q.

What is Miller Urey experiment

Q. State the main postulates of Lamarck's theory. (2 Marks)

Q.

Who performed the famous experiment to prove that the origin of life was from inorganic substances?

1. Oparin and Haldane

2. Urey and Miller

3. Redi and Pasteur

4. Aristotle and Einstien

Q. According to the theory of abiogenesis, primitive Earth’s atmosphere, devoid of life, consisted of a mixture of:

1. Oxygen, hydrogen, methane, ammonia
2. Water vapour, hydrogen, ammonia and methane
3. Ozone, oxygen and water vapour
4. Hydrogen, carbon dioxide, ammonia

Q.

According to Urey and Miller experiment life originated from non-living matters

1. True

2. False

Q. Theory of _________ argues that life originated on some other planet and accidentally reached earth.

1. Panspermia
2. Chemical Evolution
3. Use and Disuse
4. Natural Selection

Q. What did the Miller-Urey experiment prove?

1. That life arose on the Earth through abiogenesis.
2. That life could have arisen on the Earth through biogenesis.
3. That life on the Earth did not arise through abiogenesis.
4. It proved none of the above.

Q. The most accepted theory on the origin of life, is the theory of biochemical evolution.

1. True
   
2. False

Q. To which of the following categories did the first formed cells of the primitive earth belong?

1. Chemotrophs
2. Autotrophs
3. Saprotrophs
4. None of these

Q.

Name the following:

1. A specific part of a chromosome that determines hereditary characteristics.

Q.

Is RNA a life?

Q. Which of the following theories on the origin of life is mostly accepted?

1. Special creation
2. Steady state
3. Panspermia
4. Chemical origin

Q. Justify "Evolution should not be equated with 'progress".

Q.

An experiment to prove that organic compound where the basis of life was performed by:

1. Miller

2. Lysenko

3. Mendel

4. Huxley

Q. Evolution can take place without variation.

1. True

2. False

Q. Very Short Answer Types :
What important events take place in interphase?

Q. ‘Comparative study of structure gives evidence to evolution’. Evaluate this statement.

Q. According to Darwin's theory of natural selection, the organisms that adapt themselves better to the environment

1. Are most likely to evolve
2. Are more likely to survive and reproduce
3. Are most likely to live the longest
4. Are the fastest organisms
5. Have the same chance of survival as other organisms

Q. Who first conducted experiment on evolution to prove biochemical origin of life?

1. Miller and Urey
2. Darwin
3. Lamarck
4. Weismann

Q. The category of molecules produced by the Miller-Urey experiment was

1. Organic polymers
2. Organic monomers
3. Inorganic polymers
4. Inorganic monomers

Q.

In the first chapter of the Biology 1st module of introduction it is said that the non living things can create the one living cell and after some explanation it is said that non living things cannot create any of the living thing. why?

Q. Which of the following gases was sealed in the spark chamber in the famous Miller and Urey simulation experiment?

1. Oxygen
2. Carbon dioxide
3. Methane
4. Carbon monoxide

Q. The first life forms on Earth were

1. Photoautotrophs
2. Chemotrophs
3. Cyanobacteria
4. Autotrophs

Q.

How are the hereditary changes responsible for evolution?

Q. Miller-Urey experiment is associated with

1. Chemical evolution
2. Biological evolution
3. Molecular phylogeny
4. None of the above