Theory of Aquired Inheritance

Q.

List two differences between acquired traits and inherited traits by giving an example of each.

Q.

What is the major advantage of natural selection in a population?

1. survival advantage

2. increase in number of genes

3. more vulnerability of species

4. decrease in number of genes

Q. Which of the following are examples of natural selection?

1. Industrial melanism
2. Antibiotic resistance in bacteria
3. Evolution of wolves to dogs
4. Darwin’s finches

Q.

What are the different types of species concepts?

Q.

Weismann cut off tails of mice generation after generation but tails neither disappeared nor shortened showing that

1. Darwin was correct

2. Tail is an essential organ

3. Mutation theory is wrong

4. Lamarckism was wrong in inheritance of acquired characters.

Q.

Who gave the theory of use and disuse of organs?

Q.

State “Biogenetic law” as proposed by Haeckel.

Q.

Give reasons why acquired characters are not inherited.

Q.

Discontinuous variations are:

1. Mutations

2. Essential features

3. Recombinations

4. Independent assortment

Q. Write short notes based on Lamarckism

Q.

Why are traits acquired during the lifetime of an individual not inherited?

Q.

Height is an example for

1. Continuous variation

2. Discontinuous variation

3. Somatogenic variation

4. Blastogenic variation

Q.

Variation in organisms is due to:

1. Cloning

2. Multiplication

3. Body design

4. Fusions of gametes

Q. Who propounded the biological evolution theory of use and disuse of organs.

Q. Theory of inheritance of acquired characters was given by,

1. Lamarck
2. Darwin
3. Wallace
4. De Vries

Q. The notion behind giraffes possesing long necks was used by ___ to explain his theory on evolution.

1. Darwin
2. Lamarck
3. Mendel
4. Wallace

Q.

Which among the following is / are true regarding the theory of "Use and disue"?

1. Organs that are less used fall of or are not transferred to the next generations

2. Organs used extensively are generally more stronger

3. The function of organs that are not frequently used are ceased in the further generations

4. Strengthening and elongation of organs are a type of variations that the organism exhibits to be naturally selected

Q. Explain Lamarcks theory of use and disuse of organs with suitable examples.

Q. Which bird can not fly?

1. Stork
2. Emu
3. Duck
4. Peacock

Q. Whose doctrine influenced Charles Darwin to formulate theory of natural selection?

1. Malthus
2. Haldane
3. Hardy Weinberg
4. Sewall Wright

Q.

Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics? [3 MARKS]

Q. The theory of inheritance of acquired characters was proposed by

1. Weismann
2. Lamarck
3. De Vries
4. Darwin

Q. Theory of "inheritance of acquired characters" was written by

1. Darwin
2. Lamarck
3. Weismann
4. Aristotle

Q.

The differences observed between various members of a particular species are termed as_____.

Q. The tendency of population to remain in genetic equilibrium may be disturbed by

1. lack of migration
2. lack of mutations
3. random mating
4. lack of random mating

Q. According Lamarckism long necked Giraffes evolved because :

1. Nature selected only long necked animals.
2. Of stretching of necks by short one never many generations.
3. Humans preferred long necked animals
4. Mutation

Q. The theory that environment can bring about changes in individuals was proposed by :

1. Mendel
2. Darwin
3. Lamarck
4. Lyell

Q. After a stroke or brain injury, we can't replace neurons? What is the evolution art significance of this?

Q.

Why do some scientists deny the theory of evolution?

Q. Theory of use and disuse was propounded by :

1. Darwin
2. De Vries
3. Wallace
4. Lamarck