CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Criticism of Lamarckism

Consider the ...

Question

Consider the following statements and select the correct option according to Neo- Lamarckism.
Statement 1: Environment influences an organism and its heredity.

Statement 2: Internal vital force and appetency do play a role in evolution.

A

Both statements are correct

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Both statements are incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Statement 1 is correct and statement 2 is incorrect

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

Statement 1 is incorrect and statement 2 is correct

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Statement 1 is correct and statement 2 is incorrect
Modified form of Lamarckism is called Neo-Lamarckism. Itb was put forward to take into account the criticisms of Lamarckism.
Neo-Lamarckism proposes that:

Environment does influence an organism and changes its heredity.

At least some of the variations acquired by an individual can be passed onto the offspring.

Internal vital force and appetency do not play any role in evolution.

Only those variations are passed on to the offspring which affect germ cells or where somatic cells give rise to germ cells.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Read the following statements and choose correct answer from codes given below:
I. The outcome of evolutionary process is the adaptation of an organism to its environment.
II. The evolution is the property of population and not of individuals.
III. Natural selection is the evolutionary force.
IV. According to Weismann the changes occurring both in germplasm and somatoplasm are heritable and play an important role in evolution.

Q. Consider the following statements and select the correct option.

Statement I: Analogous organs are the result of convergent evolution.
Statement II: Insect wing and bird wing are homologous organs.
Statement III: The marsupials in Australia and South America are examples of parallel evolution.

Q. With reference to the French revolution, consider the following statements:
1. The middle class and peasants were the prime participants in the revolution
2. Philosophers played a vital role behind this revolution.

Which of the above statements is/are correct?

Consider the following statements relating to evolution and answer the question.

(i) Organisms are products of a history of descent with modification.
(ii) Characteristics acquired by an organism during its lifetime are inherited by its offspring.
(iii) The goal of evolution is to adapt organisms to the environment.
(iv) Evolutionary change is brought about by natural selection.

The theory of evolution presented in Darwin's "The Origin of Species" depended on what combination of these statements?

Q. Consider the following statements about 'Asia-Africa Growth Corridor':
1. It aims to integrate the economies of Asia, Europe and Africa.
2. New Development Bank would play a major role in the funding of the project.
Choose the correct option.

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Criticism of Lamarckism

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon