Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters

Absence of limbs in snakes

Melanisation in peppered moth

Presence of webbed toes in aquatic birds

Lack of pigment in cave-dwelling animals

Solution

Melanisation in peppered moth

Industrial melanism is an adaptation where the moths living in the industrial areas developed melanin pigments to match their body to the soot-covered surroundings. The phenomenon provides an excellent example of operation ofselection in natural conditions. Industrial melanism, therefore, presents an excellent example ofnatural selection (proposed by Darwin), but it is not the example of acquired characters proposed by Lamarck.
In caves, due to absence of light, the body of the animal lacks pigmentation, e.g., Proteus anguinus. In pythons and related snakes rudimentary pelvic girdle and traces of hindlimb are present. They form small clawed projections externally, but internally there are vestiges of an ilium, femur, tibia and a claw. In aquatic birds and flying frog, the feet are webbed which sustain it in the prolonged leaps to which it is adapted

Some More Questions From Evolution Chapter

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Evolution

Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters

Absence of limbs in snakes

Melanisation in peppered moth

Presence of webbed toes in aquatic birds

Lack of pigment in cave-dwelling animals

Some More Questions From Evolution Chapter

Mention the type of nutrition in the cells originated first during the origin of life.

Which group of organisms were responsible for appearance of free oxygen in the atmosphere of the primitive earth ?

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

Name the different eras of geologic time scale.

What is single step large mutation?

Consider a thorn in Bougainvillea and a tendril in cucurbita. Are these two organs homologous or analogous ? Give reason.

Give two examples that represent adaptive radiation.

Which theory attempts to explain to us the origin of universe?

Evolution is a discontinuous process. Is it correct ?

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For Daily Free Study Material Join wiredfaculty

Evolution

Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters Absence of limbs in snakes Melanisation in peppered moth Presence of webbed toes in aquatic birds Lack of pigment in cave-dwelling animals

Some More Questions From Evolution Chapter

Mention the type of nutrition in the cells originated first during the origin of life.

Which group of organisms were responsible for appearance of free oxygen in the atmosphere of the primitive earth ?

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

Name the different eras of geologic time scale.

What is single step large mutation?

Consider a thorn in Bougainvillea and a tendril in cucurbita. Are these two organs homologous or analogous ? Give reason.

Give two examples that represent adaptive radiation.

Which theory attempts to explain to us the origin of universe?

Evolution is a discontinuous process. Is it correct ?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters

Absence of limbs in snakes

Melanisation in peppered moth

Presence of webbed toes in aquatic birds

Lack of pigment in cave-dwelling animals