How do you express the meaning of words | Class 12 Biology Chapter Evolution, Evolution NCERT Solutions

Question:

How do you express the meaning of words like race, breed, cultivars or variety?

Answer:

Race: It is a permanent breed within the species and this is considered equivalent or subordinate to the subspecies. The races different in height, pigmentation, shape of hands, hair, eyes, nose etc. They freely interbreed as they have geographical or physiological barrier for it; in this members from different races can interbreed.

Breed: It is specific group of domesticated animals. They are homogenous in appearance (uniform structure and shape) and also homogenous in behaviour and have different distinguishable characters which make them unique from other members of the species.

Cultivar: This is the basic classification category of the cultivated plants. Cultivar is also known as cultivated variety which is an assemblage of the plants selected for desirable characteristics by the process of selective breeding (is an artificial selection used to develop new organisms with desirable characteristics).

Variety: Members of the variety do not breed with members of other subspecies or variety but they can fertile offspring under the natural conditions. It is a breeding group of species having specific features which make them separate and unique from other members of the species.


Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Evolution.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 9: How do you express the meaning of words like race, breed, cultivars or variety?....