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Question 36
From the internet, gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of an organism and answer the following questions.

(a) Do larger organisms have more number of chromosomes/cells?

(b) Can organism with fewer chromosomes reproduce more easily than organisms with more number of chromosomes?

(c) More the number of chromosomes/cells greater is the DNA content. Justify.


Solution

(a) No, there is no relationship between the size of an organism and its chromosome number.

(b) No, the process of reproduction follows a common pattern and is not dependent on the number of chromosomes.

(c) Yes, since the major component of a chromosome is DNA, if there are more chromosomes in a cell, the quantity of DNA will also be more.


Biology
NCERT Exemplar
Standard X

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