Directions: In the following questions, a statement of assertion (A) ...
Chromosomes are short, thick, condensed rod-like structures present in the nucleus which distribute genetic information to the daughter cells. They are capable of self-replication before the cell division and thus are passed to the next generation. They contain genes on them which control the morphological and physiological properties of cells. Thus, the correct answer is option A.
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Directions: In the following questions, a statement of assertion (A) ...
Assertion : Chromosomes are known as hereditary vehicles.
Reason : The chromosomes are capable of self-reproduction and maintaining morphological and physiological properties through successive generations.
Explanation:
Chromosomes are thread-like structures found inside the nucleus of cells. They are made up of DNA and proteins. During cell division, chromosomes replicate and are passed on to daughter cells. They carry genetic information in the form of genes.
Assertion (A) states that chromosomes are known as hereditary vehicles. This is true because chromosomes carry and transmit genetic information from one generation to the next. They contain the instructions for the development and functioning of an organism.
Reason (R) states that chromosomes are capable of self-reproduction and maintaining morphological and physiological properties through successive generations. This is also true. Chromosomes can replicate themselves during cell division, ensuring that the genetic material is accurately passed on to daughter cells. This self-reproduction ensures the continuity of genetic information from one generation to the next. Additionally, chromosomes play a crucial role in maintaining the morphological and physiological properties of an organism by carrying genes that determine its traits and characteristics.
Therefore, both the assertion and reason are true. Furthermore, the reason (R) is the correct explanation of the assertion (A). Without chromosomes, the transmission of genetic information and the maintenance of morphological and physiological properties through successive generations would not be possible.
Hence, the correct answer is option 'A' - Both assertion (A) and reason (R) are true, and reason (R) is the correct explanation of assertion (A).
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