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प्रश्न
What is the importance of DNA copying in reproduction? Explain with an example.
उत्तर
DNA copying refers to the replication of DNA at the time of cell division. It plays a very important role in giving rise to slight variations in offsprings in comparison to the parents particularly in asexual reproduction where only single parent is involved.
Example: When a cell divides, the DNA of the cell gets replicated first so that the daughter cells get equal amount of DNA from the parent. DNA replication occurs through biochemical process which is not accurate. Hence, variations are introduced in the DNA during replication. When the cell divides, the daughter cells acquire a slightly different DNA to that of the parent. Therefore, the DNA of the daughter cell is similar to that of the parent but not identical.
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संबंधित प्रश्न
Define reproduction.
State the importance of DNA copying.
Asexual reproduction is :
(a) a fusion of specialised cells
(b) a method by which all types of organisms reproduce
(c) a method producing genetically identical offspring
(d) a method in which more than one parent are involved
State whether the following statement is true (T) or false (F):
Dogs and cats reproduce from two parents.
Give reason for the following:
Vegetative propagation is practised for growing only some type of plants.
Which of the following types require pollinator but the result is genetically similar to autogamy?
The single shield-shaped cotyledon in monocot seed is known as ______.
Nebenkern is ______.
What is the function of inner cell mass?
What is the use of tablet ‘Saheli’?
