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प्रश्न
In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples.
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उत्तर
In sexual reproduction, the offspring inherits genetic material from both parents. Therefore, the newborn shows similarities in various characteristics with its parents. These inherited characteristics are transmitted through genes present on chromosomes.
For example:
- A child may have the same eye colour, hair colour, or blood group as one or both parents.
- The shape of the nose, facial features, height, and other physical traits may also resemble those of the parents.
However, due to the combination and recombination of genes from both parents, the offspring is not exactly identical to either parent and shows some variations.
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संबंधित प्रश्न
The fusion of the male and the female gametes is called ______.
Explain the structure of secondary oocyte.
Mammalian egg is ____________.
Describe the structure of the human ovum with a neat labelled diagram.
Identify the diploid cell.
Acrosome reaction in sperm is triggered by ______.
By which process sperms released from the seminiferous tubules?
There is no cell division involved in ______.
Spermiation is the process of the release of sperm from ______.
At what stage of life is oogenesis initiated in a human female?
After the release of the secondary oocyte, the Graafian follicle develops into ______.
What does the figure represent?
Human milk differs from cow's milk because human milk contains:
Germ cells present in the seminiferous tubules undergo ______
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
Process of maturation and development of sperms ______.
In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?
Select a correct pair of cells with identical set of chromosomes.
Match List - I with List - IІ.
| List - I | List - II |
| A. Head | I. Enzymes |
| B. Middle piece | II. Sperm motility |
| C. Acrosome | ΙII. Energy |
| D. Tail | IV. Genetic material |
Choose the correct answer from the options given below:
At the onset of puberty, gonadotropin releasing hormone is secreted by ______.
