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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
Briefly describe the process of spermatogenesis.
______ type of reproduction occurs without fusion of gametes.
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.
Which precautions will you follow to maintain the reproductive health?
Which of the following are known as the nourishing cells present in the seminiferous tubules?
Identify the diploid cell.
First meiotic division is observed in ____________.
Acrosome reaction in sperm is triggered by ______.
After ovulation, Graafian follicle regresses into ______.
Which of the following contains a fluid filled cavity called antrum?
During oogenesis, each diploid cell produces ______.
Head of epididymis is called as ______.
Which of the following are called dual gland?
Aquatic animals in which fertilisation occurs in water are said to be
What does the figure represent?
Fetal sex can be determined by examining cells from amniotic fluid looking for:
If for a species 2n = 16, then during Ist prophase and IInd prophase of the meiotic division of a cell, how many tetrads and diads will be formed:
Growth hormone of pituitary is more effective in ______.
What is the difference between a primary oocyte and a secondary oocyte?
The diagram given below shows the various steps in spermatogenesis.
- Name the parts labelled '1', '2' and '3'.
- Name the process by which part '3' changes to part '4'.
