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प्रश्न
In markets, eggs of birds are available but never eggs of dogs. why?
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उत्तर
Birds are oviparous, i.e., lay eggs outside their body. So, it is easy to collect their eggs and these are thus available in the market.
On the contrary, dogs are viviparous, i.e., do not lay eggs but give birth to young ones. Their eggs are extremely small and remain inside their bodies.
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संबंधित प्रश्न
Mention the function of Seeds.
Differentiate between the following pair:
Efferent duct and sperm duct
Name the following:
Fusion of sperm and ovum.
Give Technical Term:
Rupture of the follicle and release of the ovum from the ovary.
Explain the process of fertilization.
What is fertilization?
The enzyme involved in penetration of sperm into ovum is ______.
Fertilization takes place in ______.
What are the potential drawbacks in adoption of the IVF method?
- High fatality risk to mother.
- Expensive instruments and reagents.
- Husband/wife necessary for being donors.
- Less adoption of orphans.
- Not available in India.
- Possibility that the early embryo does not survive.
Choose the correct answer from the options given below:
What is karyogamy, also known as amphimixis?
