Advertisements
Advertisements
प्रश्न
Read the following paragraph and write the answers to the questions based on it.
Reproduction is an important process for the survival of an organism. Asexual reproduction occurs in different ways in plants. E.g. Vegetative propagation, fragmentation, budding, spore formation etc. Gametes are formed for sexual reproduction. In the animal kingdom, various methods like budding, binary fission, and parthenogenesis are used. There is no difference between males and females in the animals in which these methods are observed. The method of regeneration also creates new organisms. But regeneration is not the real method of reproduction. Regeneration is the process of healing wounds, creating new organs. This ability has completely disappeared in the developed animals. Modern research is being done on the method of sexual reproduction, e.g. Cloning. So, in the future women will be able to create their own offspring without a father.
- How do living organisms maintain their own species continuity?
- What are the methods of asexual reproduction in animals?
- Why is it said that regeneration is not the real method of reproduction?
- What are the different methods of reproduction in plants?
- What modern breeding methods are being researched in developed animals?
उत्तर
- Through the process of reproduction living organisms are able to maintain the continuity of their own species.
- Budding and parthenogenesis are the methods of asexual reproduction in animals.
- Regeneration is the process of healing wounds, creating new organs. This ability has completely disappeared in the developed (higher) animals. Hence, regeneration is not the real method of reproduction.
- Vegetative propagation, fragmentation, budding, spore formation are the different methods of reproduction in plants.
- Cloning is a modern breeding method being researched in developed animals.
संबंधित प्रश्न
Write the type of asexual reproduction shown in the figure.
Draw a neat diagram of the structure of chromosome and label the parts :
1) Centromere
2) p-arm
In the following figure, explain how new fungal colonies mucor are formed:
Identify and state the type of reproduction represented in the above figure.
What is lactation? Which hormone is responsible for its regular secretion?
Define.
Regeneration
Mention the different types of asexual reproduction.
Explain the methods of asexual reproduction.
The type of reproduction in which only a single parent, gets divided into two new offspring, is known as ______.
______ is one of the asexual method of reproduction.
______ is a form of asexual reproduction that results from the outgrowth of a part of the body.
______ is the breaking of an individual into parts followed by regeneration.
Animals exhibiting external fertilisation produce a large number of gametes. Pick the appropriate reason from the following.
Reproduction by budding takes place in
Fill up the blanks with the terms given below :
body | asexual | binary | single | nucleus |
Amoeba is a ______ celled organism. It reproduces by ______ reproduction.
The process of reproduction begins by the division of its ______ into two.
This is followed by the division of its ______ into two. This type of reproduction is called ______ fission.
Which of the following pairs is not correctly matched?
Mode of reproduction. Example
There are thorns of calcium carbonate on the body of the animal named ______.
Which type of reproduction occurs in Hydra?