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प्रश्न
Explain the term Reproduction.
उत्तर
The fundamental characteristics of living things to produce new individuals of the same species, that is a new generation of the species from an existing individual is known as reproduction.
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संबंधित प्रश्न
Why is variation beneficial to the species but not necessarily for the individual?
Egg laid after fertilisation is made up of a single cell.
Amoeba reproduces by budding.
Find the odd one out:
Amoeba, Euglena, Planaria, Paramoecium
Which type of reproduction :
involves gametes?
What is the basic difference between asexual reproduction and sexual reproduction?
What is a clone? Why do offsprings formed by asexual reproduction exhibit remarkable similarity?
What is meant by reproduction?
What are the two general methods of reproduction in organisms?
What is the importance of DNA copying in reproduction? Explain with an example.
In the list of organisms given below, those which reproduce by the asexual method are :
(i) banana
(ii) yak
(iii) yeast
(iv) Amoeba
(a) (ii) and (iv)
(b) (i), (iii) and (iv)
(c) (i) and (iv)
(d) (ii), (iii) and (iv)
Reproduction is essential for living organisms in order to ______
Imagine all the seeds produced by a plant happen to fall under the same plant and sprout into new plants. Mention any two problems that will be faced by the new plants.
Find the odd-one out, giving reason.
Gamete, budding, fragmentation, regeneration.
Why is reproduction necessary for living organisms?
What do you mean by ‘Connecting Links’? Give one example.
Multiple choice question.
In ovule, meiosis occurs in ______
Multiple choice question.
The ploidy level is not the same in ______.
Multiple choice question.
In angiosperms, endosperm is formed by/ due to ______
Multiple choice question.
Point out the odd one.
Multiple choice question.
Presence of beard in boys is a _______.
Sporoderm is made up of ______.
The number of meiotic and mitotic divisions necessary for development of female gametophyte in angiosperms is ______.
The single shield-shaped cotyledon in monocot seed is known as ______.
The example of dicot endospermic seed is ______.
Explain heterostyly and herkogamy with suitable example.
Draw a well labelled diagram of the monocot seed you have studied.
Nervous system develops from ______ of embryonic layer.
Match the following.
| Column I | Column II |
| Fission | Spirogyra |
| Budding | Amoeba |
| Fragmentation | Yeast |
Identify the chromosome number of the endosperm in the following case. In an angiosperm a female plant having 2n = 24 is crossed with a male plant having 2n = 12.
Assertion and Reason types of Question.
Assertion: In potatoes, shoot arises from eyes.
Reason: Eyes represent the buds.
Which of the following nucleus is unlike other nuclei in the female gametophyte of angiosperms?
