How do Organisms Reproduce? - Class 10 - Science
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Back Questions - How do Organisms Reproduce? | NCERT | Science | Class 10
Asexual reproduction takes place through budding in
(a) Amoeba.
(b) Yeast.
(c) Plasmodium.
(d) Leishmania.
Asexual reproduction through budding takes place in (b) Yeast. In yeast, the budding process involves the formation of a bud, which is a small outgrowth on the parent yeast cell. This bud then enlarges, matures, and eventually detaches from the parent cell to become an independent yeast cell. This type of asexual reproduction allows for rapid multiplication and is a common way for yeast to propagate.
Which of the following is not a part of the female reproductive system in human beings?
(a) Ovary
(b) Uterus
(c) Vas deferens
(d) Fallopian tube
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Sign up nowThe anther contains
(a) sepals.
(b) ovules.
(c) pistil.
(d) pollen grains.
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Sign up nowExtra Questions - How do Organisms Reproduce? | NCERT | Science | Class 10
State how the sperm is structurally adapted to reach and penetrate the ovum.
The sperm is structurally specialized to efficiently reach and penetrate the ovum:
Tail functionality: The sperm is equipped with a tail that acts as a propeller, enabling the sperm to move forward towards the ovum.
Energy supply in the mid-piece: The mid-piece of the sperm contains a high concentration of mitochondria. These mitochondria generate the necessary energy required for the tail's movement through ATP (adenosine triphosphate).
Acrosome's role in the head: The head of the sperm houses the acrosome, a specialized structure similar to a lysosome. The acrosome contains enzymes that break down the outer membrane of the ovum, allowing the sperm to penetrate it.
Entry during fertilization: It is primarily the head and the middle piece of the sperm that enter the ovum to achieve fertilization, each contributing essential genetic material and energetic support, respectively.
Through these adaptations, the sperm is effectively equipped to reach the ovum and facilitate fertilization.
During mitosis, homologous chromosomes pair up and separate.
A) True
B) False
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Sign up nowWhich is the key feature for the members of a species?
A) Ability to interbreed
B) Similar size
C) Almost the same genotype
D) Similar appearance
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Sign up nowFormation of RNA over the template of DNA is:
A) Replication B) Translation C) Transversion D) Transcription
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