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प्रश्न
Give Reasons for the following
The meiosis is called reductional division
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उत्तर
The meiosis is called reductional cell division since the four daughter cells formed have half the number of chromosomes than the mother cell.
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संबंधित प्रश्न
Choose the best option out of the four alternatives a, b, c and d
Question 1:
The number of chromosomes in a certain type of cell division is halved. This kind of cell
division occurs in.
(a) Only testis
(b) Only ovary
(c) Both ovary and testis
(d) All body cells
During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
Chromosomes are mainly made up of ______.
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
State how does meiosis maintains chromosome number in a species.
Draw a duplicate chromosome and label its part.
Explain the Term Zygotene
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Give Technical Terms
The stage at which synapsis in chromosomes to form bivalents.
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
With the help of a neat labelled diagram, describe the structure of chromosome.
Nullisomy is represented by ______.
The thin thread-like structures found in the nucleus of each cell are called ______.
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
In the human male, a sperm contains autosomes and ______.
