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प्रश्न
Long answer type question.
Describe the different types of chromosomes.
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उत्तर
Following are the four types of chromosomes with respect to the position of the centromere: Acrocentric (j shaped), Telocentric (i shaped), Sub-metacentric (L shaped) and Metacentric (V-shaped).
| Type of chromosome | Name of chromosome | Position of centromere |
 |
Metacentric | Middle of the chromosome |
 |
Sub-metacentric | Some distance away from the centre of chromosomes |
 |
Acrocentric | Near one end of the chromosome |
 |
Telocentric | At one end |
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संबंधित प्रश्न
Mention the contribution of the scientist given below in the study of chromosome:
Waldeyer
Label the lettered parts of the given figure and answer the following questions:
(i) What does this diagram represent?
(ii) What is the importance of'd'?
(iii) What are the 'staining' properties of 'b' and 'c'?
(iv) Who gave the term used for this structure today?
(v) What is a?
(vi) Is 'e' present in all chromosomes?
Draw a duplicate chromosome and label its part.
Name the following:
Microtubules form the bipolar spindle in which stage.
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Name the following:
The pattern of arrangement of genes along a chromosome.
With the help of a neat labelled diagram, describe the structure of chromosome.
A male gorilla has 48 chromosomes in each of its body cells. How many chromosomes will each of the sperms have?
Define the following term:
Chromatid
