Advertisements
Advertisements
प्रश्न
Long answer type question.
Describe the different types of chromosomes.
Advertisements
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 |
APPEARS IN
संबंधित प्रश्न
What is the importance of meiosis in creating variations?
State how does meiosis maintains chromosome number in a species.
Give a reason for the following:
Gametes must be produced by meiosis for sexual reproduction.
Give Technical Terms
The stage at which synapsis in chromosomes to form bivalents.
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
Name the following:
The pattern of arrangement of genes along a chromosome.
The centromere is found at the centre of the ______ chromosome.
Read the following statements and select the correct option.
Statement I: The densely packed transcriptionally active, light staining region of chromatin is known as 'Heterochromatin'.
Statement II: The loosely packed, dark staining transcriptionally inactive region of chromatin is known as 'Euchromatin'.
Which of the following describes the correct type of chromosome?
X- chromosome: A : : Y-chromosome: В
