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प्रश्न
Give Technical Terms
The stage when sister chromosomes separate from their paired condition.
उत्तर
Anaphase
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संबंधित प्रश्न
Correct the following statement if there is any mistake:
If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.
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
Answer the following question in your own words.
What is meant by ‘chromosome’?
Choose the correct answer:
Centromere is related to _______________
Choose the correct answer:
Minimum coiling in chromosome is at ________________
What is the importance of meiosis?
Give Reasons for the following
The meiosis is called reductional division
Explain the Term Spindle
Name the following:
The part of the cell associated with heredity.
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
Complete the following sentence with appropriate word :
The pairing of homologous chromosomes is called _______.
Duplicated chromosomes are joined at a point termed ______.
Multiple Choice Question:
The period between two successive mitotic divisions is
Give Reason:
The Law of independent assortment holds good for the gene pairs that occur in different pairs of chromosomes.
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'.
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
Small swellings on the surface of the chromosome are called______.
In the human male, a sperm contains autosomes and ______.
