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प्रश्न
Define the following term:
Chromosome
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उत्तर
The nucleus contains most of the cell's DNA, which is organised into discrete units called chromosomes.
संबंधित प्रश्न
State the difference between:
Chromosome and chromatid:
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:
During mitosis which of the following disintegrate ___________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
The number of chromosomes in a certain type of cell division is halved. This kind of cell division occurs in ______.
(i) Draw a neat labeled diagram to show the metaphase stage of mitosis in an animal cell having ‘6’ chromosome.
(ii) How many daughter cells are formed at the end of mitosis and at the end of meiosis?
(iii) With reference to cell division explain the following terms:
(Chromatid, Centromere, Haploid).
(iv) Name the type of cell division that occurs during:
1. Growth of shoot 2. Formation of pollen grains.
3. Repair of worn out tissues.
Draw a duplicate chromosome and label its part.
Explain the Term Spindle
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
Complete the following sentence with appropriate word :
Chromosomes are _________ material.
Write the functional activity of the following structure:
Chromosome
In humans, the sex chromosome complement is
The region of the chromosome where the spindle fibres get attached during cell division ______
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
In higher unisexual animals, one pair of chromosomes is not identical in two sexes. It is called as ______.
Normally, genes occur in a pair of chromosome, but genes of X and Y chromosomes shows different gene loci indicating ______.
Define Aneuploidy.
