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प्रश्न
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
विकल्प
Inheritance
sexual reproduction
asexual reproduction
chromosomes
DNA
RNA
gene
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उत्तर
The component which is in the nuclei of cells and carries the hereditary characteristics is called a chromosome.
APPEARS IN
संबंधित प्रश्न
Name the following:
The number of chromosomes present in a nerve cell of a human being.
The term “chromosomes” literally means ______.
Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.
Chromosomes are mainly made up of ______.
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
Enumerate the various changes that occur in the nucleus of the cell during anaphase of mitotic division.
(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.
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes other than sex-chromosomes are autonomous.
Name the following:
Cells having a single set of chromosomes.
Give the example of X- monosomy you have studied.
Define the following term:
Chromosome
Aneuploidy refers to ______.
Which of the following describes the correct type of chromosome?
X- chromosome: A : : Y-chromosome: В
