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प्रश्न
Choose the correct answer:
The term 'chromosome' was coined by ___________
पर्याय
Balbiani
Darwin
Waldeyer
Sutton and Boveri
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उत्तर
The term 'chromosome' was coined by Waldeyer
APPEARS IN
संबंधित प्रश्न
The Chromatin material is formed forms of ______.
Choose the correct answer:
Centromere is related to _______________
Mention the contribution of the scientist given below in the study of chromosome:
Strasburger
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
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?
Choose the correct answer:
Telocentric chromosomes are _________________
Enumerate the various changes that occur in the nucleus of the cell during anaphase of mitotic division.
Give Reasons for the following
Chromosomes are the carriers of heredity.
(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.
Explain the Term Centrioles
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
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 are the thickest and shortest in telophase.
Name the following:
Pairs of chromosomes, present in human egg cells.
Explain the structure of chromosomes with labelled diagram.
The centromere is found at the centre of the ______ chromosome.
The loss of one or more chromosomes in ploidy is called ______.
Explain the structure of a chromosome.
Distinguish between the following pair:
Karyotype and Karyokinesis
