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The number of autosomes in a normal huma...

The number of autosomes in a normal human cell is :

A

44

B

45

C

46

D

48

Text Solution

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The correct Answer is:
a
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Chromosomal disorders are caused due to absence or excess or abnormal arrangement of one or more chromosomes. Failure of segregation of chromatids during cell division cycle results in the gain or loss of a chromosome, and is called aneuploidy. Failure of cytokinesis after telophase stage of cell division results in an increase in a whole set of chromosomes in an organism and, this is known as polyploidy. There are a total number of .......... pairs of autosomes in a normal human cell.

MODERN PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATION-COMPETITION FILE (OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS (MCQs):)
  1. In a dihybrid cross where two parents differ in two pairs of contrasti...

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  2. The colour based contrasting traits in seven contrasting pairs, studie...

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  3. The number of autosomes in a normal human cell is :

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  4. Down's syndrome is associated with trisomy of chromosome number:

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  5. The syndrome in which individual somatic cell contains three sex chrom...

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  6. Antibodies resemble which of the following shape?

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  7. When yellow round heterozygous pea plants are self fertilised, the fre...

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  8. In XO type of sex determination

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  9. Who used the frequency of recombination between gene pairs on the same...

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  10. Sickle cell anaemia is caused by the subsitution of :

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  11. Who postulated the "Chromosomes" Theory of Inheritance Or The beha...

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  12. If two persons with 'AB' blood group marry and have sufficiently large...

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  13. Which Mendelian idea is depicted by a cross in which the F(1)-generati...

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  14. If both parents are carriers for thalassaemia, which is an autosomal ...

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  15. Which of the following statements is not true of two genes that show 5...

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  16. To analyse the genotype of an organism,it is made to:

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  17. In Mendel's seven characters of Pea, total number of colours tested by...

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  18. Heterogemete is the where an individual produce two types of gametes. ...

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  19. Choose a false statement with reference to sickle cell anaemia:

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  20. A man whose father was colour blind marries a woman who had a colour b...

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