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Lack of independent assortment of two ge...

Lack of independent assortment of two genes A and B in fruit fly Drosophila is due to

A

Repulsion

B

Recombination

C

Linkage

D

Crossing over

Text Solution

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The correct Answer is:
C
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Independent assortment of genes does not take place when:

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Assertion: Law of independent assortment holds good for the gene pairs that occur in different pairs of the chromosomes. Reason: It is the chromosome and not the individual gene which segregates during gamete formation.

Mendel's law of independent assortment holds good for genes situated on the

Mendel's law of independent assortment holds good for genes situated on the

Describe the two situations in which the independent assortment of genes results in 50 per cent recombination.

Select the correct option w.r.t law of independent assortment (a) It can be explained by using monohybrid cross (b) Inheritance of one character is dependent on another character (c) This law is not applicable universally (d) It was proposed by Bateson

T.H. Morgan while going on walk, found a fruit covered with flies. He took the flies to the laboratory. He performed experiments for several generations and was surprised to observe that some characters do not obey Mendelian principle of independent assortment. Draw the diagram of physical basis of this type of inheritance.

T.H. Morgan while going on walk, found a fruit covered with flies. He took the flies to the laboratory. He performed experiments for several generations and was surprised to observe that some characters do not obey Mendelian principle of independent assortment. Fill in the blanks: The tendency of certain traits of two characters to be inherited together generation after generation is called __. The tendency of traits of two characters to separate in certain generations is______.

Mendel law of independent assortment does not hold true for the genes that are located closely on

AAKASH INSTITUTE ENGLISH-PRINCIPLES OF INHERITANCE AND VARIATION-Assignment (SECTION-C) Previous Years Questions
  1. In Drosophila, the sex is determined by

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  2. One of the parents of a cross has mutation in mitochondria. In that cr...

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  3. Lack of independent assortment of two genes A and B in fruit fly Droso...

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  4. What kind of evidence suggested that man is more closely related with ...

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  5. The recessive genes located on X-chromosome in humans are always

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  6. A male human is heterozygous for autosomal genes A and B and is also h...

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  7. A self-fertilizing trihybrid plant forms :-

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  8. There are three genes a, b, c, percentage of crossing over between a a...

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  9. The linkage map of X-chromosome of fruit fly has 66 units, with yellow...

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  10. In a plant, red fruit (R ) is dominant over yellow fruit (r ) and tall...

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  11. A normal visioned woman, whose father is colour bline, marries a norma...

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  12. Hugo de Vries gave his mutation theory on organic evolution while work...

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  13. Triticale the first man made cereal crop has been obtained by crossing...

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  14. Out of A-T,G-C pairing bases of DNA may exist in alternate valency sta...

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  15. The most striking example of point mutation is found in a disease call...

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  16. Identify the one, which causes gene mutation

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  17. mutations are mainly responsible for controlling :

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  18. Which of the following is the main category of mutation?

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  19. Change in the sequence of nucleotide in DNA is called as

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  20. When a cluster of genes show linkage behaviour they

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