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  • 1(current)
Q. No.

Frequency of recombination between gene pairs on same chromosome as a measure of the distance between genes to map their position on chromosome, was used for the first time by:
1.Henking 2.Thomas Hunt Morgan 
3.Sutton and Boveri 4.Alfred Sturtevant 
Q1:
 71% From NCERT NEET - 2023
Subtopic:  Understanding Linkage | Linkage Types | Recombination & Gene Mapping |
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The fruit fly Drosophila melanogaster was found to be very suitable for experimental verification of the chromosomal theory of inheritance by Morgan and his colleagues because:

1.  a single mating produces two young flies
2.  smaller female is easily recognisable from a large male
3.  it completes its life cycle in about two weeks
4.  it reproduces parthenogenetically
Q2:
 90% From NCERT AIPMT - 2010
Subtopic:  Understanding Linkage |
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Lack of independent assortment of two genes A and B in the fruit fly Drosophila is due to:

1. Recombination

2. Linkage

3. Crossing over

4. Repulsion 

Q3:
 84% From NCERT AIPMT - 2004
Subtopic:  Understanding Linkage |
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When a cluster of genes shows linkage behaviour they:

1. Do not show a chromosome map

2. Show recombination during meiosis

3. Do not show independent assortment

4. Induce cell division

Q4:
 80% From NCERT AIPMT - 2003
Subtopic:  Understanding Linkage |
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Independent assortment of genes does not take place when:

1. Genes are located on homologous chromosomes
2. Genes are linked and located on the same chromosome
3. Genes are located on non-homologous chromosome
4. All the above

Q5:
 75% From NCERT AIPMT - 2001
Subtopic:  Understanding Linkage |
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