Question
Explain the contribution of Alfred Sturtevant in ‘Chromosome mapping’.
✓
Answer
Alfred Sturtevant used the frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes and mapped their position on the chromosome.
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Similar questions
Identify ‘a’, ‘b’, ‘c’, ‘d’, ‘e’ and ‘f’ in the table given below:
|
S. No.
|
Syndrome
|
Cause
|
Characteristics of affected individuals
|
SexMale/ Female/ Both
|
|
1.
|
Down’s
|
Trisomy of 21
|
‘a’-
(i)
(ii)
|
‘b’
|
|
2.
|
‘c’
|
XXY
|
Overall masculinedevelopment.
|
‘d’
|
|
3.
|
Turner’s
|
45 with XO
|
‘e’-
(i)
(ii)
|
‘f’
|
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