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Question

A linkage group is defined as
  1. All the linked genes of a chromosomal pair
  2. Different groups of genes present on different chromosomes
  3. All the genes located on the same chromosome
  4. None of the above

A
All the linked genes of a chromosomal pair
B
All the genes located on the same chromosome
C
Different groups of genes present on different chromosomes
D
None of the above
Solution
Verified by Toppr

Linkage group, in genetics, all of the genes on a single chromosome. They are inherited as a group; that is, during cell division they act and move as a unit rather than independently.
So, the correct answer is 'All the linked genes of a chromosomal pair'.

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Similar Questions
Q1
Maize has ten pairs of chromosomes. How many linkage groups will be present, if all the genes are mapped?
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Q2
Assertion: Number of chromosomes in one genome is equal to number of linkage groups.

Reason: Linkage groups give important information about the location of genes in the chromosomes.
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Q3
T.H. Morgan discovered that all the genes in Drosophila are linked to four pairs of linkage groups which correspond to 4 pairs of chromosomes. Sometimes, the linkage of some genes, present at some specific distance, is broken and they show independent assortment. The most plausible reason for break in the concept of linkage would be
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Q4
The size of the linkage group depends on the size of the chromosome. If the chromosome is long enough, and the genes are located sufficiently far apart on the chromosomes, events in which of the following stages of cell division might cause the genes to be inherited independently of each other?
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Q5
Find the correct combination. Linkage groups.
1. Have genes which are linked in single chromosomes
2. Show independent assortment
3. Do not show independent assortment
4. In prokaryotes more than one.
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