Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Linkage groups (1) have genes, which were linked together in a single chromosomes (2) show independent assortment (3) do not show independent assortment (4) in prokaryotes are more than oneA) 1, 2 and 3 are correct.
B) 1 and 2 are correct.
C) 2 and 4 are correct.
D) 1 and 3 are correct.
Correct Answer: D
Solution :
All the linked genes of a chromosome form a linkage group. Because, all the genes of a chromosome have their identical genes on the homologous chromosome, therefore, linkage groups of a homologous pair of chromosome are considered as one. The number of linkage group of a species corresponds with haploid chromosome number of that species. Linkage groups are more than one in prokaryotes.
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