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:
Variations appear during meiosis due to : (1) independent assortment (2) crossing over (3) linkage (4) glycolysisA) 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: B
Solution :
Variations are differences found in morphological, physiological, cylological and behaviouristic traits of individuals belonging to same species, race and family. They appear in offspring or siblings due to: Reshuffling of genes/chromosomes by chance separation of chromosomes Crossing and independent assortment. Chance combination of chromosomes during meiosis and femlization. Mutations Effect of environment
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