I recently read a comparison between behaviour of chromosomes and genes - which had two statements understated -
Independent pairs segregate independently of each other
One pair segregates independently of another pair
I further found that the first one indicates segregation pattern of gene and the second accounts for chromosome.
But that bothers me, I am unable to compare chromosome and gene on this basis. I feel the two statements really confusing and it appears to me that both the statements apply both to chromosomes and genes.
Though, law of segregation for genes includes one pair of genes that segregate independently of each other but independent pairs too segregate independently of other pairs. As genes are present on chromosomes, what then defines their segregation differently.
Also, what does segregation of chromosomes imply? Does it include separation of sister chromatids in anaphase of meiosis as well as mitosis or separation of bivalents also during meiosis?
Is the question biased on independent assortment more than segregation pattern, please do correct me.
Those doubts appear absurd to me, but I hope that someone would help me, please.