I need some help

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

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I need some help

Post by wtwt5237 » Sun Jul 15, 2007 9:48 am

Could anyone here give me some simple examples of imprinting and mosaicism? I have difficulty in understanding their definitions and failed to find some simple examples I can understand.
Thank you

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Post by mith » Sun Jul 15, 2007 3:39 pm

imprinting-duck follows the first thing it sees.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;

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Post by siroma » Sun Jul 15, 2007 10:56 pm

One example of mosaics is human females.
Randomly, one of two X/X chromosomes is deactivated {for gene balancing (males have only one X chromosome )}. Because one X comes from mother and one from father, they may have different alleles. Thus, a clone of tissue produced from ancestral cell with, say, father's deactivated X chromosome will have different genotype than a clone produced from the ancestral cell with deactivated mother's X chromosome.

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