what's the function of BSA and goat serum?

kathy kathy at qingdaonews.com
Thu Nov 16 11:23:10 EST 2000

I have some questions on  Zbook>chapter 8>staining wholemount 
embryos with PAP> step7-- goat serum is used to block no-
specific binding sites, then what is the function of BSA? and can I 
use skim powder in stead of goat serum? what is the function of 
DMSO? step0-- should chorions and yolks be removed firstly?

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