Regarding alpha feto-protein true statement .
Ans. is a i.e. Major source in fetal life is yolk sac As discussed earlier : "AFP is synthesized early in gestation by the fetal yolk sac and later by the fetal GlTand liver." No where it is given that major source is yolk sac so this statement (option "a") is paially correct. AFP levies are not increased in wilms tumour (i.e. option "b- is incorrect). Maximum level of AFP in : Fetal serum is at - 13 weeks Amniotic fluid is at 13 weeks. - Maternal serum is at 28-32 weeks. So, option 'c' is incorrect. Half life of AFP is 3.5 days (Internet) so, option 'd' is wrong. Amongst all the options given - Option 'a is the best bet.
Major source in fetal life is yolk sac
Commonly incrased in wilms tumour
Maximum level at 20th week
Half life 5-7 days