Yes most f the time but about 98% of the time that is not true
The mouth, stomach, small intestine, and large intestine. Containing hydrochloric acid and digestive enzymes.
B
Explanation
Sodium Fluoride
Yes, that's a true statement.
Answer:
given, mother and father are heterozygotes.
let, father has B blood group and mother has A blood group.
then their heterozygous genotypes are --
father = iB, iO and mother = iA, iO
punnett square will be,
iB iO
iA iA iB iA iO
iO iB iO iO iO
the genotypes of their progeny will be, iAiB , iAiO ,iBiO and iOiO
and phenotypes will be 3 are heterozygous and 1 is homozygous.