What is correct for blood grops O?

What is correct for blood groups O?

What is correct for blood group O ?

What is correct regarding blood pressure?

What is correct for a person with blood group 'O' ?

A couple has two daughters. The blood group of the husband and wife is 'o'. What is the possible blood groups the children should have

A couple have two daughters. The blood group of husband and wife is 'O' What is the possible blood groups of the children should have?

What will be the blood groups of following genotypes? I^O I^O