Which of the following is true for person having blood group 'B' ?

Write the possible genotypes for a person having B-blood group.

Which of the statements given below are correct? 1. A person having blood group 'A' can donate blood to persons having blood group 'A' and blood group AB'. 2. A person having blood group 'AB' can donate blood to persons having blood groups 'A', 'B', 'AB' or 'O'. 3. A person with blood group 'O' can donate blood to persons having any blood group. 4. A person with blood group 'O' can receive blood from the person of any of the blood groups. Select the correct answer using the code given below:

Type A blood should not be injected to a person having B-blood group. Why ?

Choose the correct alternative among the following : The persons of O-blood group are 40 % . The classification of persons based on blood groups is to be shown by a pie diagram .what should be the measures of angle for the persons of O -blood group ?

With respect to blood groups, the person having _______blood group is definitely heterozygous.