Question

Which statements are not true about the grafts?
A. Isografts are grafts in which the donor and recipient is the same individual. 
B. Autografts are grafts between the donor and recipient of the same genotype. 
C. Allografts are those in which the donor is of the same species but of a different genotype 
D. Xenografts are those in which the donor is of a different species from that of the recipient. 
Choose the correct answer from the options given below

• A. A, B and D only
• B. A and B
• C. B and C
• D. C and D

Answer 1

The Correct Option is B

To determine which statements about grafts are not true, let's examine each statement:

1. Isografts
   Statement A claims that isografts are grafts where the donor and recipient are the same individual. This statement is incorrect. Isografts are actually grafts between two genetically identical individuals, such as identical twins. The correct term for grafts involving the same individual is autografts.
2. Autografts
   Statement B states that autografts are grafts between a donor and a recipient of the same genotype. This is incorrect. Autografts are grafts transplanted from one site to another on the same individual, not between individuals of the same genotype.
3. Allografts
   Statement C describes allografts as grafts where the donor is of the same species but of a different genotype. This is correct. Allografts involve transplants between genetically different individuals of the same species.
4. Xenografts
   Statement D explains that xenografts are grafts where the donor is of a different species from the recipient. This is correct. Xenografts involve transplants between individuals of different species.

Based on these explanations, the statements that are not true are A and B. Thus, the correct answer is:

A and B