Concept explainers
Introduction :
Human blood group is determined by a gene I. It has three alleles IA and IB and i. I is a dominant gene i is recessive gene. The genotype can be IAIA , IAi, IBIB, IBi, IA IB and ii which determines four types of blood groups A, B, AB and O.
If a person having alleles IA and IB, both genes are express completely resulting into a new
Answer to Problem 7STP
Correct answer :
The correct answer is option (C).
Explanation of Solution
Explanation/justification for the correct answer :
Option (C). If a person having alleles IA and i. This is the heterozygous condition, the blood group will be A. Thus, this is the correct answer.
The explanation for the incorrect answer :
Option (A) IBIB. If a person having allelesIBIB.This is the homozygous condition, the blood group will be B. Thus, this is an incorrect option.
Option (B) ii. If a person having alleles ii. This is the homozygous recessive, the blood group will be O. Thus, this is an incorrect option.
Option (D) IAIB. This is condition in which both alleles are codominant, the blood group will be AB. Thus, this is an incorrect answer.
Chapter 12 Solutions
Biology Illinois Edition (Glencoe Science)
Additional Science Textbook Solutions
Becker's World of the Cell (9th Edition)
Genetic Analysis: An Integrated Approach (3rd Edition)
Human Anatomy & Physiology (11th Edition)
Concepts of Genetics (12th Edition)
Campbell Essential Biology (7th Edition)
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