The genotypes of a husband and wife are IAIBand IAi. Among the blood t...
A cross between two individuals, one with AB blood group and other with A blood group will produce four genotypes and three phenotypes.
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The genotypes of a husband and wife are IAIBand IAi. Among the blood t...
The genotypes of a husband and wife are IAIBand IAi. Among the blood t...
Possible Genotypes and Phenotypes of Children from Given Parents
Genotypes and phenotypes are two essential terms used to describe the characteristics of an organism. In genetics, genotypes refer to the genetic makeup of an individual, while phenotypes are the observable physical or biochemical traits expressed by an organism. In this question, we are given the genotypes of a husband and wife, IAIBand IAi, and we have to determine the possible genotypes and phenotypes of their children.
Possible Genotypes of Children
The genotypes of the children can be determined by using the principles of Mendelian genetics. According to the laws of inheritance, each parent contributes one allele to their offspring. Therefore, the possible genotypes of the children can be determined by combining the alleles from both parents. The following are the possible genotypes of their children:
- IAIA: 25% chance
- IAIB: 50% chance
- IAi: 25% chance
Therefore, there are four possible genotypes of the children: IAIA, IAIB, IAi, and IBi.
Possible Phenotypes of Children
Phenotypes are the physical expressions of the genetic makeup of an organism. In the case of blood types, the phenotype is determined by the presence or absence of specific antigens on the surface of red blood cells. The following are the possible phenotypes of the children:
- Type A: 50% chance (IAIA and IAi)
- Type AB: 25% chance (IAIB)
- Type B: 25% chance (IBi)
Therefore, there are three possible phenotypes of the children: Type A, Type AB, and Type B.
Answer: The correct answer is (b) 4 Genotypes; 3 Phenotypes.
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