Concept explainers
a.
To determine: The chances of the child to have blood group A when his mother is type A and father is type AB.
Introduction: The human blood group system is an example of codominance where the alleles for the two antigens A and B are equally dominant. This means that when the two antigens A and B are present the blood group is AB while in the absence of both the antigens the blood group is O.
b.
To determine: The chances of the child to have blood group AB when his mother is type A and father is type AB.
Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. This means that when the two antigens A and B are present the blood group is AB while in the absence of both the antigens the blood group is O.
c.
To determine: The chances of the child to have blood group O when his mother is type A and father is type AB
Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. This means that when the two antigens A and B are present the blood group is AB while in the absence of both the antigens the blood group is O.
d.
To determine: The chances of the child to have blood group B when his mother is type A and father is type AB.
Introduction: The human blood group is an example of codominance where the alleles for the two antigens A and B are equally dominant. This means that when the two antigens A and B are present the blood group is AB while in the absence of both the antigens the blood group is O.
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Human Heredity: Principles and Issues (MindTap Course List)
- show a cross between a woman with blood type o and a man who is heterozygous blood type b. Using mendels rules. What is the percent chance that the child has blood type o?arrow_forwardA) Determine the type of inheritance shown on this pedigree. Explain your answer. B) Based on your answer to A, what are the possible genotypes for the following individuals: I-1 II-4 III-9arrow_forwardMendel used the terms blank to describe a factor controlling a trait that always shows up in offspringarrow_forward
- According to Mendel, if an individual is heterozygous for a gene, thephenotype will correspond to that ofa. the recessive trait alone.b. the dominant trait alone.c. a blend of the dominant and recessive traits.d. a wild-type traitarrow_forwardState Mendels law of independent assortment.arrow_forwardwhen else do we see a non-Mendelian pattern of inheritance? a)When genes are located on different chromosomes b)When genes are located far away on the same chromosome c)When genes are located close together on the same chromosomearrow_forward
- In Mendel’s law, pairs of characters separate during gamete formation is called? A. Incomplete dominant B. Law of segregation C, Law of independent assortment D. Law of dihybridarrow_forwardDetermine the way through which Mendel knows that each of his pea plants carried two alleles encoding a characteristic.arrow_forwardVariations on a Theme by Mendel A characteristic of snapdragons amenable to genetic analysis is flower color. Imagine that a true-breeding red- flowered variety is crossed to a pure line having white flowers. The progeny are exclusively pink-flowered. Diagram this cross, including genotypes for all P1 and F1 phenotypes. What is the mode of inheritance? Let F = red and f = white.arrow_forward
- Mendel grew pea plants to show that a single gene determines flower color. Plants with one or more dominant alleles (A_) produce purple flowers, and plants with two recessive alleles (aa) produce white flowers. In this example, flower color is the ____________________. gene locus exon trait dominant phenotypearrow_forwardPart B. Write the genotype for each individual person using H and h to represent the alleles. Remember to use a H? if you cannot determine what the genotype is for person with the dominant trait.arrow_forwardWhat is Polygenic Inheritance? A) When one gene has many effects B) The additive effect of 2 or more genes C) The genes that cause skin colorarrow_forward
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