**Understanding Dominance in Genetics: A Quiz****Question:**Complete dominance and incomplete dominance differ because the heterozygote has a unique ___.**Options:**- Norm of reaction (selected)- Phenotype- Ploidy- Genotype**Explanation:**In the context of genetics, complete dominance occurs when the phenotype of the heterozygote is the same as the phenotype of the dominant homozygote. In contrast, incomplete dominance happens when the heterozygote has a phenotype that is distinct and often intermediate between those of the two homozygotes.### Correct Answer:**Phenotype****Discussion:**The correct answer to the question is "phenotype." In cases of incomplete dominance, the heterozygote exhibits a unique phenotype that is different from both the homozygous dominant and homozygous recessive phenotypes. This differs from complete dominance, where the heterozygote's phenotype is indistinguishable from the dominant homozygote. ### Further Reading:To explore more about genetic dominance and how different types of dominance affect phenotypes, check out our detailed articles and interactive tutorials on Mendelian genetics and non-Mendelian inheritance patterns.

Alleles of a gene specify the characteristics of a particular organism. The genotype of an organism…

Answered: Complete dominance and incomplete…

Complete dominance and incomplete dominance differ because the heterozygote has a unique _ O norm of reaction phenotype O ploidy genotype

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter4: Pedigree Analysis In Human Genetics

Section: Chapter Questions

Problem 17QP: Analysis of X-Linked Dominant and Recessive Traits A young boy is color-blind. His one brother and...

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Concept explainers

Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.

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Cystic fibrosis is an autosomal disease that mainly affects the white population, and 1 in 20 whites are heterozygotes. Genetic testing can diagnose heterozygotes. Should a genetic screening program for cystic fibrosis be instituted? Should the federal government fund it? Should the program be voluntary or mandatory, and why?
True or false? All traits are inherited in a Mendelian pattern.
Analysis of X-Linked Dominant and Recessive Traits The following is a pedigree for a common genetic trait. Analyze the pedigree to determine whether the trait is inherited as: a. autosomal dominant b. autosomal recessive c. X-linked dominant d. X-linked recessive e. Y-linked
The young woman shown at right has albinismvery pale skin, white hair, and pale blue eyes. This phenotype is due to the absence of melanin, which imparts color to the skin, hair, and eyes. It typically is caused by a recessive allele. In the following situations, what are the probable genotypes of the father, the mother, and their children? a. Both parents have normal phenotypes; some of their children are albino and others are not. b. Both parents and all their children are albino. c. The mother is not albino, the father is albino, and one of their four children is albino.
Figure 12.12 What ratio of offspring would result from a cross between a white-eyed male and a female that is heterozygous for red eye color?
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Use the following information to respond to the three questions posed below: (1) The proband (affected individual who led to the construction of the pedigree) exhibits the trait. (2) Neither her husband nor her only sibling, an older brother, exhibits the trait. (3) The proband has five children by her current husband. The oldest is a boy, followed by a girl, then another boy, and then identical twin girls. Only the second oldest fails to exhibit the trait. (4) Both parents of the proband show the trait. a. Construct a pedigree of the trait in this family. b. Determine how the trait is inherited (go step by step to examine each possible pattern of inheritance). c. Can you deduce the genotype of the probands husband for this trait?
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As it turned out, one of the tallest Potsdam Guards had an unquenchable attraction to short women. During his tenure as guard, he had numerous clandestine affairs. In each case, children resulted. Subsequently, some of the childrenwho had no way of knowing that they were relatedmarried and had children of their own. Assume that two pairs of genes determine height. The genotype of the 7-foot-tall Potsdam Guard was A9A9B9B9, and the genotype of all of his 5-foot clandestine lovers was AABB. An A9 or B9 allele in the offspring each adds 6 inches to the base height of 5 feet conferred by the AABB genotype. a. What were the genotypes and phenotypes of all the F1 children? b. Diagram the cross between the F1 offspring, and give all possible genotypes and phenotypes of the F2 progeny
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