Multiple Alleles and Incomplete Dominance – Beyond Gregor Mendel
Über den Vortrag
Der Vortrag „Multiple Alleles and Incomplete Dominance – Beyond Gregor Mendel“ von Georgina Cornwall, PhD ist Bestandteil des Kurses „Understanding Genetics“.
Quiz zum Vortrag
Which of the following is NOT true about blood typing in humans?
- Blood type is influenced by environmental factors; thus, an individual can exhibit multiple blood groups during their lifetime.
- Three alleles IA, IB, and I control the blood types in humans.
- Both IA and IB alleles are dominant over the I allele.
- Alleles IA and IB exhibit codominance when each allele is inherited by an individual.
- Type A and type B blood groups will have "A" and "B" antigens on the cell membrane of RBCs, respectively.
Which of the following statements are TRUE of the Principle of Incomplete Dominance? Select all that apply.
- Heterozygotes express both alleles.
- The phenotype of heterozygotes will be intermediate to those of their homozygotic parents.
- The phenotype of heterozygotic individuals will resemble their recessive parent.
- The phenotype of heterozygotic individuals will resemble their dominant parent.
- The male parent has a greater influence on the progeny than the female parent.
A pink snapdragon displays incomplete dominance when a red and white snapdragon cross. What is the phenotypic ratio of progeny when the pink snapdragon self-pollinates?
- 1 Red : 2 Pink : 1 White
- 2 Red : 1 Pink : 1 White
- 1 Red : 1 Pink : 2 White
- 3 Red : 1 White
- 3 Pink : 1 White
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Dozent des Vortrages Multiple Alleles and Incomplete Dominance – Beyond Gregor Mendel
Georgina Cornwall, PhD
Dr. Georgina Cornwall is a Biology Instructor and currently works as an Instructional Designer in the private sector, developing interactive online training materials.
She obtained her PhD in Environmental, Population, and Organismic Biology at the University of Colorado, USA, in 2000, and has since taught a broad array of biology courses at various US universities.
She is an active promoter of hybrid/online teaching formats and interactive courses, and has received several awards for her engaging and innovative course design; e.g., she was named Adjunct Faculty of the Year at Colorado Mountain College in Aspen twice.
Within Lecturio, Dr. Cornwall teaches courses on Biology & Genetics.
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