Terminology & Concept Recap
Über den Vortrag
Der Vortrag „Terminology & Concept Recap“ von Georgina Cornwall, PhD ist Bestandteil des Kurses „Laboratory medicine 1 (AMDCM Year 2 Semester 2)“.
Quiz zum Vortrag
What is a locus in genetics?
- A fixed position on a chromosome where a gene is located.
- A group of alleles of different genes on a single chromosome.
- The observable properties of an organism.
- The total genetic constitution of an individual.
- The corresponding alleles on two chromosomes.
What is a haplotype?
- A group of genes within an organism inherited from one parent.
- The location of a gene on a chromosome.
- The observable properties of an organism.
- The total genetic constitution of an individual.
- One of two or more versions of a known mutation.
What is a phenotype?
- The observable properties of an organism.
- An individual with two different mutant alleles.
- The location of a gene on a chromosome.
- The total genetic constitution of an individual.
- One of two or more versions of a known mutation.
What is a genotype?
- The total genetic constitution of an individual.
- The observable properties of an organism.
- An individual with two different mutant alleles instead of one wild-type and one mutant allele.
- A group of alleles of different genes on a single chromosome.
- The location of a gene on a chromosome.
What is a compound heterozygote?
- The presence of two different mutant alleles at a particular gene locus.
- The location of a gene on a chromosome.
- One of two or more versions of a known mutation.
- A group of alleles of different genes on a single chromosome.
- The total genetic constitution of an individual.
What is pleiotropy?
- A single gene mutation that affects multiple traits.
- The proportion of individuals that express the phenotype of a particular genotype.
- The degree to which a particular genotype affects the phenotype.
- Multiple gene mutations with a single effect.
- The proportion of individuals with a heterozygous genotype.
Which of the following best describes penetrance?
- The proportion of individuals that express the phenotype of a particular genotype.
- A single gene mutation with multiple effects.
- The degree to which a particular genotype affects the phenotype.
- Multiple gene mutations with a single effect.
- The proportion of individuals with a heterozygous genotype.
What is expressivity?
- The degree to which a particular genotype affects the phenotype.
- The proportion of individuals with heterozygous genotype.
- A single gene mutation with multiple effects.
- Multiple gene mutations with a single effect.
- The proportion of individuals that express the phenotype of a particular genotype.
Which of the following statements best exemplifies variable penetrance?
- 80% of individuals with a mutation in the BRCA1 gene develop breast cancer.
- 100% of individuals with the BRCA1 gene develop breast cancer.
- BRCA1 can lead to breast cancer, ovarian cancer, or both.
- No individual with a mutation in the BRCA1 gene would develop breast cancer.
- Mutation in the BRCA1 gene only leads to breast cancer.
Which of the following statements best exemplifies variable expressivity?
- Twin sisters with the same BRCA1 gene mutation may develop different cancers.
- Mutation in the BRCA1 gene only leads to breast cancer.
- 80% of individuals with a mutation in the BRCA1 gene develop breast cancer.
- All patients with BRCA1 will develop ovarian cancer.
- No individual with a mutation in the BRCA1 gene would develop breast cancer
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Dozent des Vortrages Terminology & Concept Recap
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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