ETHC 210 Quiz Inheritance
ETHC 210 Quiz Inheritance and Human Health
Covers the Learn material from Module 3: Week 3.
- A dominant allele masks the expression of a recessive allele.
- In complete dominance;
- A parent who carries a disease gene always shows symptoms of the disease.
- Abraham Lincoln was thought to have Marfan syndrome, which of the following are true about this condition
- Because Huntington’s disease is so deadly most people alive who have it are children.
- A phenotype is the trait that you see or can observe.
- Which of the following is true about Huntington’s disease.
- Every phenotype, the trait that you observe, is caused by the combination of two alleles or the genotype, so for example, brown eye color is a phenotype which can be produced by a dominant allele (B) such that the genotype for brown eye color could be Bb or BB.
- Mendel discovered that genes come in two pieces called;
- The ABO blood group alleles found in the human population are an example of;
- Using and understanding pedigrees are important today because they help families identify the risk of transmitting an inherited disease
- Mitochondrial genes are primarily transferred from fathers to their children.
- Achondroplastic dwarfism is considered a lethal genetic syndrome because;
- Genetic disease based on altered genes is caused by either “loss of function” or “gain of function” which causes the disease and its symptoms. Cystic Fibrosis involves a defective anion channel. This would be classified as:
- Since osteogenesis imperfecta can be the result of single gene defects in a number of different genes (genetic heterogeneity) parents who carry the defect in different genes from their partner can produce a child with this syndrome.
- According to widely accepted modern evolutionary ideas mitochondria originated in cells according to;
- A Punnet square follows transmission of alleles and is based on probability.
- The “A” and “B” alleles in the ABO blood group are recessive to blood type “O.”
- The Mitochondrial Eve theory is a theory about:
- Amyloid plaques are the suspected cause of Alzheimer disease.
- What percent of cases of Alzheimer disease are familial (inherited)?
- The bodies of the Royal Romanovs, the ruling family of Russia in the early 1900s were exhumed in the 1990s and their DNA was sequenced. Geneticists found a variation in the mitochondrial DNA sequence among the royal family members. The variation was explained by the phenomena of:
- The OCA2 gene confers eye color such that the recessive condition (two recessive alleles) results in:
- A single gene OCA2 on chromosome 15 confers eye color by controlling melanin synthesis. But also a second gene can influence the expression of OCA2.
- Austrian monk Gregor Mendel primarily worked with what kind of organisms to do his genetic work?