DNA Future Knowledge

If someone could test your DNA and tell you what diseases you would likely suffer from in 25 years, would you want to know the results? Compose supporting or refuting your personal decision to know the results of your own gene test. Use examples, including the specific disease you would be tested for, the actual likelihood of contracting the disease if you have a positive test, how this knowledge could help you avoid dying from the disease, and how you think having this knowledge would affect you and your family.

Aspen Trees

Stands of aspen trees often are a series of genetically identical individuals, with each succeeding tree growing from the severed shoot of another tree. Using what you've learned of genetics would you expect one aspen tree in a stand to differ greatly from another in its phenotype? Would you expect each to look exactly like the next in terms of phenotype? Evaluate.

Questions involving genes

1. Alternate forms of a gene that govern the expression of the same trait and that occur at the same positions on homologous chromosomes are called: a. Chromatids. b. mRNA. c. Gametes. d. Alleles. e. Autosomes. 2. In Mendel's garden peas, the yellow color is dominant to the green. Additionally, smooth seeds are dominant to wrinkled seeds. In a dihybrid cross, a plant has a P generation consisting of smooth yellow and wrinkled green. The F1 generation consists of 100% smooth yellow. These plants are now self-fertilized and the F2 generation would show a phenotype ratio of: a. 9:3:3:1 b. 3:1:1:3 c. 2:1:1:0 d. 2:1:1:2 3. For cod... click for more

Is there any level of testing that should be required by society as a means of reducing health care costs or reducing transmission of genetic diseases across generations

Once we improve our ability to screen the human genome for disease susceptibility, is there any level of testing that should be required by society as a means of reducing health care costs or reducing transmission of genetic diseases across generations?

Genetics/Biology Multiple Choice

Question 1 According to Chargaff's rule, which of the following base-pairings is correct? a. Adenine—guanine. b. Guanine – uracil. c. Thymine – cytosine. d. Adenine –thymine. Question 2 How do mutations affect an organism? a. They may cause the development of a disease-causing allele. b. They may cause the development of a more beneficial allele. c. They, in some cases, may have no noticeable affect. d. They do everything listed above. Question 3 Genes provide the information needed to produce _____ in the cell. a. Ribosomes. b. Enzymes. c. Lipids. d. Glucose. Question 4 Which ... click for more