Several human disorders are caused by DNA repair pathway deficiencies. Choose one and describe: (1) what the deficiency is and (2) how the defect affects people with the disease
What will be an ideal response?
Answer: There are many correct answers, so the instructor will judge by individual merit. However, diseases include xeroderma pigmentosum, Cockayne syndrome, skin cancers such as malignant melanoma, and some colon cancers such as hereditary nonpolyposis colon cancer.
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In the life cycle of a fungus, the binucleate mycelium becomes
a. compatible hyphae. b. a fruiting body. c. a new mycelium. d. many spores
Where in cells are proteins manufactured?
a. Golgi bodies b. vesicles c. rough endoplasmic reticula d. lysosomes e. smooth endoplasmic reticula
When the size of a population greatly exceeds K, it would be expected the population will:a
rapidly increase. b. slowly increase. c. slowly decrease. d. rapidly decrease. e. stabilize.
What event that occurred around 10,000 years ago led to genetic changes in wheat?
A) domestication of the wheat plant B) domestication of livestock C) invention of genetic engineering D) mass extinction of herbivores