why are UV rays dangerous to our bodies? What can they do? A. UV rays can mutate the DNA in our skin cells B. UV rays can cause skin cancer C. UV rays can destroy folate D. All of the above
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why are UV rays dangerous to our bodies? What can they do?
| A. |
UV rays can mutate the DNA in our skin cells |
|
| B. |
UV rays can cause skin cancer |
|
| C. |
UV rays can destroy folate |
|
| D. |
All of the above |
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- The single most important risk for skin cancer is a.genetics b.overexposure to UV radiation c.race d.use of farm chemicalsWhich of the following drugs is a clinically-used monoclonal antibody for the treatment of breast cancer? O a. Doxycycline O b. Chloroquine O c. Herceptin O d. ProtiumWhich of the following would not be classified as an initiating carcinogen? a. Water b. Benzopyrene c. Epidermal growth factor d. UV light
- Which of the following tests are used to detect cancer? Select all that apply! a. Stool blood test for colon cancer b. Pap smear for cervical cancer C. COVID-19 PCR test for lung cancer d. Mammogram for breast cancerwhich of the following can be used to stimulate an organism's immune system? A. Restriction Enzymes B. DNA Ligase C. Sticky Ends D. Monoclonal AntibodiesRead the article then answer the following questions. 3. Why is it difficult to create a vaccine for AIDS? a. the virus is too well hidden in the body b. the virus is constantly changing c. vaccines only work on bacterial infections d. not enough research money 4. Years ago, doctors would prescribe antibiotics for many symptoms of a common cold. Today, it is much more difficult to get a prescription. Why has the medical industry changed its procedures? a. too many antibiotics can create resistant bacteria b. pharmaceutical companies objected to the amount of prescriptions c. antibiotics can make people sick d. doctors are against prescribing medicines 5. To see evolution in action, you should look at organisms with: a. short lifespans b. complex body systems c. large populations d. short amount of time between generations
- 1. According to the National Cancer Institute, what forms of non-ionizing radiations has no experimental evidence showing that at normal levels of this radiation are dangerous to humans. a Visible light b. Extremely low frequency c microwave d. infrared 2. Both UVA and UVB light are important for humans in the production of Vitamin D in the skin and gives us tanning effects. Overexposure to UV radiation may cause a. Heart failure c. asthma b. Cancer d. high blood pressure 3. Exposure to normal levels of extremely low frequency (ELF) waves causes a. Brain damage C. severe bums b. Asthma d. no damaging effects 4. Children like fetus is in great danger than adults from the exposure of microwave radiation a. True b. False 5. Which of the following is NOT an example of non-ionizing radiation? A. X-ray c. Ultraviolet B. Microwave d. Visible light 6. About half of the total energy the sun gives off is in the form of what type of non-ionizing radiation? A. Microwaves c. infrared B. Ultraviolet…3 4 Some antibodies can be passed from mother to child during breastfeeding. What is this type of immunity called? A. Artificial passive B. Natural active C. Artificial active D. Natural passive The diagram represents the production of the hormone insulin in laboratory. Human Insulin Production Human pancreas cell Bacterial DNA & Human insulin- producing gene 60 Bacterium DNA Plasmid DNA Introduction of recombinant DNA into a bacterial cell Plasmid DNA cut with restriction enzymes Recombinant DNA A. Directed mutation B. Gene cloning C. Synthetic transplant D. Acquired immunity Recombinant Bacterium OO Fermentation Tank Human insulin Recombinant bacteria multiplying and producing human insulin in fermentation tank Human insulin https://www.eduhk.hk/biotech/eng/classm/explain/health3.jpg Extraction & purificaion of human insulin Source: The production of human insulin by E. coli is an example of the application of which of the following?Overexpression of Mdr1 in cancer cells causes the cells to be a. Apoptotic b. Susceptible to chemotherapy c. Resistant to chemotherapy d. Normal
- Read the article and then answers the following question.3. Why is it difficult to create a vaccine for AIDS? a. the virus is too well hidden in the body b. the virus is constantly changing c. vaccines only work on bacterial infections d. not enough research money 4. Years ago, doctors would prescribe antibiotics for many symptoms of a common cold. Today, it is much more difficult to get a prescription. Why has the medical industry changed its procedures? a. too many antibiotics can create resistant bacteria b. pharmaceutical companies objected to the amount of prescriptions c. antibiotics can make people sick d. doctors are against prescribing medicines 5. To see evolution in action, you should look at organisms with: a. short lifespans b. complex body systems c. large populations d. short amount of time between generationsWhy is UV-C is more likely to harm DNA than UV-A?Which of the following chemicals is released by the body in response to exposure to allergens such as mold, pollen, and food? a. Histamine 1 b. Histamine 2 c. Leukotriene d. Mast cell