Evaluate the following claim and answer the question based on your understanding of biological concepts we’ve covered so far. Your genes determine the perfect diet, so calorie intake and habits don’t matter. What is the best response?

Scenario D: Cell division and gene regulationA lab studied a protein (Regulator R) involved in cell division. They compared normal skin cells to melanoma cells. Then they reduced Regulator R in melanoma cells and measured division after 24 hours. Data: Normal: R 1.0; dividing 12% Melanoma: R 3.5; dividing 40% Melanoma + R reduced: R 1.2; dividing 18%D6. Best validity check to include in the write-up:

Evaluate the following claim and answer the question based on your understanding of biological concepts we’ve covered so far. This tea flushes toxins. Which response is most scientifically grounded?

Scenario D: Cell division and gene regulationA lab studied a protein (Regulator R) involved in cell division. They compared normal skin cells to melanoma cells. Then they reduced Regulator R in melanoma cells and measured division after 24 hours. Data: Normal: R 1.0; dividing 12% Melanoma: R 3.5; dividing 40% Melanoma + R reduced: R 1.2; dividing 18%D2. The comparison between normal and melanoma cells shows primarily:

C15 (Cells and energy)Someone says: ‘Oxygen is only important for breathing, not for cells.’ Which correction is best?

Scenario E: Carrier screening and test interpretationA PCR-based screening test has sensitivity 98% and specificity 99%. In this region, 4% of people are carriers. Assume 1,000 people are tested. Expected outcomes: True carriers: 40 -> true positives 39; false negatives 1 True non-carriers: 960 -> true negatives 950; false positives 10E2. Why is that chance not the same as specificity (99%)?

Scenario E: Carrier screening and test interpretationA PCR-based screening test has sensitivity 98% and specificity 99%. In this region, 4% of people are carriers. Assume 1,000 people are tested. Expected outcomes: True carriers: 40 -> true positives 39; false negatives 1 True non-carriers: 960 -> true negatives 950; false positives 10E9. Select all that apply. Factors that influence confidence in a positive result:

Evaluate the following claim and answer the question based on your understanding of biological concepts we’ve covered so far. A vaccine didn’t work because illness still happened afterward. What is the best scientific response?

Evaluate the following claim and answer the question based on your understanding of biological concepts we’ve covered so far. Which choices reflect strong everyday scientific literacy? Select all that apply. 

11. Cellular respiration (in humans) uses oxygen mainly to: