Why is smoking cigarettes so dangerous to human health?
What will be an ideal response?
Cigarette smoke, which is inhaled deeply into the lungs, contains numerous carcinogens. Lung tissue is very delicate by design so gases can readily exchange across it. Carcinogens from cigarette smoke can readily cause mutations in the DNA of this delicate lung tissue. Smoking also leads to emphysema and heart disease.
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Excess glucose is converted into glycogen in
a. the pancreas. b. the liver. c. the thymus. d. the thyroid. e. the adrenal cortex
Which is not a type of granulocyte?
What will be an ideal response?
The target cell concept is illustrated in the picture. Label the cells as either target cells or non-target cells by identifying A and B as such. Explain your answer.
What will be an ideal response?
A mutation has occurred in the sequence in the promoter region of a bacterial gene, such that the sequence TTGACA has been lost. What process will be most directly affected by this mutation?
A. splicing B. translation initiation C. transcription initiation D. RNA polymerase II binding