Which of the following is true regarding chronic
bronchitis?
a. It is a leading cause of lung cancer.
b. The lungs become elastic.
c. It can lead to emphysema.
d. The alveoli shrink.
e. All of these are true.
Answer: c
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A cell placed in a(n) ____________________ solution will swell. Fill in the blank(s) with the appropriate word(s)
A novel protist was discovered on a rock sample in a hot spring. Your task is to determine the lengths of DNA associated with its nucleosomes so that a colleague can then determine the nature of the proteins that comprise the nucleosome
How would you go about determining the lengths of these DNA fragments? What will be an ideal response?
Protein carrier-mediated transport of molecules display ________.
specificity competition saturation All of the choices are correct.
Congenital deafness in humans is due to the
homozygous condition of either of the recessive genes d or e, or both of these genes. Both dominant D and E are necessary for normal hearing. Gene D/d affects the middle ear, while gene E/e affects the inner ear. It does not matter how good the normal inner ear (as indicated by E__) is; if there is something wrong in the middle ear, the individual is unable to hear. The same applies for the other gene. Give the phenotypic results of the following crosses: (a) Dd EE x Dd EE (b) Dd Ee x Dd Ee (c) dd EE x DD ee (d) Dd EE x Dd ee (e) Dd EE x DD Ee What will be an ideal response?