A woman sustains irreversible damage to her left lung after being injured in a fire. Her identical twin sister, who lives in another state, offers to donate one of her lungs to her injured sibling. Would physicians view this as an organ transplant
surgery with a strong chance of success?
A) Yes; the identical twins would have highly similar self-proteins, and this would likely minimize rejection by cytotoxic T cells.
B) Yes; the identical twins would have highly different self-proteins, and this would likely minimize rejection by B cells.
C) No; the identical twins would have highly similar self-proteins, and this would likely minimize rejection by cytotoxic T cells.
Answer: A
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a. xylem sap forced out of the margins of leaves b. xylem sap harvested by honeybees c. phloem sap harvested as syrup
d. xylem sap separated from syrup e. phloem sap leaving the anus of an aphid
Nitrogen is generally available to plants in only two forms: ammonium and ________
Fill in the blank(s) with correct word
The 5S rRNA and tRNA genes have internal promoters, located downstream of the transcription start site, called ________
Fill in the blank(s) with correct word
Two hormones produced by the cells of the duodenum wall
What will be an ideal response?