You are a doctor examining a patient's blood test results. The patient's T cell count is low, and T cells that are present are not well developed. You examine scans of the patient's thymus. It is underdeveloped, which means the T cells in the blood ______
(Select all correct answer options.)
A. will be present in lower numbers because
the thymus is where T cells are formed.
B. will be present in lower numbers because
the thymus is where T cells mature.
C. will have not undergone selection against
self-recognition, and the patient will be more
susceptible to autoimmune diseases.
B,C
You might also like to view...
Immediately after a meal, the concentration of
glucose in the blood tends to increase due specifically to what digestive system task? a. mechanical processing b. secretion c. digestion d. absorption e. elimination
Which gene-altering event is most likely to create a new gene encoding a functional protein?
a. gene duplication followed by small mutations b. gene duplication followed by large mutations c. exon shuffling d. transposition of DNA sequences e. inversion of DNA sequences
While a eukaryotic pre-mRNA is still being synthesized it is modified on its 5' end when
a. exon shuffling mixes mRNA pieces. b. enzymes recognize a polyadenylation signal in the trailing RNA sequence. c. the RNA introns are cut out by the spliceosome. d. an enzyme adds a guanine-containing cap. e. the RNA exons are spliced together.
Which graph shows that species diversity is
much less at the equator than at 60 degrees north latitude? a. A b. B c. both d. neither e. not enough data is provided to answer the question