Which is an example of a structural homology?
A. The same group of embryonic cells forms the adult jaw of a perch and of a dog.
B. All vertebrate embryos form a post-anal tail.
C. All organisms share a common genetic code.
D. Vertebrate forelimbs have the same number and arrangement of bones.
Ans: D. Vertebrate forelimbs have the same number and arrangement of bones.
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Which of the following are soluble mediators and activators for T lymphocytes and B cells?
A) IL-2 B) IL-4 C) IL-5 D) IL-2, IL-4, and IL-5
The person in the above figure is afflicted with
which of the following hormonal disorders? a. acromegaly b. dwarfism c. low levels of rhGH d. parathyroid radiation poisoning e. none of these
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What will be an ideal response?