Which molecules are involved in the anchoring of cells to an extracellular matrix?
a. Interleukins
b. angiostatin
c. cyclins
d. integrins
Answer: d. integrins
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In Thomas Hunt Morgan's experiments, males had white eyes but females did not. What cross could you perform with his flies to obtain white-eyed females?
A. cross the F1 offspring to each other. B. cross an F1 female to a white-eyed male. C. cross an F2 female with an F1 male. D. cross an F2 female with a white-eyed male. E. crossing either the F1 or F2 females with a white-eyed male will produce some white-eyed females.
Why is the production of transgenic plants somewhat easier than the production of transgenic animals?
A. Plant cells are pluripotent. B. Plant cells are more stable than animal cells. C. Plant cells are totipotent. D. Plant cells are more highly evolved. E. Plant cells readily take up vectors, whereas animal cells do not.
T-independent antigens
A. include polysaccharides. B. require the involvement of T cells. C. interact with MHCI molecules. D. are usually proteins. E. include polysaccharides AND are usually proteins.
A newly hatched duck adopts the first large, moving object it sees as its mother. This is an example of ________
Fill in the blank(s) with correct word