A cross is made between a female calico cat and a male cat having the gene for black fur on his X chromosome. What fraction of the offspring would one expect to be calico?
What will be an ideal response?
1/4
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T cell-target cell interactions induce specialized Tc cells to produce ________ that kill virus-infected target cells
A) perforins B) granulozymes C) leukocidins D) pyogens
Which reaction is most likely to have more products than reactants when the reaction reaches
equilibrium?
a. ?G = ?25 kcal/mol b. ?G = ?50 kcal/mol c. ?G = ?75 kcal/mol d. ?G = ?100 kcal/mol e. They will all have the same ratio of products to reactants regardless of the ?G value.
Genetic information carried by a(n) _____________________ directs the synthesis of a(n) _____________________
chain during translation. Fill in the blank(s) with the appropriate word(s).
Which portion of the photosynthetic apparatus absorbs light?
A. both photosystem I and NADP reductase B. both photosystem I and photosystem II C. NADP reductase D. photosystem II E. photosystem I