Sex-influenced traits are expressed ____
a. aftafter the formation of a Barr body
b. more in males than in females
c. as a result of hormone differences between males and females
d. only in males
e. only in females
c
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Tacrolimus (FK-506) is a drug that inhibits an enzyme called calcineurin. Calcineurin is a protein phosphatase. This is an enzyme that dephosphorylates (removes phosphate groups) from proteins. When added to cells, tacrolimus can inhibit the dephosphorylation of a protein called NFAT, but it cannot prevent the dephosphorylation of a protein called CDK1 . What is the most likely explanation for
this finding? A. Calcineurin requires an additional cofactor to dephosphorylate NFAT B. NFAT is a substrate of calcineurin, but CDK1 is not C. Tacrolimus is a competitive inhibitor of calcineurin for NFAT and CDK11 D. Tacrolimus changes the optimum pH for calcineurin
Translation occurs in the ________ of bacteria and in the ________ of eukaryotic cells.
A. nucleus; cytoplasm B. nucleus; nucleus C. cytosol; endoplasmic reticulum D. cytoplasm; cytosol E. cytoplasm; nucleus
T or F: A fatigue fracture is also known as a traumatic fracture
What will be an ideal response?
All mutations are not beneficial to the cell.
Answer the following statement true (T) or false (F)