What’s the difference between atoms that make up elements?
Ans: The number of protons
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A scientist identifies a cell line derived from muscle with reduced expression of several muscle-specific proteins including ?-actin and myosin
Further investigation shows that while mRNA specific to these proteins is transcribed and polyadenylated at normal rates, the half-life of the mRNAs is significantly lower. What would be a likely explanation? A. There is a mutation in RNA polymerase II. B. There is an increase in RNA-editing terminal uridylyltransferase (TUTase) activity. C. There is amutation in poly(A) binding protein (PABP). D. There is amutation in polyadenylate polymerase (PAP). E.There is an increase in number of processing bodies.
An agar block filled with auxin is placed on top of a shoot that has had the shoot tip removed. The agar
block is placed so that it covers only one side of the top of the shoot. Which of the following should occur?
a. The shoot will stop growing. b. The shoot will grow faster on the side away from the agar block. c. The shoot will grow straight up. d. The shoot will grow faster on the side with the agar block. e. The shoot will grow faster on both the side away from the agar block and on the side with agar block.
Four of the five answers listed below are produced by the same lobe of the pituitary. Select the
exception. a. antidiuretic hormone b. prolactin c. corticotropin d. somatotropin e. luteinizing hormone
The structure that increases the surface area of the small intestine are the villi and the _______
Fill in the blank(s) with the appropriate word(s).