Mature red blood cells do not have a well-defined nucleus or other membrane-bound organelles. What is the advantage of this characteristic?
What will be an ideal response?
By extruding its nucleus and most organelles, a red blood cell leaves more space for hemoglobin, the protein that transports oxygen.
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The individual who first proposed the existence of transposable elements was ____
A. Sturtevant B. Morgan C. McClintock D. Franklin E. Watson
The release of calcium ions into the egg cytoplasm during fertilization causes all of the following
actions except:a. an increase in aerobic respiration. b. onset of the cortical reaction. c. inhibition of acrosomal enzymes. d. activation of protein synthesis. e. onset of a slow block to polyspermy.
A ________________ is a protective protein coat that surrounds the nucleic acid of the virus.
A. Capsid B. DNA C. Pathogen D. Epidemic
Due to the diversity of retroviruses, they can be placed into more than one Baltimore system group.
Answer the following statement true (T) or false (F)