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Describe a well-controlled experiment to determine if the rise in internal free calcium observed in the cytoplasm of unfertilized sea urchin eggs in the presence of A23187 is due to in flux of calcium from seawater. Include experimental treatments, controls, and briefly describe experimental methods.
Note: As mentioned in the lab manual, the calcium concentration in seawater is 10mM while the concentration in unfertilized egg cytoplam is greater that 10-6 M. Immediately after fertilization or in unfertilized eggs treated with A23187 the internal calcium concentration increases.
Was the hypothesis supported and What is your conclusion
Though, at the restrictive temperature, the minimum size required to enter mitosis is decreased greatly; as a result, diminutive daughter cells are produced.
What is the genotypic and phenotypic ratio in the offspring produced by the cross AABb x Aabb if A is green colour, a - yellow; B- tall plants. b -short plant? Suppose complete dominance for the trait. Describe results of the cross using branching di..
The measurements to be comparable in both preparations. Illustrate one experiment you could perform to demonstrate such lack of equivalence of the two cells in the zygote. Noticeably state the expected outcome of your experiment in the reply you prov..
The tRNA in the E site will leave and migrate to its aminoacyl-tRNA synthetase d. where the tRNA will be recharged with the correct amino acid.
What makes the principle scientifically useful or a positive thing for science? What makes a principle not methodically useful, or even a negative thing for science.
A rapid beat of heart over 100 beats per minute is known as ______. A beat slower than 60 is called ______. Lack of appropriate blood to the heart is known as ______. Rapid shuddering of the heart muscle is called ______.
Describe the major points of the Sternberg, Spearman, and Gardner models of intelligence. Discuss specific similarities and differences from one model to another. Discuss which model appears to be the most comprehensive model of intellectual function..
What is cloning's MOST IMPORTANT impact on psychology? Cloning could cause mental illness. Cloning has no impact on psychology. Cloning might be used for cures for diseases of the nervous system. Cloning may cross the lines into creating human life.
No structures needed but show all the substrates involved in each reaction and the name of the enzyme. Changed mechanism of the transmission of infectious bacterial diseases with examples.
What is the main difference between enveloped and nonenveloped viruses? How does this affect entry of each kind of virus into the host cells? Variances are expressed.
An assured drug that is used to control high blood pressure stimulates K+ excretion in the kidney such that plasma [K+] decreases from a normal value of 5 mM to 2.5 mM. Intracellular [K+] is largely unaffected. What effect this drug will have on the ..
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