Q. Acetylcholine acts at the G-protein-linked receptor on heart muscle to make the heart beat more slowly by the effect of the G protein on a K+ channel. Which one or more of next would enhance this effect of acetylcholine? Explain your reasoning to all answers. (a) A high concentration […]

When working out one can choose many exercises that will strengthen muscle and burn fat. The IDEA website has many videos that will provide exercises to define and build muscles for yourself or those you may coach. The exercise I chose is the wide reverse grip barbell deadlift. This exercise […]

Question: In maize, two plants that are both heterozygous for the recessive alleles a and b are crossed. What frequency of double-mutant progeny will appear if a and b are 7.2 map units apart, and both parents carry a and b in repulsion (trans)? Question: Why are the cells of the stratum […]

In order to ensure that chromosomal DNA is replicated once and only once in each cell cycle, eukaryotic cells have evolved a complex system of control involving Cdc6, a pre-replicative complex, Origin recognition complex and S-Cdk. A. You activate the promoter of Cdc6 so that gene expression and protein production […]