1. (a)What are the differences between the bonding site of a competitive inhibitor compared to an allosteric inhibitor

ANSWER: The bonding site of competitive inhibitors is at the active site on the enzyme, while the bonding site of allosteric inhibitors is NOT at the active site of the enzyme.

EXPLANATION: Competitive inhibitors compete with other substrates by binding to the specific enzyme's active site so that the other substrate cannot bind to it (the competitive inhibitor and the substrate it competes with will have similar shapes that are complementary to the active site of the enzyme).

On the other hand, allosteric inhibitors bind to an area on the enzyme that is NOT the active site. This causes the enzyme to change its shape and therefore change the shape of its active site.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.