Answer:
Explanation:
An allosteric enzyme is one in which the activity of the enzyme can be controlled by the biniding of a molecule to the "allosteric site". This really just means somewhere other than the active site. Thus allosteric control of an enzyme can be classed in two ways. A positive allosteric modification is the binding of a molecule to the enzyme which increase the rate of reaction. Sort of like catalysing the catalysing effect of an enzyme. Obviously the opposite is true of negative allosteric modification. A good example for this is the activity of phosphofructokinase, which is promoted by a high AMP concentration, and inhibited by a high ATP concentration. This should make sense if you think about the action of a kinase etc.
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Answer:
shark are slow evolving species because of lower gene flow and rate if reproduction.
Darwin finches undergo divergent evolution
Explanation:
Sharks have evolved slowly because of following reasons –
a) Lower rate of reproduction
b) Restricted gene flow because of isolated habitat such as stretches of deep water
c) Staying close to the eggs and hence guarding them throughout their life thereby allowing no cross mating.
d) Lower rate of mitochondrial DNA (mtDNA) evolution
Darwin’s finches show divergent evolution as different species of finches originated from a common ancestors. The beak size of finches vary form one species to other because of different diet habits
It'll take an infinite amount of time.
The function seems to be f(x)=100(1/2)^x, which won't ever result in 0.
Answer: Allopatric speciation
Explanation:
Allopatric speciation refers to the rise of new distinct species of offspring from parental organisms that DO NOT live in the same territory, that is geographically isolated and thus unable to crossbreed.
Definitely, the emergence of healthy and hybrid offsprings from the TWO species of antelope, from Africa and Asia, breed together in the Zoo could be explained by ALLOPATRIC SPECIATION.
