Ranking on hormonal levels presents on mutant ob, db and normal rats parabiosed to either.
(db rat +ob rat) ( db rat + normal rat) (ob rat + norma rat )(normal rat + normal rat )
Rats are ranked according to leptin levels. Leptin levels are directly proportional to the production of adipose fats present.
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Homeostasis. If you mean the region of the brain that controls this process then it’s the hypothalamus
Answer:
97%
Explanation:
PKU is caused by a recessive mutation, which means that affected individuals are homozygous and recessive (<em>tt</em>).
<u>The frequency of genotypes according to Hardy-Weinberg equilibrium is:</u>

where p is the frequency of the <em>T</em> allele and q is the frequency of the <em>t</em> allele.
Affected individuals are 1 in 4500, which means the frequency of <em>tt </em>genotype is 1/4500.
If the population is in Hardy-Weinberg equilibrium,

The sum of the allele frequencies adds up to 1, therefore:
p + q = 1
p= 1 - q
p= 1 - 0.015
p= 0.985
The frequency of the TT genotype (homozygous wild-type individuals) will be:

97% of the population will have the homozygous wild-type TT genotype.
The answer to this is the plate tectonics theory.
The earth's lithosphere is divided into large, moving sections which are called the tectonics plates.
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