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zvonat [6]
3 years ago
8

hypothesize why the thickness of seafloor sediments increases with increasing distance from the mid-ocean ridge

Biology
1 answer:
goldfiish [28.3K]3 years ago
3 0
As the plate moves from the ridge, sediments from erosion settle on the plate as it nears land.
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When you breath oxygen enters your body and gets transported to your blood cells
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In humans, Rh-positive individuals have the Rh antigen on their red blood cells, while Rh-negative individuals do not. If the Rh
bixtya [17]

Answer: 60%

Explanation:

In population genetics, the Hardy-Weinberg Principle states that the genetic composition of a population remains in equilibrium as long as no natural selection or other factors are active and no mutations occur.

The frequencies of the genotypes of an individual locus will be set to a particular equilibrium value.<u> It also specifies that these equilibrium frequencies can be represented as a simple function of the allelic frequencies at that locus</u>. In the simplest case, with a locus with two alleles A and a, with allele frequencies of p and q respectively, the principle predicts that <u>the genotypic frequency for the dominant homozygous AA is p^2, that of the heterozygous Aa is 2pq and that of the recessive homozygous aa, is q^2. The allele frequency of a is represented as p and the frequency of recessive allele is q.</u>

The three genotypes AA : Aa : aa appear in a ratio p² : 2pq : q². If we add them up, we get the unit:

p^2 + 2pq + q^2 = (p + q)^2 = 1  

And p + q = 1

<u>Rh-positive genotypes are represented as AA (homozygous dominant) or Aa (heterozygous) since the presence of a single dominant allele is sufficient to express the phenotype. While Rh-negative genotypes are represented as aa. </u>

If 84% of the population is Rh-positive, that means that this percentage includes all those who are AA and Aa. Then 16% are aa.

F(aa)=q^2=0.16

then F(a)=q=0.4

And since p + q = 1, p + 0.4 = 1, then p is 0.6

We can also calculate the rest, then F(AA)=p^2= 0.36

So F(Aa)= 2pq = 2 x 0.6 x 0.4 = 0.48

Notice that 0.36 + 0.16 + 0.48 = 1

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3 years ago
Which change will most likely occur in the future, based on the current consumption of ground water O A. The polar Ice caps will
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were all going to die of dehydration in the future :)

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Draw a Punnett Square to show a cross between a chocolate lab that is homozygous dominant for the epistatic gene and a black lab
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Answer: geno 50% 50%

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Explanation: the punnett square should have 2 capital L's across the top and down the side one capital L and one lower case L. The firs box should be LL the second box should be LL the third box should be Ll and the fourth should be Ll

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