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Juliette [100K]
3 years ago
8

Given values for density and volume, which formula finds the mass

Biology
2 answers:
irinina [24]3 years ago
5 0
Answer: Mass = Volume x Density
Contact [7]3 years ago
5 0

Answer:

mass = density × volume

Explanation:

The density of a material is calculated using its mass and the amount of space occupied by it. Mathematically, it is given by :

\rho=\dfrac{m}{V}..............(1)

Where

\rho is the symbol of density

The SI unit of density is g/cm^3 or kg/m^3.

From equation (1) we can calculate the mass of the substance as :

m=\rho \times V

or

mass = density × volume

Hence, this is the required solution.

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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>

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<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

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

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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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