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IgorC [24]
3 years ago
5

What do the indicators used by economists reveal?

Biology
2 answers:
Veronika [31]3 years ago
8 0

Answer:

4

Explanation:

Changes in the health of an economy

Musya8 [376]3 years ago
6 0

changes in prices

Explanation:

edg

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Industrial melanism refers to the dark pigmentation that evolved in some insects giving them protective coloration on vegetation
Natalka [10]

Answer:

  • The frequency of the dominant allele, p =  0.542
  • The proportion of black moths that are heterozygous 2pq = 0.496

Explanation:

According to Hardy-Weinberg, the allelic frequencies in a locus are represented as p and q, referring to the allelic dominant or recessive forms. The genotypic frequencies after one generation are p² (Homozygous dominant), 2pq (Heterozygous), q² (Homozygous recessive). Populations in H-W equilibrium will get the same allelic frequencies generation after generation. The sum of these allelic frequencies equals 1, this is p + q = 1.

In the same way, the sum of genotypic frequencies equals 1, this is

p² + 2pq + q² = 1

Being

  • p the dominant allelic frequency,
  • q the recessive allelic frequency,
  • p² the homozygous dominant genotypic frequency
  • q² the homozygous recessive genotypic frequency
  • 2pq the heterozygous genotypic frequency

In the exposed example, 79% of the moths of the species Biston betularia were black due to the presence of a dominant gene for melanism.

If the genotypic frequency of back moths is 0.79, then, by performing the following equation we can get the not-black moths genotypic frequency:

p² + 2pq + q² = 1

where p² is the homozygous dominant genotypic frequency, q² the homozygous recessive genotypic frequency, and 2pq is the heterozygous genotypic frequency.

As 0.79 is the phenotypic frequency of black moths, then this frequency equals p²+2pq.

Clearing the equation:

p² + 2pq + q² = 1

0.79 + q² = 1

q² = 1 - 0.79

q² = 0.21

The genotypic frequency of non-black moths is 0.21. So, from here we can calculate the allelic frequency:

q² = 0.21

q= v 0.21

q = 0.458

If 0.46 is the allelic frequency of non-black moths, then by clearing the equation p + q = 1, we can get the p allelic frequency:

p + q = 1

p + 0.458 = 1

p = 1 - 0.458

p = 0.542

  • The genotypic frequency p² = (0.542)² = 0.294
  • The heterozygote genotypic frequency

        2 x p x q = 2 x 0.542 x 0.458 = 0.496

Finally, we can check this answer by clearing the following equation:

p² + 2pq + q² = 1

0.294 + 0.496 + 0.21 = 1                  

4 0
3 years ago
Plz help me!
Rama09 [41]

Its A enzymes are like a lock and key, if it is changed it wont fit, and they enzyme cant break down the glucose.

3 0
3 years ago
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What a worm's body part that helps it dig tunnels Underground
Anvisha [2.4K]
Setae which are tiny feelers helps it dig tunnels underground
5 0
3 years ago
Every one person has how many different types of genes
Liula [17]

Answer:

20,000 genes...

Explanation:

<h3><em>Human genes vary in size from a few hundred bases to over a million bases..So every human has 20,000 genes and 3,000,000,000 bases.Your entire sequence of genes and bases is called genome..</em></h3>
8 0
3 years ago
Biology help, please!!! 30 points!!
Nina [5.8K]

B): Energy is radiated more than absorbed near the poles

D): Energy is absorbed more than radiated near the equator.

E): Energy is carried from the equator to poles in surface currents.

Explanation:

Thermal energy is a form of energy carried by heat as a result of temperature differences between two places or bodies.

At the equator the sun is overhead and directly bursting energy from space. Areas around the equator have very low albedo because the bulk of radiation is absorbed. The surfaces here are like black bodies.

At the poles, the ice caps and bodies causes the reflection of the bulk of these radiations. Such regions have a very high albedo. Most of the energy here is radiated.

  • Warm water in the equator due to absorbed energy are rises to the surface and are carried away to the pole.
  • Colder water moved from the pole towards the equator by deep ocean currents.

learn more:

Salinity brainly.com/question/10491444

#learnwithBrainly

5 0
3 years ago
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