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Galina-37 [17]
3 years ago
15

Which principle helps to explain the reason behind why the two alleles for a single trait separate from each other when gametes

are made, allowing to ensure that each gamete only carries one allele?
Biology
1 answer:
Misha Larkins [42]3 years ago
3 0
The law of A. <span>segregation </span>is the Mendel’s laws or principles explain that traits are passed from parents to offspring individually instead of as pairs, groups or sets. So the correct option is option “A” as far as the given question is concerned. This is a law or principle which states that during the formation of gametes, two copies of each heredity factors separate out so that the new offspring can get one factor of both the parents. This law was the first law in this direction.

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If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next genera
Kisachek [45]
Q = recessive allele frequency = 0.3, and thus in H-W equilibrium there are ONLY two alleles, q (recessive) and
p (dominant). Therefore all of the p and q present for this gene in a population must account for 100% of this gene's alleles. And 100% = 1.00.
So p, the dominant allele frequency, must be equal to 1 - q --> p = 1 - q
p = 1 - 0.3 = 0.7.
Since heterozygotes are a combination of the p and q, we must again look at the frequencies of each genotype: p + q = 1, then (p+q)^2 = 1^2
So multiplying out (p+q)(p+q) = 1, we get: p^2+2pq+q^2 = 1 (all genotypes), where p^2 = frequency of homozygous dominant individuals, 2pq = frequency of heterozygous individuals, and q^2 = frequency of homozygous recessive individuals.
Therefore if the population is in H-W equilibrium, then the expected frequency of heterozygous individuals = 2pq = 2(0.7)(0.3)
2pq = 2(0.21) = 0.42, or 42% of the population.
Hope that helps you to understand how to solve population genetics problems!
7 0
3 years ago
Which of the following does NOT affect the flow of groundwater through an aquifer ? a. porosity C. gradient b . chemical weather
creativ13 [48]

Answer:

b . chemical weathering

Explanation:

Chemical weathering is not affected the flow of groundwater through an aquifer but affect by the porosity and permeability. The rate of groundwater flow is controlled by two properties of the rock which are porosity and permeability. Porosity is the percentage of void space in a rock while on the other hand, Permeability is the quality of being permeable means able to be penetrated or passed through by a liquid or gas.

4 0
3 years ago
The coat that surrounds the genetic material of a virus is made of what material? (
Anettt [7]

Answer:

Protein

Explanation:

  • The protein-covered coat that surrounds the genetic material of a virus is called a capsid.
  • There are mainly three structural shapes of a capsid :
  1. Icosahedral
  2. Prolate
  3. Helical
  • The functions of capsid includes:
  1. Protection of viral genome i.e., either DNA or RNA from dissolution.
  2. Helps in penetration of virus in host cells.

For More Information:

brainly.com/question/17846775

5 0
3 years ago
Read 2 more answers
What types of carbon-based molecules are most often broken down to make ATP? Explain how ATP production differs depending on the
vodomira [7]

Answer:

Carbohydrates. Depending on the carbon-based molecule broken down, the amount of ATP produced will be less or more.

Explanation:

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6 0
3 years ago
____, which can be natural or artificial, are chemical substances added to food to slow the growth of the microorganisms that ca
-Dominant- [34]

Answer:

Preservatives

Explanation:

8 0
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