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Karolina [17]
3 years ago
14

What is the approximate percentage of guanine in the DNA genome of E. coli?

Biology
1 answer:
Nadya [2.5K]3 years ago
6 0

Answer:

25%

Explanation:

<em>The approximate proportion of G + C content in the genome of E. coli has been reported to be 50%. According to Chargaff's rule, the amount of guanine in any DNA must be approximately equal to the amount of cytosine. </em>Hence,

if G + C = 50 and G = C,

then

G = C = 25

Therefore, the approximate percentage of guanine in the genome of <em>E. coli </em>would be 25.

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Vadim26 [7]

The right option is; b. They can prevent new development that would harm established residents.

Zoning laws are laws that are created to specify the areas in which commercial, residential, industrial, or recreational activities may occur. Zoning involves grouping land in a town into zones in which certain land uses are prohibited or allowed. Through zoning, the governments regulate the physical development of land and buildings, and restrict how people can use their properties.

8 0
3 years ago
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Human blood type is an example of what where both the A and B blood types can be expressed semiagenously
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Codominance is an inheritance pattern. Human blood type is an example of CODOMINANCE where both the A and B blood types can be expressed.

<h3>What is codominance?</h3>

Codominance refers to the inheritance pattern in which a phenotype expresses two alternative variants coded by two alleles inherited from each homozygous parent.

When two individuals, that are homozygous and different for a trait, are crossed they produce heterozygous individuals.

These progenies express both parental phenotypes, as it is an additive expression of their parents' genes. Both alleles are equally expressed.

The is not complete dominance in these cases.

In the case of blood, the I gene determines the blood type of a person.

→ I is <u>completely dominant </u>over the i recessive allele.

→ Allele I can be either IA and IB, which are <u>codominant</u>.

  • The person IAi expresses the A blood type ⇒ complete dominance
  • The person IBi expresses the B blood type ⇒ complete dominance
  • The person IAIB expresses the AB blood type  ⇒  codominance ⇒ both alleles are simultaneously expressed

Human blood type is an example of CODOMINANCE where both the A and B blood types can be expressed.

You can learn more about codominance at

brainly.com/question/14053639

#SPJ1

6 0
2 years ago
Circle the class type of rock that most likely includes rock layers
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Answer:

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The correct answer is: D) H2O… CO2

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Photosynthesis is a set of redox reactions. In photosynthesis electrons are removed from water (H2O) to carbon dioxide CO2 and then used to turn CO2 into organic compounds.  

The first step: Oxygen in water is oxidized (light energy required)

The second step: Carbon in CO2 is reduced; sugar is formed (dark reaction).

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3 years ago
What is the wavelength shown in this picture?
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4cm because the wavelength is the measure of a distance between two identical peaks or Crest

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