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Delvig [45]
3 years ago
10

In humans, the allele for Huntington's disease is dominant. What genotype would a pure breeding human have?

Biology
1 answer:
Whitepunk [10]3 years ago
8 0
Someone with Huntington’s would have the genotype AA or Aa if “A” is the allele (dominant).
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Human blood type is an example of what where both the A and B blood types can be expressed semiagenously
Charra [1.4K]

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

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6 0
2 years ago
Which of these is an environmental effect of deforesation?
Nata [24]
"Deforestation is the permanent destruction of forests in order to make the land available for other uses. An estimated 18 million acres (7.3 million hectares) of forest, which is roughly the size of the country of Panama, are lost each year, according to the United Nations' Food and Agriculture Organization (FAO)"
The conversion of forests into agricultural plantations is a major cause of deforestation. The increase in global demand for commodities, such as palm oil and soybeans, are driving industrial-scale producers to clear forests at an alarming rate. Indonesia, the largest producer of palm oil, was named the “Fastest Forest Destroyer,” in the 2008 Guinness World Records. Even when efforts are made to replenish barren plantations, the depleted soil is not able to produce the same biodiversity it once was."
Forest clearing for livestock ranching is another contributor of deforestation. Since 1990, Brazil, a top exporter of beef, has lost an area of forest that is three-fourths the size of Texas. A strong global demand for beef, supported by governments such as in Brazil, is expanding this kind of deforestation.
5 0
3 years ago
Explain how mining can be harmful to the environment
allochka39001 [22]

Answer:

It can lead to multiple health hazords like harmful substances and it has a huge waste of rocks and vegatation.

Explanation:

Across the world, mining contributes to erosion, sinkholes, deforestation, loss of biodiversity, significant use of water resources, dammed rivers and ponded waters, wastewater disposal issues, acid mine drainage and contamination of soil, ground and surface water, all of which can lead to health issues in local areas. Some mining methods may have significant environmental and public-health effects.

5 0
3 years ago
A nurse demonstrates the correct use of hand hygiene using an alcohol-based handrub for which situation? select all that apply.
Naddik [55]

The correct use of hand hygiene using an alcohol-based hand-rub are for these situations:

  • After removing gloves,
  • Before entering a client's room,
  • After applying a clean, dry dressing

<h3>What ae the steps required to maintain hygiene in a hospital environment?</h3>

Hygiene is the process by which an clean environment free of germs is kept in place.

A  hospital environment requires that proper hygiene is maintained in order to prevent the outbreak of diseases.

Some steps in maintaining hygiene in the environment include:

  • Mopping the floors with disinfectants liquids
  • Cleaning of surfaces with alcohol-based sanitizers
  • Using an alcohol-based hand-rub

The nurse will demonstrate the correct use of hand hygiene using an alcohol-based hand-rub as follows:

  • After removing gloves,
  • Before entering a client's room,
  • After applying a clean, dry dressing

In conclusion, alcohol-based hand-rubs are important to maintain hygiene.

Learn more about alcohol-based hand-rubs at: brainly.com/question/25051422

#SPJ1

6 0
2 years ago
Describe the production and processing of a protein that that will be exported from a eukaryotic cell.
12345 [234]
Firts you begin with the separation of the messenger (RNA) from the (DNA) template and end with the release of the protein at the plasma membrane.

8 0
3 years ago
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