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Viefleur [7K]
3 years ago
13

In later chapters, you will learn more about the regulation of gene expression. One way to regulate gene expression is to make c

hanges to the histone proteins to alter how tightly the DNA is coiled and wrapped. The more tightly coiled and wrapped a particular region of DNA is, the less likely it is that the genes in that region will be expressed. Bearing this in mind, how tightly do you think regions of heterochromatin are compacted?
Biology
1 answer:
babymother [125]3 years ago
8 0

Answer:

Highly condensed.

Explanation:

The different region of the eukaryotic chromosome are euchromatin region and heterochromatin region. The heterochromatin region is genetically inactive whereas euchromatin region is highly active.

The heterochromatin region is generally present at the periphery of the nucleus. This region is transcriptionally inactive. This is because of the compactness of DNA. DNA is packed very tightly or present in highly condensed form with the histones.

Thus, the answer is highly condensed.  

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Study the following statements, which compare the method of fermentation preferred by yeasts to they type of fermentation that m
Volgvan

Answer:

Only one of the three statement is true; and that is,

(ii.) Different metabolic end products result from the two types of fermentation

Explanation:

Fermentation is the process by which organic molecules such as glucose are broken down into smaller molecules to extract energy as ATP in the absence of oxygen.

Fermentation is carried out by many organisms including man.

In man, fermentation occurs in very active skeletal muscles such as in an athlete running. It involves the reduction of pyruvate produced from the glycolytic pathway to lactate in the muscles. The net yield of ATP from glucose breakdown to produce lactate is 2 ATP molecules.

In microorganisms such as yeast, the fermentation product of py ruvate derived from glycolysis is ethanol and carbon dioxide, CO₂. The net ATP yield in fermentation of glucose in yeast cells is also 2 ATP molecules.

From the options provided in the questions, the correct option is:

Only one of the three statement is true and that is that, ii. Different metabolic end products result from the two types of fermentation.

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2 years ago
In what ways are sponges important ​
mestny [16]

Answer:

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Explanation:

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3 0
3 years ago
What are viruses? (not computer viruses)
lubasha [3.4K]

Answer:

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6 0
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Despite the high-level of biodiversity, this biome has infertile soils, principally oxisols, to which the vegetation has roots s
irina [24]
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Soil types are highly variable in the tropics and are the result of a combination of several elements or variables which includes climate, vegetation, topographic position, parent material and also the soil age. Most of the tropical soils are described by leaching and poor nutrients. It also has two classifications: namely the ultisols and oxisols. Ultisols are known as well-weathered, acidic red clays soils. They are deficient primarily in major nutrients such as potassium and calcium. Oxisols are also an acidic type of tropical soil. However, they are well drained compared to the ultisols.
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