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Wewaii [24]
3 years ago
7

What is one reason nuclear fuel is a positive alternative to fossil fuels for the creation of electrical energy? A) Nuclear powe

r is much less hazardous than coal or oil power production. B) Nuclear power is much more widely available than coal or oil power production. C) Nuclear power produces no carbon dioxide emissions unlike coal or oil power production. D) Nuclear power does not require the use of natural resources like coal or oil power production.
Biology
2 answers:
Dovator [93]3 years ago
7 0

The answer is C. nuclear power produces no carbon dioxide emissions unlike coal or oil power production

Artyom0805 [142]3 years ago
3 0

Answer is C) - Nuclear power produces no carbon dioxide emissions unlike coal or oil power production.


Nuclear power use natural Uranium to make energy and water is used as cooling process. Hence, nuclear power production uses natural resources.


The waste is very harmful in nuclear power production. That should be managed by a proper way.


Although nuclear power can produce a huge energy, the availability of nuclear power is less than coal and fossil fuels.


But the greatest benefit of nuclear power is, it does not emit carbon dioxide which contributes to global warming.


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People with achondroplastic dwarfism are heterozygous for a dominant allele conferring this trait. The homozygous dominant condi
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The allele for dwarfism - D its dominant
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Dd X. Dd
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3 years ago
DNA Polymerase helps copy a DNA molecule during the process of what?
PtichkaEL [24]
The DNA polymerases are enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two identical DNA strands from one original DNA molecule. During this process, DNA polymerase “reads” the existing DNA strands to create two new strands that match the existing ones.

Every time a cell divides, DNA polymerase is required to help duplicate the cell’s DNA, so that a copy of the original DNA molecule can be passed to each of the daughter cells. In this way, genetic information is transmitted from generation to generation.

Before replication can take place, an enzyme called helicase unwinds the DNA molecule from its tightly woven form. This opens up or “unzips” the double stranded DNA to give two single strands of DNA that can be used as templates for replication.

DNA polymerase adds new free nucleotides to the 3’ end of the newly-forming strand, elongating it in a 5’ to 3’ direction. However, DNA polymerase cannot begin the formation of this new chain on its own and can only add nucleotides to a pre-existing 3'-OH group. A primer is therefore needed, at which nucleotides can be added. Primers are usually composed of RNA and DNA bases and the first two bases are always RNA. These primers are made by another enzyme called primase.

Although the function of DNA polymerase is highly accurate, a mistake is made for about one in every billion base pairs copied. The DNA is therefore “proofread” by DNA polymerase after it has been copied so that misplaced base pairs can be corrected. This preserves the integrity of the original DNA strand that is passed onto the daughter cells.



A surface representation of human DNA polymerase β (Pol β), a central enzyme in the base excision repair (BER) pathway. Image Credit: niehs.nih.gov

Structure of DNA polymerase

The structure of DNA polymerase is highly conserved, meaning their catalytic subunits vary very little from one species to another, irrespective of how their domains are structured. This highly conserved structure usually indicates that the cellular functions they perform are crucial and irreplaceable and therefore require rigid maintenance to ensure their evolutionary advantage.

7 0
3 years ago
A population of white moths lives in a forest near a factory. this factory burns coal and pollutes the air with black dust. over
marissa [1.9K]
The answer to your question is option b

This is because if the trees are black, and covered with soot due to the pollution, caused by industrialisation, the white moths will be easily seen and constantly hunted by the predator, compared with the black moth population as they camouflage easily. Ultimately, the white moths would be hunted to such an extent that their population would dramatically decrease
8 0
3 years ago
New Mexico has several natural resources that it uses for energy. An example of a NONRENEWABLE energy source is
Rudiy27

Answer:

Oil, coal, and uranium.

Explanation:

When we talk about renewable sources, we refers to a natural resource  or source of energy. The non- renewable sources means that exists in finite amount, and are not easily replenish.

Some Facts of New Mexico :

It has crude oil reserves.

Produces natural gas.

It has coal reserves .

Has uranium resources .

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What is a active transport
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The movement of Ions or molecules across a membrane from low concentration to high concentration. Which requires energy. 
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