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Korvikt [17]
3 years ago
15

Which one of these does not add CO2 to the atmosphere?

Biology
1 answer:
torisob [31]3 years ago
8 0

Answer:

Planting trees, CARBON CYCLE, and cooking with gas do not add Carbon dioxide to the atmosphere.

Explanation:

The atmosphere naturally breathes or decomposes carbon dioxide rocks, whereas forest fire takes place and volcanoes erupt.

The atmosphere is naturally decomposed. Human activities like fossil fuel and forest burning, and cement production, also add carbon dioxide to the atmosphere.

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Describe the process of altering the genetic variation of a cell using a genetically modified virus for human gene therapy. In t
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In human gene therapy, a genetically modified virus (a.k.a. a viral vector) can alter the genetic variation of a cell, but not all viral vectors do.

The process often begins with the delivery of or creation of a segment of viral double stranded DNA (containing the gene you want to introduce). Then typically an enzyme known as an integrase cuts the ends of the segment of viral DNA and also cuts open the cell's DNA. Then the viral DNA is integrated/ inserted into the cell's DNA. The connecting ends are ligated together and adjusted so that the nucleotide base pairs match up.

This in the future may affect the gene pool for instance if the viral DNA (your gene) was inserted in the middle of another gene or important regulatory sequence of the cell DNA, and this alteration may be passed on into offspring and become present in the gene pool, which could have bad effects.

The effects on the gene pool really depends on what the virus ends up doing. For example, it may fix the function of a damaged gene which is the goal, and allow for a working gene to be in the gene pool, which would be good. The problem with gene therapy is that it's difficult to predict 100% what the virus will do every time it is given to a patient.

But it's very important to consider that it will only affect the gene pool if the virus is able to enter and alter germ cells (reproductive cells). If the virus, enters somatic cells (regular body cells) this will not be passed on to future generations. So viruses can be designed to avoid germ cells and avoid this gene pool issue. Also, some viral vectors use viruses that do not integrate their DNA, the cells just express the viral DNA (create the desired protein from it) and over time the viral DNA is degraded/ lost which wouldn't pose this threat.

This is long, but I hope it helped!
3 0
3 years ago
What is the function of a cell membrane?
kvasek [131]

Answer:

the answer is A

Explanation:

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6 0
2 years ago
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A change in the frequency of alleles in a gene pool can be explained by all of the following except?
ivanzaharov [21]
The correct answer of the given question above would be option D. CHROMOSOMAL POTENTIAL. A change in the  frequency of alleles in a gene pool can be explained by all of the following except the chromosomal potential. <span>A change in allele frequency is more likely to produce microevolution. Hope this answer helps.</span>
4 0
3 years ago
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eduard

Answer:

Snake venom involves enzymes, proteins and substances with a cytotoxic, neurotoxic effect and coagulants.

Explanation:

Snake venom is very deadly because of the enzymes it contains. For example, Snake venom hinders cholinesterase which causes loss of muscle control.

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butalik [34]
I answered it before !!

B is the correct one !! Mitosis in two identical diploid and meiosis in 4 genetically varied haploid !!
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