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Gala2k [10]
2 years ago
6

Which short-term environmental change would a very small asteroid or comet impact on Earth most likely cause?

Biology
2 answers:
Igoryamba2 years ago
7 0

A short-term environmental change would a very small asteroid or comet impact on Earth most likely cause is called Surface craters

Leokris [45]2 years ago
6 0

Surface craters refers to a short-term environmental change would a very small asteroid or comet impact on Earth most likely cause.

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What kind of authority does our elected government officials exercise?​
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Answer:

Depending upon the country and community in which you live, the authority exercised by elected officials is defined by formal rules and informal norms of behavior that apply in that jurisdiction. Authority is the willing compliance, almost automatic, with dictates from figures to whom we grant that authority. The formal rules limiting government officials’ authority should protect citizens from abuses of that authority but informal norms may sometimes allow elected officials to get away with actions that violate those rules or, at least, bend them to their own purposes.

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3 years ago
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Dichotomous keys and branching diagrams organize different types of information about classification. How are these tools used d
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3 years ago
Describe the process of altering the genetic variation of a cell using a genetically modified virus for human gene therapy. In t
Len [333]
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.

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3 years ago
How many protons are in an atom krypton
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I think there’s is 36 protons
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Which of the following is common feature of the illustrated reactions showing the linking of honomers to form macromolecules?
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Monomers are joined by a covalent bond, and a water molecule is produced

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