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docker41 [41]
3 years ago
8

Which of the following characteristics of living things could be applied to an automatic door at a supermarket?

Biology
1 answer:
iVinArrow [24]3 years ago
8 0
C. living things respond to stimuli in the environment
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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
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.

This is long, but I hope it helped!
3 0
3 years ago
What are some ways humans are abiotic organisms
Kitty [74]

Answer:

Abiotic factors play a large role in determining the types and traits of organisms that inhabit a given ecosystem. For example, air temperature, soil pH and type, the availability of fresh water, and the amount of sunlight all interact to influence what types of vegetation can thrive in a terrestrial habitat.

Explanation:

mark me brainliest!!

4 0
1 year ago
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What is independent assortment? When does it occur during meiosis?
SpyIntel [72]
It occurs during Anaphase II, Telophase II, and Cytokinesis, when the sister chromatids separate so that there is 1 allele per gamete.
5 0
3 years ago
A behavior with both innate and learned components that is irreversible and is triggered during a sensitive period.
rodikova [14]

Answer:

The correct answer is - Imprinting.

Explanation:

Imprinting is a behavior that includes both innate components and learning components and normally can not be irreversible. It is something that takes place at a specific sensitive period.

For instance, ducklings follow their mother is imprinting that is both innate and learned at a limited phase after birth during development. It can be visual or auditory or other ways that an animal can develop imprinting.

4 0
2 years ago
An element's atomic number is the
Tju [1.3M]
D. Number of protons in an atom's nucleus
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2 years ago
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