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fredd [130]
4 years ago
11

Scientific models are based on current knowledge, which can let her efectiveness when nec

Biology
1 answer:
LUCKY_DIMON [66]4 years ago
8 0

Answer:

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made. True

Explanation:

A scientific model can be described as a representation of any scientific topic. The representation may be in the form of a computer simulation, 3 D model, a mathematical equation etc.

The scientific models depict the latest knowledge about a certain topic. With time, as new discoveries are made, the previous scientific theories might be eradicated and new ones might be formed. This will limit the effectiveness of the previous models and new models will have to be made.

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Please give a small paragraph quickly summarizing the what, when and how of each of the following techniques: PCR, DNA gel elect
Anuta_ua [19.1K]

Answer:

All are used to resolve questions in molecular and biochemistry/biotechnology

Explanation:

PCR: resolution of an amplicong on agarose gel to chech size after thermocycling

DNA gel electrophoresis,

Recombinant DNA, A DNA fragment that it attached to another such as a reporter, commonly used is GFP attached to protein of interest to track movement

Cloning, Duplicate an amplicon, insert into a vector, transform this vector into a bacteria that is designed to make multiple copies of itself

Northern blots, Method used to detect different sizes RNA from a mixture of other products

Southern blots, method used to detect different sizes of DNA similar to the idea of a Northern Blot

Western blots, Resolution of protein sizes by running the protein through an acrylamide gel in an ionic buffer

Antibody production (polyclonal and monoclonal),  Generating an antigen against a protein using different parts of the same protein (polyclonal) or only a specific sequence of the protein not a variety of antigens from the full length (monoclonal)

ELISA, enzyme-linked immunosorbent assay is used to check the presence of a protein

FRET, Transmission energy of one molecule to another, it is usually included in the detection of colors in fluorescence microscopy

FRAP, this method will is called Fluorescence recovery after photobleaching, a microscospy measurement

FACS, this is a type of cell sorting Fluorescence-activated cell sorting

Fractionation by centrifugation, Lysis of agents such as cells that can be lysed by spinning in a centrifuge

Chromatography, separation of chemical thru a media by colors

Fluorescence microscopy,  use of fluorophore to detect specimen under a microscope a specific wavelength

Coomassie staining,  procedure used to stain an acrylamide gel or membrane to show protein presence

Silver staining, use of a silver colloid to change the way proteins are seen on a Western blot or under a microscope

His tag, a string of histidine residues attached to a protein for easy manipulation/detection

GST tag, Glutathione S-transferases is a group of proteins used in protein purification an option other than His tag

Confocal microscopy,

FISH, The generation of a nucleotide probe used in DNA sequence detection in histology

PCR, Polymerized chain reaction used to amplify selected region of DNA

DNA library, the collection of gDNA of a specific specie or tissue

cDNA library, collection of the coding sequence of a organism/tissue

Microarrays, the platform used to detect thousands of gene sequences at once

Sanger sequencing, Method used to derrive DNA sequence developed by Frederick Sanger by incorporating a single nucleotide at a time

GFP, Green fluorescent protein, a reporter protein used in recombination protein creation

Bright field microscopy, microscopy that uses light or natural light to detect samples

DIC microscopy, Differential interference contrast is used to detect and enhance the different levels of contrast of a specimen

Phase contrast microscopy, Microscopy technique used to detect the different states of matter of a specimen

Fluorescence microscopy, use of fluorophore attached to sample for investigation

Transmission electron microscopy, uses beams of electrons to pass through a sample to then create an image

Scanning electron microscopy,  the surface of a sample is scanned with a beam of electrons to generate an image

X ray crystallography, determining a structure of a protein my using an x-ray technique

2D PAGE electrophoresis,  separation of proteins by two phases sizes and charges

NMR,  Nuclear magnetic resonance, spinning of all the nuclei and measurement of the energy that it gives off.

Mass spectrometry Protein sequencing technique based on weight

4 0
3 years ago
GUYSSS HELPP, ILL MARK YOU BRAINLYYY
PolarNik [594]

Explanation:

1 light energy

2 chemical energy

3 chemical energy

4 light energy

8 0
3 years ago
Read 2 more answers
Please help me...Why is it important for a health care provider to maintain accurate patient records?
Serggg [28]

Answer:

Explanation:

An accurate written record detailing all aspects of patient monitoring is important, not only because it forms an integral part of the of the provision of care or nursing management of the patient, but because it also contributes to the circulation of information amongst the different teams involved in the patient’s treatment or care.

In a legal sense, documentation and record keeping is also there for the protection of the nurse or healthcare professional.

A well-kept record can protect the practitioner in instances where the legal defence of their actions is required. Documentation also ensures a matter of professionalisation and proof of the improvement of practices.

5 0
3 years ago
HELPPPPPPPPP !!!!!!!!!!!!!
stich3 [128]

Answer: I believe the answer would be 2

Explanation:

4 0
3 years ago
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Stomach cancer produces gastric tumors called
marta [7]

Gastrointestinal stromal tumor (GIST)

Stomach cancer can also be refers to as gastric cancer, thus, stomach cancer develop from the inner lining of the stomach. However, tumor produced by the gastric cancer is known as gastrointestinal stromal tumor (GIST). Some of these tumor are non-cancerous while other are cancerous and they can be found anywhere in the digestive tract.






7 0
4 years ago
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