Experimental. Dr James used an experimental model of research for his study which involved facial symmetry. Experimental studies basically comprise of an independent and dependent variable. The goal is to observe if the independent variable has an effect on the dependent variable, and if it has how strong and where is it heading? This is how an experimental study is performed.
Answer:
Acute stress disorder
Explanation:
Acute stress disorder or ASD is a condition that may appear after a traumatic event. Generally, ASD is said to be a temporary condition (meaning that it may last from 3 to 30 days after the traumatic event took place). If it is not cured, then doctors may consider the condition to be PTSD (post traumatic stress disorder). A person who suffers from ASD usually experiences the following symptoms: the person goes back to that event over and over again through memories, flashbacks; the person is usually sad or in a low mood; the person experiences lack of awareness, inability to remember some important parts of the traumatic event; the person may also experience insomnia, anxiety and depression.
The single-stranded genomic DNA, the SDS, and the cellular waste are precipitated in a high-salt environment that is created by the potassium ion from the potassium acetate.
After centrifugation, the supernatant will still contain your plasmid DNA. Plant DNA has frequently been extracted using the potassium acetate method.
It has been suggested in situations when several markers need to be evaluated on the same samples since it generates enough DNA to test a high number of markers. Typically, laboratory procedures call for the use of potassium acetate.
In molecular biology applications, potassium acetate precipitates sodium dodecyl sulfate (SDS) and SDS-bound proteins to enable their removal from DNA. It may also be employed as a salt for the ethanol precipitation of DNA.
To learn more about potassium acetate
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Answer:
Explanation:
It’s 4 with the power of 10
