They must occur in the DNA, which is in each cells nucleus. More specifically the nucleolus of the cell. A mutation occurs in an allele, where a base triplet (or a codon) gets transcribed incorrectly.
HI
The answer is : Appearance
I hope that's help !
Answer:
<h2>genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles.</h2>
Correct answer: False
A primary source provide the first hand proof and the original information of the event, object, person or work.
Example: Research data, e.g. public opinion polls, speech
Secondary source is that source of information that is not performed or collected by the individual but it is taken from old information. It is updated by someone who is not participation in the event or the research.
Example: Library, ebook, reviews.
The answer in this question is known as antisepsis. Antisepsis is the chemical agents that is used directly on exposed body surfaces to destroy or inhibit vegetative pathogens. Antisepsis is defined as the practice of using antiseptic to eliminate the micro-organism who causes of having a disease.