Nitziaruiz1
09.06.2021 •
Biology
Why is a “DNA extraction” performed prior to any other form of testing? And, is it required?
Question 2 options:
1)
Yes it is required; it is used to estimate the quality and quantity of a DNA sample
2)
No it is not required; It breaks the cell membranes and can degrade DNA
3)
Yes it is required; it is how we determine if the DNA profile is male or female
4)
Yes it is required; It breaks open the cells and releases DNA
5)
No it is not required in all cases; it is only used to remove a biological stain from clothing
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Ответ:
Gametes that are the same in size and shape. Having gametes of different size and shape. Usually oogamous organisms have eggs and sperm. The female gonad in animals.