Answer:
No
Explanation:
I can't give the numbers because I don't have the source
Purpose:Extraction and successful PCR amplification of DNA from humanremains in historical and forensic cases have great importance. The purpose of this study is to demonstrate the efficiency of a method of DNA extraction and PCR amplification of embalmed dried human cadaveric skeletal fragments and teeth specimens from Sokoto, Northwestern Nigeria.
Materials and Methods: The efficiency of a method of DNA extraction and PCR amplification was tested on thirteen (13) embalmed dried human cadaveric skeletal fragments and nine (9) teeth specimens from Sokoto, Northwestern Nigeria were used in the study.
Results: Of the 13 embalmed dried human cadaveric skeletal fragments, 12 (92.3%) samples amplified with apparent bands. For the 9 embalmed dried human teeth specimens, 7 (78%) samples amplified with apparent bands.
<span>Conclusion: The study has shown that our method of DNA extraction and PCR amplification was efficient on embalmed dried human cadaveric skeletal fragments and teeth specimens, from Sokoto, Northwestern Nigeria.</span>
<span>8. Chitinase is an enzyme that breaks down the chitin molecules in an insect's exoskeleton. The sequence of amino acids in the chitinase is an example of which level of protein structure?
==> primary
9. The amount of energy needed for a reaction to take place is the activation energy. Enzymes can lower the activation energy of a chemical reaction. Which of the following describes a way that this could happen?
==> Molecules can be brought together so they will bond more easily.
10. What is one way that RNA differs from DNA?
==> It is single-stranded.
11. Which molecule do mammals use to store extra glucose in their muscles?
==> glycogen
12. Which molecule do plants use to store extra glucose?
==> starch
13. Which element is present in all amino acids, but not necessarily in fats or carbohydrates?
==> nitrogen
14. Which statement best describes the role of DNA in the body?
==> It contains genetic information.
15. Which statement best explains how enzymes speed up chemical reactions?
==> Enzymes lower the activation energy of a reaction.</span><span>
</span>
Answer:
Hypothesized causes for the declines include habitat destruction (the most obvious cause), climate change, pathogens, introduced exotic species, pollution, and increased UV radiation. These agents may act alone or in combination to contribute to the decline of amphibian populations.
Explanation:
I think this is the answer
Hope it helps you
