During the krebs cycle NADH (Nicotinamide adenine dinucleotide) and FADH (<span>Flavin adenine dinucleotide) are made and used in the electron transport chan. Hope this helps!</span>
Science is the study and learning mechanism of the world and how everything is created as well as used today and billion of years ago
Answer:
Explanation:
"Bacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. Two samples isolated from the Deepwater Horizon leak in the Gulf of Mexico were labeled A and B. The DNA of each was isolated and the percent thymine measured in each sample. Sample A contains 19.3 % thymine and sample B contains 29.7 % thymine. Assume the organisms contain normal double‑stranded DNA and predict the composition of the other bases."
DNA is made up of four bases: Adenine (A), Thymine (T), Cytosine (C) and Guanine (G).
- Adenine and Thymine are paired and are joined by two hydrogen bonds: A-T.
- Cytosine and Guanine are paired and are joined by three hydrogen bonds: C-G.
If Sample A contains 19.3% thymine, therefore it contains the same percentage of adenine. Added together 19.3+19.3=38.6%.
Since A-T is 38.6%, therefore C-G is 100 - 38.6% = 61.4%
Dividing 61.4% in half, C and G are 30.7% each.
In summary, for Sample A:
Adenine = 19.3%
Thymine = 19.3%
Cytosine = 30.7%
Guanine = 30.7%
For Sample B, since thymine is 29.7%, adenine is also 29.7%
So A-T is 29.7 +29.7 = 59.4%
C-G = 100 - 59.4 = 40.6%
Dividing 40.6% in half, C and G are 20.3% each
In summary, for Sample B:
Adenine = 29.7%
Thymine = 29.7%
Cytosine = 20.3%
Guanine = 20.3%
Answer:
Potassium
Explanation:
This mineral salt helps to trap light in photosynthesis is potassium.
Answer:
d.) Trees
cause they can grow back again after they are used
