The answer to your question would be (D) Sedimentary Rock.
Answer: Eukaryota
Explanation:
All eukaryotes have a nucleus in their cells, archaea and bacteria don't contain a nucleus. Protista have a nucleus but are classified as eukaryotes.
Answer:
Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple. Litmus can also be prepared as an aqueous solution that functions similarly.
Explanation:
The methylene blue reduction test is a test commonly used to estimate the microbial load of a milk sample and as a result, examine the quality of the milk.
The principle of this test is that methylene blue is a dye which loses its colour in the absence of oxygen. Bacterial metabolism can cause the depletion of oxygen in the milk, therefore the methylene's reduction rate is connected to the presence of microorganisms in the milk.
As a consequence, if the tubes were not sealed tightly, then oxygen will enter the tube and the dye's colour will diminish, giving a false result concerning the presence of microorganisms in the sample.
She didn’t cycle the reaction! She has to cycle as follows:
1. 95C-to denature the double stranded DNA
2. 50-55C depends on her primers- to anneal the primers to the single stranded DNA
3. 37-42C depending on the enzyme used - DNA polymerase extends from the primers to make the new DNA.
Also, are the dNTPs special? Either radioactive or with a fluorescence to measure/detect them?
