Answer:
The selenium particles when coated on paper towels were extremely effective and continuously inhibited (about a 90% reduction) the growth of gram-positive bacteria including S. aureus and S. epidermidis after 24, 48, or 72 hours.
Answer:
c)polymerase chain reaction (PCR).
Explanation:
Because the paleontologist recovered only a bit of tissue and it is very old, it is very likely that the DNA in the sample is very small and part of it is degraded. Anyway, the paleontologist must first amplify the DNA sample to obtain many identical copies of the specific region of the DNA they want to compare. the above is done through a polymerase chain reaction (PCR).
You see first the light wave because light travels faster than sound. Hope this helps
Answer:
Amino acids
Explanation:
Nitrogen is a major part of amino acids. Which are the building blocks of proteins and nucleic acids.
Answer:
Bismuth strontium calcium copper oxide/ACM114901610 can be provided in Alfa Chemistry. We are dedicated to provide our customers the best products and services.
Explanation:
https://www.alfa-chemistry.com/bismuth-strontium-calcium-copper-oxide-cas-114901-61-0-item-195753.htm
