A.Ozone it's O3 and 100% not nitrogen lol
You don't show the picture, but I can give you an overview.
A frameshift mutation is anything that puts the regular order of 3 nucleotides (a codon) out of it's norm. If these things happen, then you get a frameshift.
Note: This occurs in the gene - not outside of the coding sequence:
1. Loss of a single basepair (perhaps the A in bold):
ATG AAA ATT CTG CCC T...
ATG AAA TTC TGC CCT ....
The codons after AAA are now completely different so this will result in a different amino acid pattern and thus a completely different polypeptide (protein) that may nor may not be functional.
2. Loss of two basepairs (so perhaps 2 of the A's)
ATG AAA ATT CTG CCC T...
ATG AAT TCT GCC CT....
3. Gain of 1 base pair will also cause problems:
ATG AAA ATT CTG CCC T...
ATG AAA AAT TCT GCC CT...
4. Gain of 2 base pairs will also cause problems:
ATG AAA ATT CTG CCC T...
ATG AAA AAA TTC TGC CCT...
Answer:
Explanation:
Escherichia coli, is a type of bacteria that lives in the intestines. It's also found in the gut of some animals. Most of them are harmless, they aid keeping the digestive tract healthy. Though if contaminated food or fouled water is consumed, some strains can cause diarrhea .
Catalase enzymes, hydroperoxidase I (HPI) and HPII, catalyze the dismutation of hydrogen peroxide to water and oxygen but they play crucial roles in protecting cells against the effects of oxidative stress.
Some examples of pathogenic microorganisms which produces catalase include staph, bacillus, aureus,etc
Test Procedure:
- With the aid of a loop or sterile wooden stick, a small amount of bacterial colony should transferred onto the surface of clean, dry glass slide .
- A drop of 3% Hydrogen peroxide should be placed on to the slide and mixed.
- A positive result is indicated by the rapid evolution of oxygen gas (within 5-10 seconds), which is evident by bubbling, while a negative produces no bubbles or only a few scattered bubbles.
- The used slide should be disposed in the bio hazard glass disposal container.
Explanation:
a.no. b.no c.no d.si e.si
