Before and after handling food, going to the bathroom, changing diapers, or touching pets, wash your hands with soap and hot water. To clean up spills or kitchen surfaces, use paper towels or clean cloths along with hot, soapy water. Use your washing machine's hot cycle to often wash cloths.
<h3>What is bacterial contamination?</h3>
When bacteria build up on food and make it spoil, this is called bacterial contamination. Eating that food can make you ill, either because of the toxins released by the bacteria or because of the germs themselves. According to bacteria contamination, there are three basic forms of foodborne sickness.
<h3>What is a typical bacterial contamination source?</h3>
The incidence, fate, movement, survival, and multiplication of pathogens in the multiple sites where they are found are all influenced by a number of factors, including contaminated manure, irrigation water, soil, cattle, and wildlife.
<h3>What is the most effective means of preventing biological contamination?</h3>
- Food handlers must always adhere to safe food handling procedures to reduce the danger of biological food contamination and slow down bacterial growth.
- Exclude high-risk foods from the temperature danger zone, such as meat, poultry, shellfish, eggs, and dairy.
- High-risk foods should be properly bought, stored, thawed, prepared, cooked, and served.
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The three domain system is develop by Carl Woese and is used to classify biological organisms. Under these would be bacteria,archaea and eukaryota. There are also kingdoms namely archaebacteria,fungi, plantae, etc.The answer on this question would be letter b. archaea
I believe that would be natural selection
Answer:
1. A mutation that causes changes in the amino acid sequence downstream of the mutation is called FRAME SHIFT MUTATION. The correct option is D. A frame shift mutation is one in which the mutation is caused either by the addition or deletion of base pairs in the DNA of a gene, this results in the translation of the genetic code in the wrong reading frame starting from the position of the mutation to the end of the affected gene. Frame shift mutation result in the production of nucleotide that are not divisible by three. Because the nucleotide codons are usually pair in three, frame shift mutation causes a change in the reading frame and this result in a protein translation that is different from the original.
2. The correct option is D.
If the third base A is deleted from the codon given in the question, it will results in the formation of frame shift mutation and this will change the translation of the protein from leucine to tyrosine. The deletion will not affect the first amino acid in the sequence.
3. Albinism is a type of mutation that can is described as DELETERIOUS. The correct option is D.
Deleterious mutation refers to any type of mutation which reduces the fitness of a living organism. Albinism is a medical condition in which an individual experience a partial or total loss of skin pigmentation. The condition is a genetic disorder that is caused by lack of adequate amount of melanin pigment in the skin. Albinism causes vision loss, extreme sun sensitivity and stigma.
4. The type of mutation that occur is INSERTION. The correct option is B. Insertion is a type of mutation in which one or more nucleotide base pairs are added to a DNA sequence. The inserted base pairs can be small or large. Examples of disease conditions that resulted from insertion mutation are Huntington's disease and fragile X syndrome.
Shield volcanoes have a type of lava<span> that is very fluid when it erupts. Explosions only happen if water somehow gets into the </span>vent,<span> otherwise they are low-explosivity and form cones and the vent.</span>
