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Sauron [17]
3 years ago
8

What are the symptoms and incubation period of an infection by the microbial agent?

Biology
1 answer:
kherson [118]3 years ago
7 0

Answer:

Explanation: A person with a bacterial infection will often experience redness, heat, swelling, fever, and pain at the site of infection, as well as swollen lymph glands. A rash can indicate a fungal infection of the skin. However, viruses and bacteria may also cause skin conditions and rashes. While the incubation period is 2-10 days, average 3-4 days or sometimes a week.

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Which of the following is not true about cells?
ale4655 [162]
I believe it is D, the reason being is because they form on their own, not from a living or dead organism. It can't be B because that is true, and the same for C. hope this helps, have an amazing day :)
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3 years ago
What statement best compares photosynthesis and cellular respiration?
neonofarm [45]

D. Photosynthesis only takes place in the light, while cellular respiration takes place in the light and dark.

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Which of the following is NOT an accurate description of protein synthesis and folding?
julia-pushkina [17]

Answer:

OPTION b. "<em>The 3D shape of a protein is determined largely by the ribosome forming the protein" </em> is NOT an accurate description of protein synthesis and folding.

Explanation:

<em>a. Many copies of a protein can be synthesized simultaneously from the same mRNA</em>.  TRUE. As a ribosome moves along the mRNA chain synthesizing a new protein, another ribosome might follow it, synthesizing another protein from the same mRNA chain. And so on. So, at the same time, many ribosomes might be attached to the mRNA, synthesizing many copies of the protein, but at different development levels. The mRNA chain together with many ribosomes is called a <em>polyribosome</em>.

b. <em>The 3D shape of a protein is determined largely by the ribosome forming the protein</em>.  FALSE. What determined the 3D structure of the protein is the amino acid sequence of that particular polypeptide. Each amino-acid has different properties (hydrophobic, hydrophilic, positively charged, negatively charged) and they interact with each other by different bonds that depend on those poperties. So the amino acids composing the proteins and their interaction, is what models the structure of the protein.

c. <em>The entire chain of amino acid exits the ribosome before it begins folding into its 3D shape</em>.  TRUE. When the ribosome reaches the end codon, the elongation process has finished, and the new protein leaves the ribosome and is translocated to the RER lumen where it is going to get folded.

d. <em>The first encoded amino acid in every protein is methionine. </em>TRUE. Almost always, the first amino acid located by the tRNA is the methionine, codified by the initiation codon AUG. This amino acid is frequently eliminated at the end of the process.

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What conditions are most likely to produce a hurricane?
natka813 [3]
I believe the answer is B.
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3 years ago
Match these items:
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Answer:

a fertilized egg- zygote

separation of two ends of an old cell- cytokinesis

union of egg and sperm- fertilization

egg-producing organ in lower plants- archegonium

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