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Galina-37 [17]
3 years ago
11

Chargaff's rules how do they work and where

Biology
1 answer:
Harrizon [31]3 years ago
4 0
Chargaffs rules states that dna from any cell of all organisms should <span>have a 1:1 ratio (base Pair </span>Rule<span>) of pyrimidine and purine bases and, more specifically, that the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine.</span>
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Last week I was assigned a thematic. We have groups of three but the people I was assigned with haven't been in school for days.
damaskus [11]

Hello,

Please find below a short summary on the subject you have been assigned. This will help you in completing your project and also give you an overview on the current research on this subject.

Food additives are chemical substances added to food in order to either maintain or improve its physical characteristics such as taste, texture, appearance and even freshness.

The long term effects that these substances have on the human body are still largely unstudied. According to the hypothesis called "chemical obesogen", these synthetic compounds are contributing factors to the global obesity epidemic.

Although evidence-based scientific research is still lacking, the support for this hypothesis is growing as many of these additives have been found to disturb the body's endocrine functions.

Furthermore, artificial preservatives used today may increase the risk of inflammatory bowel disease. This has been shown by a study on mice in which the food additives known as emulsifiers (carboxymethylcellulose and polysorbate-80) have been shown to affect the animal's health.

Due to these chemicals, the mice not only became obese but also developed metabolic problems such as glucose intolerance.  It seems that these chemicals affect the gut bacteria population in a negative way, as mice lacking gut bacteria did not become ill.

The mice study was followed by another study in which the human simulated through a series of flasks. Under the influence of the emulsifiers arboxymethylcellulose (E566 on EU labels) and polysorbate-80 (E433), the levels of bacterial protein called flagellin increased. This protein is known to cause inflammation at high concentrations. The next step in the study will be the first human trials.

Due to the long road our food takes from the farm to our table more extensive research is required. There are thousands of compounds that change the biochemical properties of the plants and animals that constitute our diet. The effects of the degradation and accumulation of these compounds are still unknown and thus many more studies and approaches are required in order to insure healthy food and stop the current obesity epidemic. Everything that is added to our food should be carefully analyzed.

4 0
3 years ago
In the food chain of "algae-------&gt; mosquito larvae --------&gt; frogs -------&gt; racoons," algae are the Consumers Heterotr
kykrilka [37]

Answer:

Autotrophs

Explanation:

Food chain is a step by step feeding process in an ecosystem where an organism producer is been feed on by another organism that depends on it

called consumer and it is also feed on by predator. Producer usually produce their food its includes plants, Algae, phytoplankton.

The energy level moved from the producer to the last organism on the chain.

Autotrophs are the same as producer and an Algae food chain is an example of aquatic food chain where algae serves as primary source of energy(Producer) and its been feed upon by mosquito larvea and larvea by frogs and frogs are eaten by racoon.

5 0
3 years ago
What is pseudoscience? Students have been comparing pseudoscience with "real" science. Their teacher told them to make a chart c
KIM [24]

Answer:

b and e

Explanation:

i got it correct in usatestprep  :)

5 0
3 years ago
Why are viruses considered as peculiar microorganisms? <br><br><br><br><br> Plese answers
Aleksandr [31]

Answer:

Because they can only reproduce in a living cell

Explanation:

Virus is an organism that is incapable of replicating on its own without a living host. A virus infects a living host and makes use of Its replicational ability to produce new virions. A virus consists of a genetic material surrounded by a Protein called CAPSID. It does not possess the characteristics of other living organisms.

This means that it does not carry out any of the features a living cell undergoes e.g reproduction, respiration etc. Due to this reason, it is not classified as a living thing. They don't possess organnelles that carry out this peculiar functions.

A virus is considered a peculiar microorganism because it can only live and reproduce in a living host cell.

6 0
3 years ago
When one dna molecule is replicated to make two dna molecules, the new dna contains ____________
babunello [35]
D. 50% of the parent DNA
4 0
3 years ago
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