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Art [367]
3 years ago
14

A dna sample is electrophoresed on an agarose gel and stained with ethidium bromide. several dna fragments are observed and are

estimated to be 2500bp, 1500bp, 750bp, 550bp, and 225bp in length. which dna fragment will be closest to the top of the gel? 550bp 1500bp 225bp 2500bp
Biology
1 answer:
denpristay [2]3 years ago
6 0
Quizlet is a good site that can help 

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I have a few questions I'm having trouble with, maybe if you guys could please help me out, thank yoo~! ^w^
Sauron [17]

1)

2)Keep more fruits, low-fat dairy products (low-fat milk and low-fat yogurt), vegetables, and whole-grain foods at home and at work. Focus on adding healthy food to your diet, rather than just taking unhealthy foods away. Try to eat a family meal every day at the kitchen or dining table.

3)Biomacromolecules are large biological polymers, such as nucleic acids, proteins and carbohydrates, that are made up of monomers linked together. For example, proteins are composed of monomers called amino acids.

4)The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes are therefore subject to the principle of conservation of energy. This means that heat energy cannot be created or destroyed

5)Cellular metabolism is the set of chemical reactions that occur in living organisms in order to maintain life. Cellular metabolism involves complex sequences of controlled biochemical reactions, better known as metabolic pathways.

6)Sugars, such as galactose, fructose, and glycogen, are catabolized into new products in order to enter the glycolytic pathway.

8 0
3 years ago
Photosynthesis and cellular respiration, look at the picture
Anika [276]

Mike discovered that the  product of cellular respiration are the raw materials  of Photosynthesis while the products of photosynthesis  served as the raw materials for cellular respiration.

He also discovered that respiration is a catabolic process while photosynthesis is an anabolic process.

Another interesting fact seen by Mike is, the respiration releases energy while photosynthesis takes in energy.

Explanation:

  • In the equation of cellular respiration , we can see that glucose and oxygen are utilized in the mitochondrion to produce  carbon dioxide , water and chemical energy in the form of ATP.
  • Glucose breaks down during cellular respiration .
  • Again if we look at the chemical equation for photosynthesis in the chloroplast, we find that Carbon dioxide,which was produced during respiration is utilized along with water in presence of light energy to give out oxygen and Sugar (glucose)

8 0
3 years ago
Example
chubhunter [2.5K]

Answer:

71

Explanation:

3 0
3 years ago
You have arrived on the scene of an incident involving an explosion. People in the immediate vicinity are all experiencing runny
Sergio [31]

Answer:

Nerve agent

Explanation:

A nerve agent is a chemical in which on exposure to humans affects the functioning of the nervous system. These chemicals are known to disrupt the process by which messages are transferred to the organs from the nerve. This disruption occurs by blocking the activity of acetylcholinesterase, which is responsible for the catabolism of a neurotransmitter, acetylcholine.  

On exposure to a nerve agent, the muscles of the body become paralyzed and early symptoms is production of excess mucous such as in runny nose, pupil constriction and also difficulty in breathing.

These agents are sometimes used in chemical warfare. Examples include sarin, tabun etc.

7 0
3 years ago
Some people use paint to protect the outside of their houses. Why does a house painted a dark color get hotter than a house pain
Trava [24]

Answer:

Dark color absorb more photons and thus gets more hot

Explanation:

Dark color is dark b/c it absorbs different wavelengths of light (think about little photons of light vibrating slighting differently) .This means it absorbs a lot of photons which makes it warmer.

If a thing is white, that means it reflects all lights and absorbs none. Thus, since it does not absorb photons (little packets of energy which is light), the house does not get warm.

3 0
2 years ago
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