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nadya68 [22]
4 years ago
13

What happens immediately after RNA polymerase recognized and attaches to the promoter site on DNA?

Biology
1 answer:
gladu [14]4 years ago
6 0
Hello there.


RNA polymerase brings nucleotides to pair by RNA complementary base pairing.
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True or false? the spectrum of health care delivery refers to the various types of care.
Xelga [282]
Your answer is B. True
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3 years ago
Historically, the earth’s ocean had a ph of 8.2. In recent years it dropped to 8.1. How might this affect the ocean environment
Mrac [35]
Well with the ph above 7 that means the water is more of a base due to the salt within the water.  the decrease in the ph is due to gloabal warming and the melting of ice which is somewhat diluting the water more.  the wildlife within the ocean has been there since you or i so some creatures have developed a very specific habbitat and less salt withing the water could have effects on them.  one such instace is if the organism needs a lot of salt.  a decrease in salt would mean that their cells would bloat with water until they explode. this would obviously hurt the species as a whole and in turn effect the whole food chain.
7 0
4 years ago
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NAD and FAD work by loading and unloading _________ and _________ during energy transfers.
andrezito [222]

Answer:

Hydrogen and electrons

Explanation:

Nicotinamide adenine dinucleotide (NAD) and flavin adenine dinucleotide (FAD) serve as reducing power during energy transfers. One NAD+ accepts one hydrogen ions and two electrons and becomes reduced into NADH. Likewise, FAD accepts two hydrogen ions and two electrons and is reduced into FADH2. Oxidation of NADH and FADH2 into NAD+ and FAD respectively releases both hydrogen ions and electrons.  

For example, some of the energy of glucose released during glycolysis and Kreb's cycle is temporarily stored in the form of NADH and FADH2. Oxidation of NADH and FADH2 via electron transfer chain of mitochondria releases both electrons and hydrogen ions (protons). The protons are pumped across the inner mitochondrial membrane to generate the proton concentration gradient.  

7 0
3 years ago
What is the name for runaway plant growth because of excess nitrogen
shusha [124]

The correct answer is Eutrophication.

When a body of water become enriched with nutrients and minerals and induces growth of algae and plants is referred to as eutrophication.

The process of eutrophication can result to water body depletion.

When there is increase in nutrient levels there is increase in phytoplankton in the water body.

Discharge of nitrates which contain sewage, fertilizer, and detergents in aquatic system may induce the eutrophication.

6 0
4 years ago
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A microbiologist has identified a new gram-negative pathogen that causes liver disease in rats. She suspects that the bacterium’
valina [46]
<h2>Koch's postulates </h2>

Explanation:

Koch formulated a set of criteria that could be used to identify the pathogen responsible for a specific disease and these criteria came to be known as Koch’s postulates:

The organism must be regularly associated with the disease and its characteristic lesions

The organism must be isolated from the diseased host and grown in culture

The disease must be reproduced when a pure culture of the organism is introduced into a healthy, susceptible host

The same organism must be re-isolated from the experimentally infected host

In the given hypothesis , Koch's postulates could be used as:

1) identify pathogen associated with disease 2) isolate or purify pathogen 3) test subject gets pathogen 4) same disease/ causes liver disease or not

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