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gladu [14]
3 years ago
6

1. How much land in the United States is lost to urban sprawl every year?!

Biology
1 answer:
Veseljchak [2.6K]3 years ago
4 0
The total is now pegged at 11.2 million acres rather than almost 16 million, with yearly average losses of 2.2 million acres instead of 3.2 million.
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You are given a protein with the following amino acid sequence:
tigry1 [53]

Answer:

 d. Lysine is replaced by tryptophan (nonpolar)

Explanation:

Amino acid substitutions can have varying affects on the protein function, depending on the specific substitution and the location of the substitution.

If the substitution occurs in an important region, for example an enzyme active site, then the function of the protein could be destroyed.

Additionally, if the substitution replaces the amino acid with a highly different amino acid with different properties (eg. polarity), it could alter the structure and function of the protein.

Replacing lysine (polar) with a tryptophan (non-polar) changes the properties of the amino acid at that location, whereas the other substitutions do not.

4 0
3 years ago
If the offspring of a cross show a 9/16 to 3/16 to 3/16 to 1/16 ratio (9:3:3:1), the
Step2247 [10]

Answer:

it should be,

AaBb × AaBb

Explanation:

where,

RY(round, yellow) and ry( wrinkled,green) which gives RrYy( round, yellow)...which is also called 1st filial generation ( F1)...when Mendel self hybridised the F1 plants he differentiate the plant in 9: 3: 3: 1...which is F2 generation.

6 0
3 years ago
Which most directly describes a benefit of using DNA technology in medicine?
Ainat [17]

Answer:

The CORRECT answer is A) Medicine can be produced in mass quantities.

Explanation:

Right on edge :)

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6 0
3 years ago
Read 2 more answers
The Ebola virus enters a human through the openings in the body or through the skin itself. Once inside, the virus attaches to a
agasfer [191]
<h2>Answer: <u><em>How does the Ebola virus infect people?</em></u></h2>

<em><u>Ebola virus contains a type of genetic material called RNA, which is similar to DNA and contains the blueprint for assembling new virus particles.  Unlike animals and plants, which also use DNA as a repository of information, viruses are not technically alive because they are incapable of replicating without help.  In order to create new viruses, the virus must infiltrate a living cell, where it hijacks the host cell’s machinery to fulfill its own goals.  In order to get into the cell, Ebola must travel through the cell membrane, which is a barrier that protects the cell from its environment.  However, all cells need nutrients, which must have ways of entering the cell; the viruses hitch a ride into the cell via one of these established nutrient-uptake entryways.  Ebola virus takes advantage of a non-specific engulfing process called macropinocytosis, which allows the virus to be “eaten” by a wave-like motion of the cell membrane (Figure 1) [2].</u></em>

<em><u></u></em>

<em><u></u></em>

Explanation:

5 0
3 years ago
Select the correct sequence concerning glucose catabolism. glycolysis - pyruvate - acetyl - coa - electron transport chain - kre
Natali [406]
The correct sequence is; Glycolysis-pyruvate-acetyl CoA-krebs cycle-electron transport chain. 
Glycolysis is a sequence of reactions for the breakdown of glucose to two molecules of pyruvic acid under aerobic conditions, Krebs cycle is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and chemical energy in the energy carriers, while electron transport chain involves a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions and couples this transfer with the transfer of protons across a membrane. 
5 0
3 years ago
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