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miv72 [106K]
3 years ago
8

Opposite charges (-, +) ____________and like charges (+, +) ___________.

Biology
2 answers:
nordsb [41]3 years ago
4 0

Answer:

:P

Explanation:

>:V

xxMikexx [17]3 years ago
4 0

Answer:

repel, attract or its neutralize, repel

Explanation:

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In sanger sequencing, what causes dna synthesis to terminate at a specific base?.
borishaifa [10]

Answer: nucleotide triphosphates that lack a hydroxyl

Explanation:

3 0
2 years ago
A phycologist is interested in testing the claim that the proportion of algae from a local rivulet that belonged to the particul
Shkiper50 [21]

Answer:

The test statistic for this hypothesis test is - 3.68.

Explanation:

A test statistic is a random variable that is calculated from sample data and used in a hypothesis test. You can use test statistics to determine whether to reject the null hypothesis. The test statistic compares your data with what is expected under the null hypothesis.

Sample proportion = 38/50

= 0.76

Hence,

Test statistic

= \frac{0.76-0.50}{\sqrt{0.50*0.50/50}}

= 3.68

4 0
3 years ago
Which of the following is the correct sequence of blood flow in birds and mammals? a. pulmonary vein → left atrium → left ventri
ladessa [460]
The correct answer is C. The right side of the heart delivers deoxygenated blood (from vena cava) to the lungs (via pulmonary artery)
7 0
3 years ago
One method for separating polypeptides makes use of their different solubilities. The solubility of large polypeptides in water
Naddika [18.5K]

Answer:

The solubility of any substance in water depends on its polarity. The polar molecule dissolves more easily in the water than the non polar molecule. Amino acids have different polarity at different pH.

(a) (Lys-Ala)3 : The (Lys-Ala)3 contain more positive charge and highly polar the at pH 7 as compared with the  (Gly)20 that remains uncharged and has less polarity.

(b) (Glu)20 :This amino acids negatively charged at pH 7 and highly polar than the (Phe-Met)3 which is non polar or less polar and hence least soluble  in water.

(c) (Asn-Ser-His)5 is highly polar at pH 3 as compared with the (Ala-Asp-Gly)5 that contains the carboxylate groups of Asp residues that are partially neutral. The  (Asn-Ser-His)5 contains = the imidazole groups of His residues are fully polar and soluble in water.

(d) (Asn-Ser-His)5 is polar at pH 6.0 because both have polar side chains Ser but (Asn-Ser-His)5 is only partially partially protonated due to the His side chains. Thus,  (Asn-Ser-His)5 is more soluble in water.

6 0
3 years ago
Why is it difficult to avoid a tsunami?
Gelneren [198K]

Answer:

It is difficult to avoid a tsunami due to it being such a large volume of water that is capable of destroying a large amount of land.

Explanation:

However, even though it is difficult to avoid a tsunami, as they are extremely difficult to predict, there are ways where one can begin to prepare before it hits. One of the ways you can do this is getting to a higher ground far away from inland, avoiding downed power lines, and steering clear of buildings or bridges where large, heavy objects could fall during an aftershock.

Tsunamis are incredibly dangerous, since there is a great chance that if you get caught in one, you can drown. Since tsunamis have little to no warning when they arrive, it is always essential to be prepared when one strikes.

I hope this helped! :)

7 0
3 years ago
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