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aniked [119]
3 years ago
11

The rock cycle is driven primarily by water movement and

Biology
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:it’s B

Explanation:

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Flowers are the <span>plant structure that is the dominant sporophyte of angiosperms.</span>
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3 years ago
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Which of the following statements best provides evidence of the big bang theory?
Oxana [17]

Answer: D. Galaxies show a red shift, indicating they are moving away from each other.

Explanation:

Galaxies seem to show a red shift which indicates that the galaxies are moving away from each other. This provides evidence for the Big Bang theory because the theory posits galaxies will keep moving away from each other.

This is because when an explosion happens, matter moves away from the point where the explosion happened. If the Big Bang happened therefore, galaxies will move away from the source which is why galaxies are moving away from each other.

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How are conditions of pressure and temperature, at which two phases coexist in equilibrium, shown on a phase diagram?
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On the phase diagram, conditions of pressure and temperature, at which two phases coexist in equilibrium are separated by a line.
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What is the best explanation if the gel of your PCR product shows smeared bands of multiple sizes? Select one:
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Answer:

e. None of the above

Explanation:

For me as a Researcher, the reason could be increased Concentration of your DNA sample which you are using as your template. Try to decrease the concentration of DNA (up to 100 ng per reaction is enough and can increase up to 200 ng). so the reason for getting non specific bands is increase concentration of DNA  which results in non specific amplification and also degradation of DNA in the reaction which you can see in your gel electrophoresis results.  

i always corrected my results using the same technique that is lowering the concentration of DNA between 100 and 200 ng per single reaction of PCR.

8 0
3 years ago
The genetics of a-thalassemia are similar to narrow sense heritability in that there is a gradation of phenotype, with each alle
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Answer:

In strict mode, the narrow-sense heritability is the proportion of the additive genetic variance that contributes to the total of the phenotypic variance. This value can be associated with the inheritance of the a-thalassemia .

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A-thalassemia is a genetic disorder caused by mutations affecting four different genes that encode alpha-globin, thus affecting the hemoglobin production process and, consequently, oxygen transport. The mode of inheritance of the a-thalassemia may be associated with narrow sense heritability since the phenotype is manifested by gradation, i.e., each allele might contribute in similar mode to this genetic condition.

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