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dimaraw [331]
3 years ago
15

[[ LAST QUESTION FOR MY EXAM !!! ]]

Biology
2 answers:
Rashid [163]3 years ago
6 0
A.) sexual phenotypic traits
Marta_Voda [28]3 years ago
4 0

Answer:

b) extreme

Explanation:

Disruptive Selection:

  • Disruptive or diversifying selection is a form of natural selection that favors phenotypes on the extreme ends of the trait/characteristic spectrum over intermediate phenotypes.
  • This occurs in environments where two extreme traits are the fittest to survive and successfully produce offspring.
  • London's peppered moths are one of the most prominent examples of disruptive selection. The rural environment favored moths with lighter colour but the darker coloured moths were easily spotted by predators.
  • On the other hand, industrial areas favored darker coloured moths as they could easily camouflage in the polluted surroundings. Here, the lighter moths were the ones to be easily spotted by predators.
  • However, moths of intermediate shades were easily spotted in both environments as they couldn't camouflage easily.
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Verdich [7]

Answer:

B. Graduated cylinder

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3 years ago
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Single nucleotide polymorphisms (SNPs) are useful in epidemiology because:
Snezhnost [94]

Answer:

b. Their presence is evidence of a defect in DNA replication, and therefore proof that a given disease is present

Explanation:

Single nucleotide polymorphisms (SNPs) result from point mutations and correspond to the position where there is alternation of nucleotides A, C, G, T at a minimum allele frequency of 1% in a given population. SNPs can be present in both coding and non-coding regions of the genome. As a nucleotide alternation is the result of a defect in DNA replication and these defects cause syndromes and diseases; we can say that single nucleotide polymorphisms are evidence of a defect in DNA replication and therefore proof that a particular disease is present.

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4 years ago
In which situation would new technology be most likely to cause a change in an existing theory about new structures in a cell?
Jlenok [28]

Hey there! Your answer would be:

The new technology allows detection of a structure that could not be detected previously.

I hope this helps!

7 0
3 years ago
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Which is the best explanation for a convection current in the atmosphere?
mylen [45]

Answer:

hot air expands and rises to the top of the atmosphere, while the cool air stays

8 0
2 years ago
Electrons are charged particles. Moving charged particles are a current. There is a current of electrons flowing through a coppe
AfilCa [17]

I think it is B.

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