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Pani-rosa [81]
3 years ago
5

17. Which of the following is comprised primarily of fatty acids and other single tailed amphiphiles? A) lipid bilayers B) two-d

imensional membranes C) liposomes D) micelles E) solvent-filled vesicles
Biology
1 answer:
eduard3 years ago
3 0

Answer: A) lipid bilayers

Explanation: The lipid bilayer is made up of fatty acids and amphiphilic phospholipids (hydrophilic phosphate head and a hydrophobic tail).

The lipid bilayer controls molecules, ions that goes in and out of the cell.

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The color of a horse’s coat is determined by its
tamaranim1 [39]

The correct answer is (A) Chromosomes.

The color of the horse coat is determined by chromosomes. The genes present on the chromosomes is responsible for the coat color of horse. The dominant coat color of the horse is transferred to the horse from its parents.  This is inherited pattern and the coat color can be black, white, brown, etc.

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3 years ago
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He light colored rock pocket mice in New Mexico blend in with the sandy soil of the area, but on darker lava flow, the light col
fiasKO [112]

<u>Answer</u>: option B they have a random gene mutation that affects their fur colour.

<u>Explanation</u> :-

  • <em>Variation</em> is the phenomena which occurs in all populations.
  • These variations result in slight differences in the phenotypes of individuals .
  • These variations only arise due to <em>random mutations </em>that arise in the individuals’ genome and then can be inherited by their offspring.
  • There is always a probability of one particular trait to make the individuals survive better in the environment as compared to other trait.
  • The individuals having the trait that helps them to survive better in the environment tend to survive more and leave more progeny. This is termed as <em>survival of the fittest</em>.
  • Thus, according to the question it can be inferred that the dark fur colour arose due to a <em>random mutation </em>since it is the only source of variation. Since, in the given environmental conditions the mice having the dark fur colour were less susceptible to the predators they are better fitted to survive.
  • The dark brown fur coat mice, survive better, leave more progeny and hence, increase their population with time. However, the orginal source of origin of this trait was a random mutation. Had this mutation not occured, the dark coloured fur mice would not have been there.

So, a <em>random gene mutation affecting the fur colour made the dark coloured mice first appear in the population.</em>

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Capsid

Explanation:

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The plate Hawaiian islands are a part of are the Pacific plates.
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I need help with dis plz?
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