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Sever21 [200]
3 years ago
7

Macrophage cells undergo a process called phagocytosis in which material is brought into a cell in the form of membrane vesicles

and then transported along microtubules toward the cell center. Assuming that the centrosome is near the cell center, you can predict that these vesicles are moving to the _____ end of microtubules using the motor protein _____.
Biology
1 answer:
krek1111 [17]3 years ago
3 0

Answer:

The options

A. minus end; dynein

B. plus end; kinesin

C. minus end; kinesin

D. plus end; dynein

The correct answer is A.

A. minus end; dynein

Explanation:

Microtubules are well known as cytoskeletal fibers which plays a major part in the intracellular transport (transportation of vesicles inside the cell) and at the mitotic spindle in the course of mitosis.

The plus end of the microtubules goes via the outer edge or boundary of the cells which is not the same for the MINUS ENDS as they upheld within the centrosome.

Major proteins that aid vesicle’s movement are motor proteins:

• kinesin: is positive end coordinated

•  DYNEIN: is negative end directed

We can see that aside vesicles, these group of proteins plays a part too in organelles’ transportation going in opposite directions via the cytoplasm.

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harkovskaia [24]

Answer:

Archaea domain is closer to eukarya than bacteria because genetically they are more similar to Eukarya than Bacteria.

Explanation:

Options for this question are:

  • <em>They both lack a nucleus and contain  cytoplasm. </em>
  • <em>The unique functional adaptations of Archaea are more similar to Eukarya adaptations.  </em>
  • <em> They both evolved in the same geological time period. </em>
  • <em> </em><em>Genetically, the Archaea are more similar to Eukarya than Bacteria. </em>
  • <em> They both have membrane-bound organelles. </em>
  • <em> Archaea is not closer to Eukarya because it contains prokaryotic cells just like Bacteria.</em>

Archaea are unicellular prokaryotic organisms, which share many characteristics with bacteria, however, the existence of metabolic functions and genes similar to eukaryotic organisms suggest that there is a genetic link between the two. Even the enzymes responsible for genetic processing, such as transcriptases and translation enzymes, are similar to those in eukaryotic cells.

The theory that establishes the relationship between Archaea and Eukaryotic suggests the existence of a common ancestor, whose later evolution allowed an Archaea to join a protobacteria to form a eukaryotic cell, and hence their genetic relationship.

Learn more:

Three domains brainly.com/question/330218

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A young mother of a 4 year old child expresses concern regarding the milk her child is drinking. The family purchases milk with
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Since the child 4 years old WIC milk is better, it is highly nutritious, though cow milk may not has side effect on the child because at that age cholesterol cannot affect the child but help in brain development

Explanation:

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4. If one individual is Tt and another individual is tt, which of the following is true?
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Tt is a genotype different than tt. The first one has two different alleles (T and t) the second one has one kind of alleles (t).

The fenotype of Tt is given by the dominant character (which is the capitalized one, T) while the fenotype of tt is t (because it is the only one).

Then, there are two different genotypes and two differente phenotypes.

Answer: The two have different genotypes and different phenotypes.

 
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