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juin [17]
2 years ago
13

Genetic information is stored in which cellular structure?

Biology
2 answers:
Anna007 [38]2 years ago
6 0
The answer is C) chromosome :)
Fittoniya [83]2 years ago
5 0
A. Cytoplasm

Explanation: the cytoplasm is where the nucleus is, and within the nucleus is DNA.
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Apple maggots are a type of fly native to North America. Prior to the introduction of the apple tree to North America, apple mag
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Answer:

B

Explanation:

B is the most likely consequence because of the following facts we are told:

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This provides a geographical isolation (because they are feeding and laying eggs on separate trees) and reproductive isolation (because they will only mate on the type of tree on which they are born).

These two factors increase the chances that apple maggots feeding on apple trees will only encounter those who have mated on the same tree, and continue to mate this way. Over time, the populations (i.e. apple tree vs hawthorn tree) will intermix less and less. This will mean the genetic pool will become distinct, and natural selection will be acting differently (different habitats and different genes), encouraging speciation.

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3 years ago
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2 years ago
How does the immune system function?
professor190 [17]

Answer:

Immune system of the body helps in fighting with the infectious agents that are foreign for the body. So the immune system protects us from infection.

When any foreign substance(antigen) comes in the body B-lymphocyte recognize it by binding the antigen through its receptor. After recognizing the antigen, B cell divides into antibody-producing plasma cell and memory cell.

Antibodies produced by plasma cells help in destroying the antigen by getting the antigen recognized by phagocytic cells or by complement activation.

B cells are antigen-presenting cell which present antigen to T cell and then T cell activates and produce chemicals that kill the antigen. Therefore the immune system has many immune cells that activate when an antigen comes in the body. This is how the immune system functions.

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