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#Question id: 1973


Clonal selection is an explanation for how

#Section 2: General Biology
  1. a single type of stem cell can produce both red blood cells and white blood cells.

  2. V, J, and C gene segments are rearranged.

  3. an antigen can provoke production of high levels of specific antibodies.

  4. HIV can disrupt the immune system.


Answer:- Option(s): 3


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TLS Online TPP Program

#Question id: 3027

#Section 2: General Biology

Which of the following contains a copy of the chromosome, along with a small amount of dehydrated cytoplasm, within a tough wall?

TLS Online TPP Program

#Question id: 3028

#Section 2: General Biology

Endospores can be stained with

TLS Online TPP Program

#Question id: 3029

#Section 2: General Biology

Which of the following obtain energy by oxidizing inorganic substances; energy that is used, in part, to fix CO2?

TLS Online TPP Program

#Question id: 3030

#Section 2: General Biology

Which of the following features of prokaryotic biology involves metabolic cooperation among cells?

TLS Online TPP Program

#Question id: 3031

#Section 2: General Biology

In the growth equation: n = 3.3 (log10 N – log10 No), n stands for

TLS Online TPP Program

#Question id: 3032

#Section 2: General Biology

Which of these statements about prokaryotes is correct?

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