The injection of tuberculin into the skin of a sensitized individual elicits:

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#Question id: 3670

#Section 3: Genetics, Cellular and Molecular Biology

The best-known examples of host-encoded site-specific recombination systems used to resolve plasmid dimers are the cer-XerCD site-specific recombination systems used by the

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#Question id: 1638

#Section 2: General Biology

Intracellular parasites within macrophages are killed more readily in the presence of:

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#Question id: 18837

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which of the following statement is correct about comparative method of RNA secondary structure prediction?

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#Question id: 13123

#Section 3: Genetics, Cellular and Molecular Biology

Match the correct one?

A- COPI                           i- vesicles transport proteins from the ER to the Golgi.

B- COPII                          ii- vesicles mainly transport proteins in the retrograde direction between Golgi cisternae and from the cis -Golgi back to the ER.

C- Clathrin                      iii- vesicles transport proteins from the plasma membrane (cell  surface) and the trans-Golgi network to late endosomes.

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#Question id: 3275

#Section 3: Genetics, Cellular and Molecular Biology

When imbalances occur in the sex ratio of sexual species that have two sexes (that is, other than a 50:50 ratio), the members of the minority sex often receive a greater proportion of care and resources from parents than do the offspring of the majority sex. This is most clearly an example of ________.