The histone tails are required for chromatin to condense from the beads-on- a-string conformation into the 30-nm fiber. Recent experiments indicate that the N-terminal tails of histone H4, particularly_____________, are critical for forming the 30-nm fiber.

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#Question id: 1581

#Bio-Informatics

An otherwise healthy student in your class is infected with EBV, the virus that causes infectious mononucleosis. The same student had already been infected when she was a child, and she had merely experienced a mild sore throat and swollen lymph nodes in her neck. This time, though infected, she does not get sick. 

Her immune systemʹs recognition of this infection will involve which of the following?

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#Question id: 1582

#Bio-Informatics

The EBV antigen fragments will be presented by the virus-infected cells along with which of the following?

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#Question id: 19448

#Bio-Informatics

Which of the following incident lights will give better resolution of a specimen?

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#Question id: 12739

#Bio-Informatics

Method used for gene editing and for the development in Gene modifications is known as_______.

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#Question id: 12911

#Bio-Informatics

Match the following:

A. DNA polymerases              i. Alkaline phosphatase        a.RNA-dependent DNA polymerase, used in cDNA synthesis

B. Reverse transcriptase        ii. T4 DNA ligase                    b. Thermostable DNA polymerase used in PCR

C. Ligases                                 iii.  AMV-RT                            c. Removes 5′-phosphates from DNA and RNA

D. Phosphatases                     iv. Taq DNA pol                      d. Links 5′-phosphate and 3′-hydroxyl ends via phosphodiester bond

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#Question id: 12912

#Bio-Informatics

Name the enzyme which separates the double-helical DNA into single strands.