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TLS Online TPP Program

#Question id: 27249

DNA tertiary structure, what is a histone octamer?

#XL - T Zoology

  1. A complex consisting of eight positively charged histone proteins (two of each H2A, H2B, H3 and H4) that aid in the packaging of DNA

  2. A complex consisting of eight negatively charged histone proteins (two of each H2A, H2B, H3 and H4) that aid in the packaging of DNA
  3. A complex consisting of nine positively charged histone proteins (H1 and two of each H2A, H2B, H3 and H4) that aid in the packaging of DNA.

  4. A complex consisting of nine negatively charged histone proteins (H1 and two of each H2A, H2B, H3 and H4) that aid in the packaging of DNA.

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TLS Online TPP Program

#Question id: 8922

#XL - S Microbiology

Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships?
TLS Online TPP Program

#Question id: 1754

#XL - Q Biochemistry

High affinity B-cell clones in mammals are usually generated by:
TLS Online TPP Program

#Question id: 15681

#XL - S Microbiology

 Moist heat kills microorganisms by
TLS Online TPP Program

#Question id: 2999

#XL - S Microbiology

Agar is superior to gelatin as a solidifying agent because agar
TLS Online TPP Program

#Question id: 3453

#XL - T Zoology

The degree of genetic relatedness between the offspring and their parents is