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TLS Online TPP Program

#Question id: 2750

Which of the following is true of histones?

#Unit 2. Cellular Organization

  1. Histones are acidic proteins.

  2. Histones are found in animal chromatin but in not plant cells.

  3. The amino acid sequences of histone proteins are very similar in different organisms.

  4. All histones form part of the nucleosome core particles in chromatin.

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TLS Online TPP Program

#Question id: 5768

#Unit 8. Inheritance Biology

Exposure to gamma radiation leads to severe damage to DNA.  The bacterium Deinococcus radiodurans is able to survive exposure to levels of gamma radiation that would kill any other known organism.  This organism is able to survive because
TLS Online TPP Program

#Question id: 7133

#Unit 5. Developmental Biology

In what way are mrf4, myoD, and the other muscle-inducing genes similar to the homeotic genes of Drosophila?
TLS Online TPP Program

#Question id: 28852

#Unit 2. Cellular Organization

Which of the following proteins are End-Binding Proteins?
a) XMAP215
b) Op18
c) Kinesin-13
d) stathmin
TLS Online TPP Program

#Question id: 4724

#Unit 8. Inheritance Biology

Which of the following are true about crossing over ?
TLS Online TPP Program

#Question id: 1706

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is the best example of a primary lymphoid organ?