There are five major types of histone proteins, but only four of them are considered as core histones. Which one of the following is NOT considered a core histone protein?

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#Question id: 18596

#Unit 11. Evolution and Behavior

First toothed birds appear in which geological time periods?

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#Question id: 18776

#Unit 13. Methods in Biology

In Western blotting, a protein mixture is separated by electrophoresis; then the protein bands are electrophoretically transferred onto nitrocellulose and identified with 

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#Question id: 19840

#Unit 13. Methods in Biology

Match the following source of thermostable DNA polymerase with proofreading (3’−5’ exonuclease) activity;

DNA Polymerase	Sources
A- Tma	i) Pyrococcus furiosus
B- Deep VentTM	ii) Pyrococcus woesi
C- Tli	iii)  Thermotoga maritima
D- Pfu	iv) Pyrococcus sp.
E- Pwo	v) Thermococcus litoralis

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#Question id: 5256

#Unit 8. Inheritance Biology

If the experimental population of E. coli lacks an F factor or F plasmid, and if bacteriophage are excluded from the bacterial cultures, then which of these is a means by which beneficial mutations might be transmitted horizontally to other E. coli cells?

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#Question id: 3051

#Unit 2. Cellular Organization

You have 10^10 cell/L of bacterial stock solution. To prepare 1 liter of growth medium containing 1000 bacteria, the volume in microlitre of this stock solution that should be added is