A special type of endoplasmic reticulum of muscle cells that involved in increasing the cytosolic Ca2+ concentration for skeletal muscle contraction ? 

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#Question id: 2837

#Unit 2. Cellular Organization

The C-terminal activation domain of transcriptional activators is capable of

a. binding to DNA.                 

b. stimulating transcription.

c. interaction with other transcriptional machinery.

d. functioning in a fusion with a DNA-binding domain from an unrelated transcriptional activator.

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#Question id: 23222

#Unit 2. Cellular Organization

Which ratio of bacteria is high compared to the same ratio for larger organisms of similar shape?

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#Question id: 33365

#Unit 1. Molecules and their Interaction Relevant to Biology

An antibody binds to an antigen with a Kd of 5 X10^-8 M. At what concentration of antigen will θ be 0.6

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#Question id: 34112

#Unit 2. Cellular Organization

A. When interphase nuclei are suspended in a solution of low ionic strength, they swell and rupture to release fibers of chromatin.

B. Individual nucleosomes can be obtained by treating chromatin with the endonuclease micrococcal nuclease

C. When chromatin is digested with MNase, the DNA is cleaved into integral multiples of a unit length can be Fractionated by gel electrophoresis reveals the “ladder”

D. With MNase more than 95% of nuclear DNA can be recovered in the form of the 200-bp ladder.

Choose true and false

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#Question id: 10901

#Unit 6. System Physiology – Plant

P-proteins have been characterized at the molecular level. P-proteins from the genus Cucurbita consist of two major proteins;