A growth curve plots the (concentration/number/percentage) of viable organisms in a growing population over time.
Fill in the blank(s) with the appropriate word(s).
number
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The first level of gene regulation occurs along the chromosome, through chemical modifications of the DNA or histones
A. true B. false
Which one of the following is a function of a protein?
A) stores genetic material and enables its transmission to the next generation B) acts as a catalyst, speeding up chemical reactions C) is a major subunit of cellulose D) is a primary structural component of a cell membrane E) provides energy for a muscle contraction
The accommodation of the very long DNA strands that are part of a chromosome into the limited space of the nucleus is achieved by coiling the DNA around beads of histones into repeating subunits. These DNA-wrapped histones are called
A. chromatin loops B. rosettes C. nucleosomes D. solenoids
Given the B cell's role in the adaptive immune response, it is reasonable to assume that a B cell will have:
A. a large number of pseudopods. B. extensive rough endoplasmic reticulum. C. an enlarged nucleus. D. All of the answer options are correct.