Giemsa staining of metaphase chromosomes results in a series of dark bands and light interbands. What is the basis for this difference in staining?
What will be an ideal response?
Ans: Darker staining G-bands have a lower G-C content than the unstained interbands. More genes tend to be found in interband regions.
Biology & Microbiology
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Activation of the ________ G-protein results in the extension of lamellipodia.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
The plant hormone ____ causes chloroplasts to mature
a. cytokinin b. salicylic acid c. abscisic acid d. ethylene e. gibberellin
Biology & Microbiology
In conifers, meiosis of diploid cells in an ovule produces ____.
A. microspores B. pollen sacs C. pollination droplets D. pollen grains E. megaspores
Biology & Microbiology
Folding of the 5' end of a mRNA, such that binding to the ribosome is altered, is most likely to affect
A. transcription. B. replication. C. translation. D. transformation.
Biology & Microbiology