Eukaryotic genes consist of protein-coding sequences and adjacent regulatory sequences
Indicate whether the statement is true or false.
T
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The polytene chromosomes of Drosophila are an example of _________
A. aneuploidy B. polyploidy C. translocations D. inversion loops E. None of the answers are correct
The term genome was first used by
A) H. Winkler in 1920. B) Francis Crick in 1962. C) Francis Collins in 1992. D) J. Craig Venter in 1990.
When macrophages bind antigens, they secrete ____ to attract more phagocytic cells
a. more antigens b. MHC c. cytokines d. antibodies e. complement
Using powerful new sequencing technologies, investigators can now catalog every RNA molecule made by a cell and determine at what quantities these RNAs are present. In an experiment, researchers measured the relative quantities of two different mRNAs—one transcribed from gene A, the other from gene B—in two different cell types. Gene B is expressed in both the liver and the brain whereas gene A is expressed in the brain but not in the liver. Which most likely encodes a housekeeping protein?
A. gene B only B. gene A only C. both genes D. neither gene