All of the following statements about the individuals in a population are TRUE except which one?
A. They belong to the same species.
B. They contain identical genes.
C. They belong to the same gene pool.
D. They live in the same geographic area.
B. They contain identical genes.
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You are working in a research lab on the organism Drosophila melanogaster and you have been given
the job of determining the relative positions of three linked genes for your undergraduate research project. A graduate student in the lab tells you that gene a is 5.0 centimorgans from gene b, and that gene c is 2.7 centimorgans from gene b. What should you do to finish mapping these three genes? What are the likely results that may occur, and how would you interpret such results?
What will be an ideal response?Which group of algae seems to straddle the boundary between algae and protozoans?
A) Euglenozoa B) Rhodophyceae C) Alveolata
Which microscope does not use light in forming the specimen image?
A. phase-contrast B. fluorescence C. dark-field D. bright-field E. electron
We know the detailed molecular structure and mechanism of action of the transmembrane protein bacteriorhodopsin. This protein uses sunlight as the source of energy to pump ______ out of the cell
(a) ATP (b) H+ (c) K+ (d) Na+