Compare and contrast the characteristics of prokaryotic and eukaryotic cells
What will be an ideal response?
Prokaryotic cells have a nucleoid, a region within the cytoplasm where the DNA is found, but this region is not surrounded by a membrane. Eukaryotic cells, however, have a true nucleus that is surrounded by a nuclear membrane. Additionally, eukaryotic cells have a variety of membranous compartments known as organelles within the cell, whereas prokaryotes do not have membranous organelles. Prokaryotic cells tend to be smaller and less structurally complex in general than eukaryotic cells. Even though the two types of cells may have various structures in common, such as cell walls and flagella, these structures can vary widely in their molecular composition.
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A genomic ________ is a sufficiently large collection of recombinant DNA molecules in which the inserted sequences together represent the entire genome of an organism.
Fill in the blank(s) with the appropriate word(s).
Both glycolysis and the pentose phosphate pathway oxidize glucose to pyruvate
Indicate whether this statement is true or false.
Prior to the S phase of the cell cycle, a cell passes through a regulatory checkpoint. If
mutations are detected in the cell, the __________ will initiate cell death.
a. tumor suppressor genes b. oncogenes c. DNA repair genes d. metastatic cells
An __________ species is one that is especially sensitive to environmental change and can be
monitored to determine the health of an ecosystem. Fill in the blank(s) with the appropriate word(s).