Question
1.What factor determines the distinctions between the two types of blood cells in the micrograph?
A. Different number of mitotic cycles
B. Different expression of some genes
C. Reaction to oxygen of red blood cells
D. Reaction to antigens of white blood cells
Answer/Explanation
Ans : B
Question
2.Which of the following statements correctly distinguishes between eukaryotic and prokaryotic cells?
A. Presence of cell walls is exclusive to prokaryotes.
B. Naked DNA associated with histones is exclusive to prokaryotes.
C. Compartmentalization is exclusive to eukaryotes.
D. Cilia and flagella are exclusive to prokaryotes.
Answer/Explanation
Ans : C
Question
3.What would occur to Onion (Allium cepa) epidermal cells if transferred to a hypertonic solution?
A. Cells would gain mass.
B. Cells would take in water by osmosis and swell.
C. Cells would burst open, releasing their content.
D. Cell membranes would detach from walls at some points.
Answer/Explanation
Ans : D
Question
4.Which of the following provides evidence for the endosymbiotic theory in eukaryotic cells?
A. Presence of mitochondrion with DNA
B. Presence of Golgi complex in the cytoplasm
C. Presence of a single nuclear membrane
D. Presence of ribosomes in the cytoplasm
Answer/Explanation
Ans : A