A eukaryotic cell that receives a “go-ahead” signal at the G1 checkpoint of the cell cycle will ()
A. enter a resting stage
B. move directly into the M phase
C. move directly into the G2 phase
D. complete the cycle and divide
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A cell has 4 chromosomes. After mitotic cell division the number of chromosomes in the daughter cell would be __________. ()
A. 8
B. 4
C. 16
D. 32
The predominant components of the lipid bilayer in biomembranes are ()
A. Lipoproteins
B. Glycolipids
C. Phospholipids
D. Glycerols
Which cellular component can NOT be seen with the light compound microscope? ()
A. DNA
B. cell wall
C. nucleus
D. cytoplasm
Which of these organelles is NOT associated with the production of proteins in a cell?()
A. Ribosomes
B. .Smooth endoplasmic reticulum (SER)
C. .Rough endoplasmic reticulum (RER)
D. .Golgi apparatus