A dysfunctional cell lacks a signal peptidase and is unable to cleave the ER signal sequence from proteins translated in the ER. What will be the effect on the cell's proteins?
A. The cell will have no integral membrane proteins
B. All cellular proteins will have an ER signal sequence
C. There will be a common signal sequence at the N-terminus of all integral membrane proteins in the plasma membrane
D. All cellular proteins will become membrane proteins
E. There will be a common signal sequence at the C-terminus of all integral membrane proteins in the nuclear envelope
C. There will be a common signal sequence at the N-terminus of all integral membrane proteins in the plasma membrane
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Purple flower (A) is dominant over white flower (a), and tall stem (B) is dominant over short stem (b). The Punnett square
represents a cross between two dihybrids (AaBb ? AaBb). In the figure above, how many plants would have white flowers and short stems?
a. 1b. 3 c. 5 d. 9 e. 16
Recent data indicate what regarding forests in eastern North America?
A) a steady increase in forest since the late 1800s B) no change over the past 200 years C) no change in the past 50 years D) a decline in forested area in the past 50 years
Sharks belong to this kingdom
A) cartilagenous B) animalia C) chondrichthyes D) sharkilia
A group of medications that induce stimulation of the central nervous system are _______________.
Fill in the blank(s) with the appropriate word(s).