What is a silencer?
What will be an ideal response?
Ans: A silencer is a regulatory region that binds more negative regulators of transcription than positive regulators.
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Which feature, if changed, would NOT abolish M13's utility as a cloning vector?
A) ssDNA genome becoming a dsDNA genome B) loss of genes that make coat proteins C) replacing the segment of non-coding DNA in its genome with an indispensible gene D) switch from lysogenic to lytic lifestyle
Match each insect order with the correct representative insects.
1. Diptera 2. Hymenoptera 3. Coleoptera 4. Hemiptera a. beetles b. flies c. true bugs d. ants, bees, wasps
What primary structures package cellular secretions for export from the cell?
a. Golgi bodies b. ribosomes c. mitochondria d. lysosomes e. endoplasmic reticula
A symporter is moving glucose and sodium levels are being depleted in extracellular fluids. What can be concluded about the movement of glucose? Choose all that apply.A) Glucose would be moving against its gradient into the cell.B) Glucose follows the gradient of sodium into the cell.C) Glucose would be moving with its gradient into the cell.D) ATP is not required to move sodium down its concentration gradient.E) Energy is needed to move glucose down its concentration gradient.F) Glucose's movement would still be considered diffusion.G) Glucose's movement is considered a part of coupled transport.
What will be an ideal response?