List the sequence of organelles a protein would pass through as it moves through the endomembrane system to the exterior of the cell
What will be an ideal response?
(1 ) The protein is made on ribosomes associated with the rough endoplasmic reticulum, (2 ) its transport vesicles bring it to the Golgi complex, (3 ) it moves through the Golgi complex then is packaged into another transport vesicle, (4 ) it is then brought to the plasma membrane where the vesicle fuses with the membrane, and (5 ) it is released to the exterior of the cell.
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What region in eukaryotic genes usually contains the majority of regulatory elements?
A. 0 to 50 B. -50 to 0 C. -50 to -100 D. -100 to -150
Polycomb group (PcG) mutants cause gain-of-function of Antennapedia (Antp) and other homeotic genes by causing some of these genes to be expressed in tissues where they are usually repressed. PcG has a domain that binds to methylated histone H3
This finding supports which of the following hypotheses? A) that PcG binds to Antp genes and serves as a transcription activator B) that PcG mutants have phenotypes like those of Antp mutants C) that PcG regulates genes by altering chromatin remodeling D) that PcG initiates repression of Antp genes in tissues E) that PcG is a repressor molecule like those found in bacteria
Is it possible for a man to be sterile and still produce semen? Explain
What will be an ideal response?
Which of the following tends to predominate in land ecosystems?
A. Grazing food web B. Primary production C. Food web D. Detrital food webs E. Biomass pyramid