System of membranous saccules and channels in the cytoplasm, often with attached ribosomes.
What will be an ideal response?
endoplasmic reticulum (ER)
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What type of interaction is directly responsible for the formation of secondary structure?
A) peptide bonds between adjacent amino acids B) peptide bonds between nonadjacent amino acids C) hydrogen bonds between sections of the polypeptide backbone D) hydrogen bonds between side chains of amino acids
Bacteria from the genus Caulobacter are used to model cellular differentiation in eukaryotes. The abundance of CtrA, DnaA, and GcrA separately control activity of other genes necessary for differentiation in Caulobacter
Thus, these three proteins can be classified as A) activating sensors. B) heterologous regulators. C) differentiating regulons. D) transcriptional regulators.
Answer the following statements true (T) or false (F)
1. The modification of a limb that was used for walking in a pre-existing ancestor to one that is used as a wing for a species today is called proteomics. 2. A bacterial infection such as pneumonia is most likely caused by organisms derived from the animal kingdom. 3. All genetic mutations are harmful to an organism. 4. Vertical evolution, whereby living organisms evolve from a common ancestor ("tree of life"), is the only mechanism of evolution on Earth.
The energy that drives the light-independent reactions comes from ____
a. sunlight b. glucose c. carbon dioxide d. ATP and NADPH e. water and oxygen