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18. Proteins in the cytosol that are destined for other organelles must first enter the:a. nucleusb. Golgi apparatusc. Endoplasmic reticulumd. Lysosomes19. Which of the following is true?a. a special class of ribosomes embedded in the ER translates the proteins destined for that organelleb. a common pool of ribosomes is used to synthesize both proteins that stay in the cytosol and those that are destined for the ERc. all ribosomes are attached to the ER when they are synthesizing a protein20. Which type of protein binds to improperly folded or improperly assembled proteins in the ER, holding them there until proper folding occurs?a. tethering proteinsb. glycosylating proteinsc. chaperone proteinsd. antibody proteins21. Which of the following is NOT true about the differences between liver cells and kidney cells in the same organism?a. they contain the same genes, but express them differentlyb. they contain different genesc. they contain different sets of proteinsd. 22. The correct order of the "flow of information" to generate a protein is:a. mRNA to DNA to proteinb. DNA to mRNA to proteinc. Lipid to mRNA to protein23. In a eukaryotic cell, almost all _________________ occurs in the nucleus and __________________ occurs mainly at ribosomes in the cytoplasm. Fill in the blanks by picking from the following terms:a. translationb. transcription24. A stop-transfer sequence functions to:a. block transfer of a hydrophobic amino acid sequence into the lumen of the endoplasmic reticulumb. prevent ribosomes from binding to the rough endoplasmic reticulumc. signal the termination of mRNA25. A highly expressed gene is more likely to be found in a(n)________________ region of the chromosome.a. Heterochromaticb. Euchromatic26. The ___________ directs the ribosome with the attached mRNA and nascent polypeptide to the endoplasmic reticulum membrane.a. tRNAb. signal peptidasec. SRPd. SRP receptor27. Which is NOT an example of epigenetic inheritance?a. the inheritance of methylation patterns in DNAb. the inheritance of a single nucleotide mutation in a genec. the inheritance of patterns of chromosome condensation
Many health problems (e.g., heart disease, high cholesterol, Type II diabetes, etc.) may be induced, in part, by an individual's lifestyle. Many of these conditions are treated with medication, although most of these conditions may be effectively ..
Transformation, conjugation, and transduction were discovered in the laboratory. How important are these mechanisms of genetic recombination in nature.how is electrophoresis used in criminal forensics.
To increase the awareness of monitoring and recording the blood pressure of patients and practice measuring blood pressure in a safe environment.
A protein is a trimer, which you suspect may exhibit cooperative binding. Every monomer contains a single binding site for the ligand, A. To investigate this you get the this data shown with total=20uM.
E valuate primary and secondary succession. Explain each type of succession thoroughly and give specific examples of everytype.
List in order the higher taxons used in classification (domain, kingdom, phylum, genus, species) List the 3 domains and how they differ. Describe uses and effects of microbes for man.
Madagascar, Indonesia and the Amazon basin have some of the greatest numbers of different species concentrated in a single area. What kinds of environments do you think encourage greater biodiversity.
How would you answer to a person who argued that there is nothing to worry about because natural systems, through natural succession, will heal the wounds of human activities and restore the balance of nature.
Two and a half miles below ocean surface in areas where the Earth’s tectonic plates are moving apart are hydrothermal vents.
In mice, the A y allele of agouti mice is ecessive lethal allele, but it is dominant for yellow coat color. What phenotypes and ratios of offspring would you expect from the cross of a mouse
Suppose that each excitatory presynaptic neuron causes a 0.5mv depolarization of postsynaptic neuron, and each inhibitory presynaptic neuron causes a 0.5mv hyperpolarization of postsynaptic neuron.
For an amino acid such as alanine, the major species in solution at pH 7 is the zwitterionic form. Suppose a pKa value of 8 for the amino group and a pKa value of three for the carboxylic acid.
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