Using the techniques of genetic engineering, you design a cytoplasmic protein you want to accumulate within the ER of yeast cells. To accomplish this goal, you need to
A) do nothing; all proteins go through the ER.
B) incorporate the appropriate mannose-6-phosphate groups.
C) incorporate the appropriate DNA sequence with the proper signal.
D) incorporate radioactive amino acids into the protein.
E) incorporate the appropriate lipid groups into the lipoprotein.
C) incorporate the appropriate DNA sequence with the proper signal.
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Which types of chromosomes provide the basis for sex determination in most mammals?
A) haploid set of chromosomes B) diploid set of chromosomes C) autosomes D) sex chromosomes E) homologous chromosomes
What is the movement of part of one chromosome to another chromosome called?
A) inversion B) duplication C) deletion D) translocation
All members of the seven families for whom Mary Mallon prepared meals developed typhoid fever. Mary did not get sick. This is an example of __________.
A) a sporadic disease B) an opportunistic infection C) a nosocomial infection D) a carrier borne infection
Which of the following is NOT one of the signs of aging in the skin?
a. increased collagen b. reduced fibroblasts c. increase in sweat glands d. less pigmentation in hair e. increased fat deposits