Cell-mediated responses work against _____
a. intracellular pathogens
b. extracellular pathogens
c. cancerous cells
d. both intracellular pathogens and extracellular pathogens
e. both intracellular pathogens and cancerous cells
f. intracellular pathogens, extracellular pathogens, and cancerous cells
E
You might also like to view...
You are working in a cancer lab and are interested in identifying some genes that are important in the onset of lung cancer. You have several genes you think may be involved, so you "print" spots of the DNA sequences of interest on a microarray slide. After doing this, you isolate mRNA from both normal lung cells and cancerous lung cells. Before you use these mRNAs to probe the microarray slide, you need to
A. make cDNA and amplify the cDNA using PCR. B. amplify the mRNA using PCR. C. clone each mRNA into a BAC vector. D. add reverse transcriptase and fluorescent nucleotides to the mRNA to make cDNA. E. sequence the mRNA.
Natural selection is best summarized as ____
a. mutation in various species b. independent assortment of genes during meiosis c. the difference in survival and reproduction amound members of a population d. changes in chromosome number or structure e. the adaptation of varying individuals to changes in the environment
How many chromatids are present in prophase I in a diploid cell in which 2n = 12?
A) 6 B) 12 C) 24 D) 48 E) Can't tell–more information is required.
Applications of CRISPER-Cas in biotechnology include all of the following EXCEPT ________
A) creating bioreactors to manufacture human proteins B) modulating epigenetic regulation C) engineering pigs that are resistance to PRRS D) increasing drought resistance of crops