Three disadvantages of utilizing microarrays for transcriptome analysis are that microarrays (select all correct choices):
A. require large quantities of RNA to hybridize and thus show a positive signal.
B. show high levels of nonspecific (background) hybridization.
C. may not have DNA to which specific RNAs will hybridize.
D. will not allow comparison of transcription between cell types.
E. do not accurately report transcriptional levels of specific mRNAS.
F. are not able to detect and evaluate rare allele variant transcripts.
C, E, F
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Which of the following is NOT characteristic
of cancer tissue?
a. retention of adhesion proteins b. increased vascular flow c. malformed cytoskeleton d. abnormal chromosome number e. all of these are characteristic of cancer tissue
Which one of the following types of tissue stores fat in the body?
A) cartilage B) bone C) adipose tissue D) fibrous connective tissue
The side toes of a horse, the pelvis of the whale, and the human appendix are all examples of structures that resemble structures of presumed ancestors, which are known as
A. analogous structures. B. homologous structures. C. acquired structures. D. vestigial structures. E. homeotic mutations.
Select the dry heat method of microbial control from the following examples.
A. Desiccation B. Incineration C. Boiling D. Autoclaving