Practice Questions

TLS Online TPP Program

#Question id: 1532

For a particular microarray assay (DNA chip), cDNA has been made from the mRNAs of a dozen patients' breast tumor biopsies. Which of the following types of evidence will researchers be looking for in order to determine if the cells are cancerous?

#Unit 4. Cell Communication and Cell Signaling

a particular gene that is amplified in all or most of the patient samples
a pattern of fluorescence that indicates which cells are over proliferating
a pattern shared among some or all of the samples that indicates gene expression differing from control samples
a group of cDNAs that match those in non-breast cancer control samples from the same population

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TLS Online TPP Program

#Question id: 28649

#Unit 2. Cellular Organization

Geminin a small protein, what is the contribution of geminin in cell cycle?

TLS Online TPP Program

#Question id: 15664

#Unit 8. Inheritance Biology

Which of the following statements regarding epigenetic inheritance is FALSE?

TLS Online TPP Program

#Question id: 28699

#Unit 2. Cellular Organization

First sugar residue is attached to dolichol by ___

TLS Online TPP Program

#Question id: 9266

#Unit 9. Diversity of Life Forms

which similarly inclusive taxon is represented as descending from the same common ancestor as Canidae?

TLS Online TPP Program

#Question id: 175

#Unit 1. Molecules and their Interaction Relevant to Biology

The ionic charges associated with a protein molecule are ________.