#Question id: 32289
#Unit 2. Cellular Organization
#Question id: 29043
#Unit 10. Ecological Principles
The actual climatic conditions that organisms live in vary considerably within one climate is referred to as___
#Question id: 1474
#Unit 4. Cell Communication and Cell Signaling
Early observations of a cultured cell line indicated that the cells did not exhibit either density-dependent inhibition or anchorage dependence. What do these observations suggest about this cell line?
#Question id: 184
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the approximate charge difference between glutamic acid and alpha-ketoglutarate at pH 9.5?
#Question id: 4256
#Unit 2. Cellular Organization
With respect to CpG islands in our genomic DNA, which, if any, of the following descriptions do not apply?
1) frequently occurring (there are about 30,000 in the human genome).
2) long DNA sequences (typically from 10 kb to 100 kb in length).
3) low CG dinucleotide frequency.
4) frequently associated with transcriptional start sites.