Identify the structure shown

TLS Online TPP Program

#Question id: 806

#Unit 1. Molecules and their Interaction Relevant to Biology

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which characteristic does this double-stranded molecule have when it forms a B-DNA structure?

TLS Online TPP Program

#Question id: 15369

#Unit 4. Cell Communication and Cell Signaling

Changes in DNA methylation, as well as changes in the activity of histone-modifying enzymes or chromatin-remodeling complexes, are major drivers of tumorigenesis,

a. Hypermethylation of CpG dinucleotides of TSG gene causes cancer.

b. Hypomethylation of CpG dinucleotides of proto-oncogenes causes cancer.

c. SWI/SNF plays a role in repressing the expression of E2F genes.

d. Gain of SWI/SNF function, just like loss of Rb function.

Which of the statements are INCORRECT;

TLS Online TPP Program

#Question id: 4106

#Unit 3. Fundamental Processes

When bacteriophage lambda infects a sensitive bacterium, one of the first messenger RNA species synthesized is very short, beginning at a site P L and extending just through an adjacent gene N. After the appearance of the gene N protein, messages become much longer, still beginning at PL but extending far beyond gene N. The N gene encodes

TLS Online TPP Program

#Question id: 10833

#Unit 10. Ecological Principles

All the organisms that occur in the redwood community

TLS Online TPP Program

#Question id: 18225

#Unit 7. System Physiology – Animal

________ refers to the long-term wear and tear on the body caused by the many simultaneous changes that need to occur to maintain homeostasis.