pKa of cytosine normally has a value of 4.2 but in hoogsteen triple base pairing this value changes to 

TLS Online TPP Program

#Question id: 1037

#Unit 4. Cell Communication and Cell Signaling

In a rapidly multiplying bacterial population, cell numbers increase

TLS Online TPP Program

#Question id: 7761

#Unit 5. Developmental Biology

Correct sets of genes are well known to be involved in aging and its prevention, and each set appears to be conserved between phyla and even kingdoms. 

a. DNA repair enzymes

b. proteins of the insulin signaling pathway

c. proteins in the mTORC1 signaling pathway

d. chromatin remodeling enzymes

TLS Online TPP Program

#Question id: 3353

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Question id: 10477

#Unit 1. Molecules and their Interaction Relevant to Biology

The tendency of nonpolar molecules to self‐associate in water rather than to dissolve individually is called

TLS Online TPP Program

#Question id: 33701

#Unit 2. Cellular Organization

Select all correct options 

A. Satellite DNA has a very short repeating sequence and no coding function.

B. Satellite DNA occurs in small blocks that can have distinct physical properties.

C. Satellite DNA is often the major constituent of facultative heterochromatin.