TLS Online TPP Program

#Id: 9378

#Unit 11. Evolution and Behavior

Learned behaviors - which are genetically hardwired and can be performed without any prior experience or training.

TLS Online TPP Program

#Id: 6909

#Unit 8. Inheritance Biology

Duplication- is a mutation in which part of the chromosome has been doubled.

TLS Online TPP Program

#Id: 7583

#Unit 5. Developmental Biology

Negative membrane potential may allow calcium channels to be opened and permit calcium to enter the sperm. 

TLS Online TPP Program

#Id: 7011

#Unit 5. Developmental Biology

Regulation is highly influenced by the microenvironment that surrounds a stem cell and is known as the stem cell niche.

TLS Online TPP Program

#Id: 6032

#Unit 3. Fundamental Processes

Synthesis of an Okazaki fragment displaces the RNA primer of the preceding fragment in the form of a “flap.”

the base of the flap is cleaved by the enzyme FEN1 (f lap endonuclease 1).  In this reaction, FEN1 functions as an endonuclease, but it also has a 5’–3’; exonuclease activity. In DNA repair reactions, FEN1 may cleave next to a displaced nucleotide and then use its exonuclease activity to remove adjacent material.