Retinal ganglion cells contain melanopsin.

TLS Online TPP Program

#Id: 8006

#Unit 10. Ecological Principles

The differentiation of niches that enables similar species to coexist in a community is called resource partitioning.

TLS Online TPP Program

#Id: 6660

#Unit 3. Fundamental Processes

The sequence AAUAAA is a signal for cleavage to generate a 3’ end of mRNA that is polyadenylated. Addition of poly(A) to nuclear RNA can be prevented by the analog 3’–deoxyadenosine known as cordycepin

TLS Online TPP Program

#Id: 8443

#Unit 1. Molecules and their Interaction Relevant to Biology

The 3¹⁰ helix has 3 residues per tum and contains 10 atoms between the hydrogen bond donor and acceptor, hence its name.

TLS Online TPP Program

#Id: 2344

#Unit 3. Fundamental Processes

consensus sequence of TATAAT in which the leading TA and the final T are highly conserved. Upstream sequences around position –35 also have a region of sequence similarity, TTGACA. 

TLS Online TPP Program

#Id: 2266

#Unit 11. Evolution and Behavior

Evolutionary constraint are restrictions, limitations, or biases on the course or outcome of adaptive evolution.