The somatic cells of the hub create asymmetric proliferation by secreting the paracrine factor Unpaired onto the cells attached to them

TLS Online TPP Program

#Id: 4739

#Unit 5. Developmental Biology

The stem cell lineage always undergoes meridional ,division to produce

(1) An anterior founder cell (AB)

(2) A posterior cell (P1) that will continue the stem cell lineage.

TLS Online TPP Program

#Id: 1973

#Unit 10. Ecological Principles

T_x (total years lived) is calculated by summing the values of Lx in age class x and all subsequent (older) age classes.

TLS Online TPP Program

#Id: 3507

#Unit 2. Cellular Organization

Introns have negative Fold Potential i.e. potential to form stem loop

TLS Online TPP Program

#Id: 1822

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 526

#Unit 2. Cellular Organization

The length of Introns is variable while exons are almost constant in length.