The essential information the product of the bicoid gene in Drosophila provides during development is (D) orientation of the anterior-posterior axis.
Bicoid is the maternal gene that acts as a morphogen. It expresses itself on the basis of its concentration gradient. The concentration of bicoid is high towards the anterior region, hence the region where bicoid protein is expressed les is the posterior portion.
Drosophila is the fruit fly commonly found in the households. It is one of the most studied model organism in developmental biology. This is because it can reproduce rapidly, has a relatively simple structure and is cost-effective.
Option C 100mv because the membrane goes from -70 mV to +30 mV. Thus, during the action potential, the inside of the cell becomes more positive than the outside of the cell.
