The scientist can conclude that the plants that were used in this experiment contained both a dominant and recessive allele. That the plants were hybrids which causes the off springs to have a 3:1 ratio.
The scientist can conclude that both or one of the pea plant (either white or purple) has or possesses recessive alleles. Also this cross can be possibly between a heterozygous dominant and homozygous recessive pea plant. Suppose the white pea plant is homozygous recessive (ww) and the purple plant is heterozygous dominant (Pw) then the cross between the two would result into
Pw x ww
Pw, Pw, ww, ww
Thus the offsprings have both purple and white flowers.
A dominant part of aquatic animals like fish and prawns inhale through uncommon organs called gills.
The skin that help in utilizing oxygen broke up in water. which help in return of gases and Gills contain veins.
Amphibian life forms have a unique organ called gills, which permits them to inhale oxygen in the water.
The two sides of the pharynx (throat) by the Gills when the gases exchange in fish .
<em>Gills are tissues that resemble short strings, protein structures called fibers. </em>
These fibers have numerous capacities including the exchange of particles and water, just as the trading of <em>oxygen, carbon dioxide, acids and alkali.</em>
