Enzymes in saliva kill some bacteria and protect the mouth from infection. When food reaches the stomach, much of it is sterilized by the hydrochloric acid in digestive juices. Further into the digestive tract, the friendly bacteria living in the intestines provide protection from invading bacteria
Answer:
A dominant trait can be described as the one which masks the effect of a recessive trait. The alleles for a recessive trait gets suppressed by the dominant one.
A punnet square can be described as a diagram which depicts the outcomes of a cross. For single traits, the cross is monohybrid. For studying two traits at a time, a dihybrid cross can be made.
The punnet square for the following Holstein cattle can be shown as:
BP Bp bP bp
BP BBPP BBPp BbPP BbPp
Bp BBPp BBpp BbPp Bbpp
bP BbPP BbPp bbPP bbPp
bp BbPp Bbpp bbPp bbpp
The results show the phenotypic ratio to be 9 black/polled : 3 black/horned : 3 red/polled : 1 red/horned
Answer:
B.
Explanation:
Osmosis moves water from the part of the membrane with less solutes to the part with more solutes. This will continue until the cell or whatever it is reaches equilibrium.