If you were to draw a punnet square of two individuals with the genotypes Ss, there would be 1 box with ss, 2 boxes with Ss, and 1 box with SS.
The possible genotypes are SS, Ss, and ss.
The possible phenotypes are sufferers of sickle cell (ss) and non-sufferers (Ss and SS)
The correct answer is lysosomes
Tay-Sachs disease is a genetic metabolic disorder in which a lipid called GM2 ganglioside builds in the brain which results in spasticity and death in childhood.
This disease is also known as lysosomal storage disease. Lysosomes are the major organelle that contains enzymes to breakdown molecules. In Tay-Sachs disease deficiency of hexosaminidase A occurs in lysosomes and this enzyme is needed to breakdown fats.
So due to this deficiency, it results in the accumulation of fats in the brain and spinal cord causing Tay-Sachs disease.
Duchenne muscular dystrophy is a genetic disorder caused by the mutation in the DMD gene which codes for the Dystrophin protein.
The dystrophin protein is responsible for the intact nature of the muscle cells. The disease is progressive in nature as it weakens and degenerates the muscles which cause the ability to sit, walk and other daily muscular activities.
The disease is inherited from the Mother as the gene is present on the X chromosome and the dystrophin protein become nonfunctional.
Thus, True is the correct answer.
Xylem tissue is important is the transport of water and minerals from the roots to the leaves of the plant. It is this water that is used in photosynthesis and also significant in the transpirational pull that significant in plant support. When the xylem is destroyed the plant wilts because it loses turgidity and dies because water is unable to reach the leaves for photosynthesis so the plant cannot make its food.
these protests produce chemical energy by fixing CO2