I would say D. Lamarck thought that organisms changed out of need and after a change in the environment and Darwin thought organisms changed by chance when they were born and before there was a change in the environment.
3% of earths water is usable as a fresh water source
The answer is so they can have large litters. This then would be an advantage for the pigs to have the long uterine horns and also a minute uterine body and also not the opposite. Hope this is the answer and would be of help.
A neuron is the structural and functional unit of the nervous system involved in conduction of nerve impulses. It is divided into cell body, dendrites and axon. Cell body or the soma has the cell organelles and the nucleus and the two processes called the axon and dendrites emerge from the cell.
If a neuron is compared to an electric cord, the myelin sheath can be compared to the insulator of the electric cord. Myelin is a lipid rich substance that insulates the nerve axons. The myelin sheath insulates the nerve axons to increase the speed of transmission of nerve impulse. It is formed by the concentric wrapping of Schwann cell around the axon.
If the mother is a carrier and the father is normal, the outcomes for potential children would be:
XH Xh
XH XHXH XHXh
Y XHY XhY
So let’s break these down
XHXH = will be a daughter (XX) with normal blood (HH)
XHXh = will be a daughter (XX) who is a carrier for hemophilia (Hh)
XHY = will be a son (XY) with normal blood (H)
XhY = will be a son (XY) with hemophilia (h)
Because this disease is inherited on the X chromosome, male offspring tend to either have it or not. They can’t be carriers because they only have one X chromosome. So the chances of having a son with hemophilia will be 50% cause the boys have a 50% chance of inheriting hemophilia.
On the other hand, daughters will either have normal blood or be carriers in this situation. So to answer the question, the chance a daughter of this couple would have of inheriting hemophilia is 0%. This only changes if their father has hemophilia. Then they will either be a carrier or will have hemophilia.
