Since one of two ( or both ) parents carry the CF gene found in chromosome 7, that can therefore leave the child suffering from Cystic Fibrosis.
Answer:
relating to or determined by the origin, development, or causal antecedents of something
Explanation:
Identical twins are formed through the process of meiosis where a fertilised egg separates to form two identical cells with a common genetic information.
Fraternal twins on the other hand are developed from the fertilisation of two different eggs and two sperm cells. This type of twins possess unique genetic information.
In meiosis the are two divisions. The division of the original cell results in two daughter cell. Those two cells divide to produce 4 haploid cell in total.
The answer would be synaptic pruning.
The brain in children will have a much more synaptic connection than adults. This connection is important for learning process in the early stage of life. More synaptic connections allow multiple parts the brain areas to be connected even if there is a damage in one area.
The synapse will be cut down later in a process called synaptic pruning. Only the area that frequently used will be preserved.
