Answer: A star that collaspes is called a neutron star
Explanation: Have a great day! ;)
If the expression of a trait requires only one copy of a gene (one allele), that trait is considered dominant. If the expression of a trait requires 2 copies of a gene (2 alleles), that trait is considered recessive. One exception is X-linked disorders.
A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.