A) A metal forms a + charged ion, so D2+
B) A nonmetal forms a - charged ion, so A-
C) C2-
D) B+
Answer:
Because it contains two different sex chromosomes
Explanation:
Man in its genome contains two sex chromosomes, X and Y, while woman contains two X chromosomes.
In order to be a carrier of a sex-linked trait, a person should have one copy (one allele) of a certain trait. For example, if a female has one X chromosome with mutation (e.g. disease carrying) and one normal X chromosome, she is carrier for the disease. But, on the other hand if a male has one X chromosome with mutation he will develop that disease.
Answer:
Streptococcus mutans.
Explanation:
Streptococcus mutans is the bacteria (it is still a microorganism) that predominatly causes tooth decay. It is present in all areas of the mouth.
Cytokinesis is the point at which a cell with duplicated genetic material becomes two daughter cells with identical DNA.
If two populations of birds stop interbreeding because of a difference in song patterns this would be described as behavioral isolation.
