One of the methods used widely to calculate the distance of nearby or closer objects in astronomy is Parallax. The distance of the stars are usually expressed in light years but the unit of distance is parsec or parallax second.
1 Parsec = 3.26 light years
Astronomers are not able to measure the parallax of a star that is a million light years away because the star is too far and the distance with which the start appears to move is too less to be calculated accurately.
i think the answer should be asymptomatic
there was no following stated.
It has11 protons and neutrons atomic number=11 mass=22
The square denotes male. One parent is recessive, so X must have at least one recessive allele. B is the right answer.