In prokaryotic cells, there is only one point of origin, replication occurs in two opposing directions at the same time, and takes place in the cell cytoplasm. Eukaryotic cells on the other hand, have multiple points of origin, and use unidirectional replication within the nucleus of the cell.
The correct answer is iron, because it is often not included in children's multivitamin/mineral supplements. Iron is an important element for our health. It is especially important for the proper functioning of our red blood cells and it is found in many foods. Although iron is essential, too much can lead to iron toxicity. Iron poisoning was the leading cause of death from the medicine overdose in children younger than 6 years until the ends of the 1990s. But the trend has since changed due to better warning labels, education of prescribers, changes in iron preparations, and consumer awareness.
A sex-linked trait is a trait that is carried by the X chromosomes in females but it is not expressed(the phenotype). Females are only carriers because they have two copies of the X chromosome [one of them carries the trait and the other does not]. Males who inherit one copy of the X chromosome often get the trait (because the trait is in either one copy or the other of the X chromosome) and express it while their Y chromosome would became recessive. Thus, only males express sex-linked traits such as hemophilia or color blindness
<span>La rebelión juvenil mundial de 1968 dejó una marca en la cultura. Fue
una revolución contra el autoritarismo y las costumbres. En su conjunto, situó
de nuevo al hombre frente a los desafíos que enfrenta su libertad. Estos
hechos fueron importantes ya que ejercieron
presión a través de diversas protestas para que se detuviera la intervención a
Vietnam, y se retiraran las tropas que seguían desplegadas en el país.<span> Las protestas se replicaron a lo largo de Europa
en la lucha contra el autoritarismo y capitalismo, lo que incrementaba la presión
social a los Estados Unidos para culminar la intervención.</span></span>
Wind erosion changes the shape and height of sand dunes
