Overview. Iron-deficiency anemia is a common type of anemia. The term anemia usually refers to a condition in which your blood has a lower than normal number of red blood cells. Red blood cells carry oxygen and remove carbon dioxide (a waste product) from your body.
The Y chromosome is one of two sex chromosomes (allosomes) in mammals, including humans, and many other animals. The other is the X chromosome. Y is the sex-determining chromosome in many species, since it is the presence or absence of Y that determines the male or female sex of offspring produced in sexual reproduction. In mammals, the Y chromosome contains the gene SRY, which triggers testis development.
The letter Y is inherently vacillating in its nature and usage, and consequently is sometimes a vowel, sometimes a consonant, depending upon how it is used in the name. When determining if the Y is a vowel or a consonant, the basic rule is this: When the letter serves as a vowel, and in fact sounds like one, it is a vowel.