Examlex
An abstract class is one from which you can create any concrete objects and from which you can inherit.
Y Chromosome
One of the two sex chromosomes in humans and most other mammals, typically present in males, who have one X and one Y chromosome.
X Chromosome
One of the two types of sex chromosomes, present in both genders but in women as a pair and men paired with a Y chromosome.
Gamete
A mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
Nucleus
The central and most important part of an atom, containing protons and neutrons, or a membrane-bound organelle in eukaryotic cells that contains the genetic material.
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