EGL USA is one of the largest and oldest independent gemological institutions focusing on gemstone certification and research. Originally part of an international network founded in Europe in 1974, EGL USA opened its first U.S. lab in the heart of New York's international diamond and jewelry district in 1977.
the fusion of the nucleus of a haploid sperm cell and the nucleus of a haploid egg cell, forming a diploid zygote zygote diploid cell formed when the nucleus of a haploid sperm cell fuses with the nucleus of a haploid egg cell tetrad group of four chromatids formed during prophase I of meiosis by the two sister chromatids in each of the two homologous chromosomes
A. fuses with the plasma membrane of the egg cell B. contains the sperm's mitochondria C. contains the fuel that powers the sperm D. contains the sperm's nucleus and is the part of the sperm that enters the egg during fertilization E. contains enzymes that are released when the sperm encounters... show more A. fuses with the plasma membrane of the egg cell B. contains the sperm's mitochondria C. contains the fuel that powers the sperm D. contains the sperm's nucleus and is the part of the sperm that enters the egg during fertilization E. contains enzymes that are released when the sperm encounters an egg and dissolves a hole in the jellylike matrix that surrounds the egg