When producing our germ cells—egg and sperm—a special feature is required in the cell division process: Since male and female germ cells fuse during fertilization, the chromosome set of our genetic ...
During human pregnancy, a large proportion of zygotes do not mature into blastocysts, and many that form blastocysts do not implant. Studies of pregnancies with a clinical diagnosis, usually achieved ...
The development of an embryo is initiated when an egg is fertilized by a sperm. During fertilization, the chromosomes contributed by the mother and father come together to form the genome of the ...