A new bill, if passed, proposes amendments to the state's legal code regarding the definition of human being and person as ...

This is the story of your creation. It began with a sperm, the smallest cell in the human body, fusing with the biggest cell… an egg. Every day, the human male produces hundreds of millions of ...

Faced with increasing difficulties related to infertility, a surprising technology is emerging in laboratories: artificial ...

The debate over when human life begins took a sharp turn in Texas, where a state legislator filed a bill that would define an ...

Unless prohibited, sperm and ovum could also be used for non-human fertilization in human-animal chimera research; and Upon donating one’s human reproductive material for medical research or ...

Figure 1: Overview of the imprinted domain in human 15q11–q13 and the PWS family studied. We isolated mouse oocytes following hormonal stimulation as described 19. We isolated mouse spermatozoa ...

Two weeks after a human egg is fertilized, primordial germ cells (PGCs), which develop into sperm and eggs, are formed. In six to 10 weeks after fertilization, PGCs differentiate into pro ...

In humans, fertilisation happens inside the woman’s body. This is a process called internal fertilisation. The human female reproductive system working during reproduction and fertilisation.

In humans, males have both male and female sex chromosomes. In Komodo dragons, females do—so Flora had within her the genetic materials needed for embryos to develop. This self-fertilization ...

In response to the “Change the lens, view the body as a gift’ letter printed on Dec. 12, clarification is needed on the line “when fertilization ...

Arlington Bishop Michael Burbidge on Wednesday urged Catholic families to offer a “heroic witness” to love by rejecting the practice of in vitro fertilization (IVF), which the prelate called ...