21. Each sperm and egg cell contains one copy of each gene in our body. 22. The fish is unable to generate sperm or egg cells . 23. Each ovary contains hundreds of egg cells or ova ( singular " ovum " ). 24. These included attempting to rape egg cells and eventually drowning after attempting to murder Kirsty. 25. Company researchers say they cloned the embryo by starting with a donated female egg cell . 26. Would it be OK to create stem cells without bringing sperm and egg cells together? 27. The process by which the egg cell ( ovum ) is released is called ovulation. 28. Each parents genetic material ( DNA ) is copied into a sperm or egg cell . 29. She is the egg cell of man's spiritual quest to impregnate the unseen with meaning. 30. The fertilized egg cell is known as the zygote.
