Haploid female reproductive cell or gamete.
1 Then an egg cell is hollowed out and the nucleus from the adult cell inserted.
2 The nucleus of a viable egg cell is replaced with a cell nucleus from a donor.
3 If the affected DNA is in a sperm or egg cell , these changes may be passed along to offspring.
4 After the hybrid egg cell began dividing, it was implanted into the uterus of another animal, which carried the clone to birth.
5 An inherent impulse in the ovum (protoplasm or egg cell ) serves to separate the albuminous substance into groups of an opposite nature.
6 When we turn to the starting point of human development, we find an egg cell and a spermatozoon, which unite and whose nuclei intermingle.
7 The nucleus of the fertilised egg is removed from the cell and put into an egg cell from another women, which has healthy mitochondria.
8 As a result, the team was able to remove the mammary gland cell's nucleus, treat it and then place into a different sheep's egg cell .
9 The extraction of the nucleus from an egg cell is pictured in this January 31, 2012 handout photo from Oregon Health & Science University.
10 The ova, the female egg cells , are the fundamental concern of the ovary.
11 Arrows point out germ stem cells that proliferate egg cells in female mice.
12 Another team generated similar cells using human egg cells only, a process called parthenogenesis.
13 However, the stem cells formed contained chromosomes from both the adult and the egg cells .
14 Nuclei from the reprogrammed cells would be placed into elephant egg cells whose own genetic material has been removed.
15 The cells of especially long-lived roundworms run some of the same genetic programs found in sperm and egg cells .
16 In females, these cells generate new egg cells throughout the life of the mouse; in males, they generate new sperm.
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