Sentences with phrase «mammalian egg cells»

This had been impossible in the past because, unlike mammalian egg cells which are tiny and transclucent, a bird's egg cell is filled with opaque yolk and it is huge — this means that finding the nucleus is like looking for a white marble in a pool of milk.

The results help fill in the scientific puzzle kicked off by Dolly's cloning, which proved that mammalian egg cells were capable of dissolving the genetic roadblocks that limit the potential of most adult cells to give rise to only a single type of tissue — that of the organ from which they hail — whereas embryonic stem cells have the potential to become virtually any kind of body tissue.

Not exact matches

It was 1996 when biologists first fused a mammalian skin cell with an egg cell, cloning Dolly the sheep.

Harvard Medical School reproductive biologist Jonathan Tilly made headlines in March when he suggested mammalian ovaries contain stem cells that give rise to new potential eggs, or oocytes, throughout adulthood.

The acquisition of so much cellular material from its sisters almost certainly helps the egg start a program of growth through which it becomes the largest cell in the mammalian body.

He notes that the new study is especially relevant because it worked in mammalian cells, which ultimately are a better way to grow the virus than eggs: It's a faster production system and avoids mutations that occur when the virus adapts to chicken eggs, which can compromise vaccine effectiveness.

Dr. Reinholdt's research focuses on comparative and functional mammalian genomics, reproductive development and stem cell biology.Researches gamete development, which gives rise to eggs and sperm and supports early embryo development, with a focus on mammalian reproduction and fertility.

The reason CRISPR is so controversial is that it works well on mammalian «germline» cells, such as sperm, eggs and embryonic cells, and the genetic editing can therefore result in heritable traits.