Sentences with phrase «egg cells inside»

When female animals form egg cells inside their ovaries, they deposit messenger RNAs (mRNAs)-- a sort of genetic instruction set — in the egg cell cytoplasm.

Not exact matches

Is it when the sperm cell has begun to enter the egg cell, but before the nucleus of the sperm cell is «inside» the egg cell?

Is it when the sperm cell is 1 micro nanometer inside the egg cell, and before the original cell begins to replicate?

Modern insects like the sawfly deposit their eggs inside a plant's leaf or stem so that the larvae will have plant cells to feed on when they hatch.

But like the medieval alchemists, today's cloning and stem cell biologists are working largely with processes they don't fully understand: What actually happens inside the oocyte to reprogram the nucleus is still a mystery, and scientists have a lot to learn before they can direct a cell's differentiation as smoothly as nature's program of development does every time fertilized egg gives rise to the multiple cell types that make up a live baby.

Williams contends that these innovations took hold at least 125 million years ago and made it possible for early angiosperms to evolve more flexible and sheltered modes of fertilization, including ovaries containing egg cells deep inside the plant.

There, the cells begin forming bones, skin and veins in almost the same way as when the animal was developing inside the egg.

The images depict what might be called embryology in flagrante: micrographs of sperm cells, trailing accordion - like pleats of white zags as they streak across a vast blue ocean of ooplasm; a multihued blastocyst in the process of hatching out of the egg's zona pellucida; and egg cells with a fringe of glowing, fate - determining proteins, looking a bit like a solar eclipse inside a cell.

Yet, egg cells are created inside a woman's body before she is born.

It may not have made the lemur ill, but the retrovirus spread into the animal's testes (or perhaps its ovaries), and once there, it struck the jackpot: It slipped inside one of the rare germ line cells that produce sperm and eggs.

This is in contrast to where your egg cells grow and develop deeper inside your ovary.

At the ASCB / IFCB meeting in Philadelphia, Feric and Brangwynne will take the gravity story one step further on December 8, describing how giant Xenopus egg cells manage to support thousands of membrane-less compartments inside the nucleus.