Sentences with phrase «internal cytoplasm»

When a sperm cell meets an egg cell (the oocyte), it burrows through the thick outer rind surrounding the egg (the zona pellucida), enters the internal cytoplasm of the egg (the ooplasm), and locomotes its male DNA — half of the typical number of chromosomes — to the female half within about three to four hours.

Not exact matches

The same complex may apply not just to secreted proteins, but also to ones intended for internal use by the cell, which are folded in the cytoplasm.

He believes that this sets up the internal organization of the egg's cytoplasm.

There on the screen was the huge, rotund universe of the female egg cell, its internal jelly, or cytoplasm, smooth and evenly grained, and there, just below the equator, two ghostly yolklike circles around the male and female DNA, mere mirages of genetic material, in close proximity, nearly nuzzling.

Although the evidence was subsequently contested, some single - celled microbial life lacking a nucleus that segregates their internal DNA or RNA («prokaryotes») from the surrounding cytoplasm may have flourished in darkness within cracks in Earth's seafloor crust and around deep, warm or boiling hot ocean springs (hydrothermal or volcanic vents, such as at Lost City or at black smokers) without a need for light or free oxygen in the oceans or atmosphere.