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In a study published in the journal Science, collaborators at NHGRI, the National University of Ireland, Galway, and the Whitney Laboratory for Marine Bioscience at the University of Florida, Augustine, reported that activation of the gene Tfap2 in adult stem cells in Hydractinia can turn those cells into germ cells in a cycle that can repeat endlessly.
… genes. Piwi1-positive spermatogonia are shown in yellow; cell nuclei are in turquoise. Germ cell induction and all stages of gametogenesis can be … Hydractinia . Piwi1-positive oocytes are shown in yellow; cell nuclei are in turquoise. Germ cell induction and all …
Educational Resources
A centrosome is a cellular structure involved in the process of cell division.
… is a cellular structure involved in the process of cell division. … Cell Division, Basic Biology, Nucleus … is a cellular structure involved in the process of cell division. Before cell division, the centrosome duplicates and then, as … is a cellular structure involved in the process of cell division. …
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A nuclear membrane is a double membrane that encloses the cell nucleus.
… A nuclear membrane is a double membrane that encloses the cell nucleus. … Nuclear Membrane, Chromosome, Cell Biology … The nuclear membrane is a double layer that encloses the cell’s nucleus, where the chromosomes reside. The nuclear … membrane serves to separate the chromosomes from the cell’s cytoplasm and other contents. An array of small holes …
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A nucleus is a membrane-bound organelle that contains the cell's chromosomes.
… A nucleus is a membrane-bound organelle that contains the cell's chromosomes. … Chromosome, Cell, Deoxyribonucleic Acid (DNA) … to genomics, is the membrane-enclosed organelle within a cell that contains the chromosomes. An array of holes, or … A nucleus is a membrane-bound organelle that contains the cell's chromosomes. …
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Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions.
… Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. … Mitochondria, Mitochondrial DNA, Cell Biology, Adenosine Triphosphate, ATP … Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most …
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A fibroblast is the most common type of cell found in connective tissue.
… A fibroblast is the most common type of cell found in connective tissue. … Cell Biology, Wound Healing … A fibroblast is a type of cell that contributes to the formation of connective tissue, … A fibroblast is the most common type of cell found in connective tissue. …
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Meiosis is the formation of egg and sperm cells. In sexually reproducing organisms, body cells are diploid, meaning they contain two sets of chromosomes (one set from each parent).
… Meiosis, Sexually Reproduction, Cell Biology, Chromosome … Meiosis is a type of cell division in sexually reproducing organisms that reduces … that unite during fertilization must be haploid, with a single set of chromosomes. During meiosis, each diploid cell undergoes two rounds of division to yield four haploid …
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A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
… A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and … especially proteins destined to be exported from the cell. … Golgi Apparatus, Camillo Golgi, Cell Biology … A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and …
News Release
Researchers have now identified three health conditions for which people with SCT are at increased risk.
… to 3 million people have a gene variant associated sickle cell trait (SCT) and most never have related health … risk for some individuals." Hematologists and sickle cell experts evaluated the association of SCT with 24 health … said Gregory Kato, M.D., director of the Adult Sickle Cell Center of Excellence at the University of Pittsburgh …
Educational Resources
Metaphase is a stage during the process of cell division (mitosis or meiosis).
… Metaphase is a stage during the process of cell division (mitosis or meiosis). … Metaphase, Genetic Material, Cell Biology, Chromosome … Metaphase is a stage during the process of cell division (mitosis or meiosis). Normally, individual chromosomes are spread out in the cell nucleus. During metaphase, the nucleus dissolves and the …