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  2. Rho-associated protein kinase - Wikipedia

    en.wikipedia.org/wiki/Rho-associated_protein_kinase

    The two mouse ROCK isoforms, ROCK1 and ROCK2, have high homology.They have 65% amino acid sequences in common and 92% homology within their kinase domains. [1] [4]ROCKs are homologous to other metazoan kinases such as myotonic dystrophy kinase (), DMPK-related cell division control protein 42 ()-binding kinases (MRCK) and citron kinase.

  3. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Developmental psychobiology posed this question since the lack of knowledge about the precise coordination of all cells, even those not related anatomically, in space and time during the embryonic period does not allow us to understand what forces at the cellular level coordinate four very general classes of tissue deformation, namely: tissue ...

  4. Biogeochemical cycle - Wikipedia

    en.wikipedia.org/wiki/Biogeochemical_cycle

    It involves medium to long-term geochemical processes belonging to the rock cycle. The exchange between the ocean and atmosphere can take centuries, and the weathering of rocks can take millions of years. Carbon in the ocean precipitates to the ocean floor where it can form sedimentary rock and be subducted into the Earth's mantle.

  5. List of index fossils - Wikipedia

    en.wikipedia.org/wiki/List_of_index_fossils

    Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends. Another term, "zone fossil", is used when the fossil has all the characters stated above except wide geographical distribution; thus, they correlate the surrounding rock to a biozone rather than a specific time period.

  6. Akt/PKB signaling pathway - Wikipedia

    en.wikipedia.org/wiki/Akt/PKB_signaling_pathway

    Phosphatase and tensin homolog (PTEN) antagonises PI3K by converting PI(3,4,5)P 3 into PI(4,5)P 2. Loss of PTEN function leads to over-activation of Akt and is common in cancer cells (PTEN is a tumour suppressor). SH2-containing Inositol Phosphatase (SHIP) also dephosphorylates PI(3,4,5)P 3, at the 5' position of the inositol ring. [22]

  7. Diagenesis - Wikipedia

    en.wikipedia.org/wiki/Diagenesis

    Diagenesis (/ ˌ d aɪ. ə ˈ dʒ ɛ n ə s ɪ s /) is the process of physical and chemical changes in sediments first caused by water-rock interactions, microbial activity, and compaction after their deposition. Increased pressure and temperature only start to play a role as sediments become buried much deeper in the Earth's crust. [1]

  8. Conglomerate (geology) - Wikipedia

    en.wikipedia.org/wiki/Conglomerate_(geology)

    Conglomerate (/ k ən ˈ ɡ l ɒ m ər ɪ t /) is a sedimentary rock made up of rounded gravel-sized pieces of rock surrounded by finer-grained sediments (such as sand, silt, or clay). The larger fragments within conglomerate are called clasts, while the finer sediment surrounding the clasts is called the matrix.

  9. P1PK blood group system - Wikipedia

    en.wikipedia.org/wiki/P1PK_blood_group_system

    Rare p phenotype (absence of P1PK antigens caused by null mutations in A4GALT): anti-P 1 (-), anti-P (-), anti-PP 1 P k (-), and anti-P k (-). These individuals have a very strong anti-PP 1 P k which can be associated with delayed hemolytic transfusion reactions and early spontaneous abortions or hemolytic disease of the fetus and newborn (HDFN).