--%>

Define PAM Matrices

PAM Matrices: PAM matrices is Percentage of Acceptable point Mutations, developed by Dayhoff mutation data matrix. He developed this method along with his co-workers during analysis of the evolution of proteins. This gives the probability of one amino acid mutating to the other amino acid within a particular evolutionary time. The scoring schemes are denoted by a number following. Examples are PAM40 and PAM250.Lower PAM matrices would determine short alignments of highly similar sequences and higher PAM matrix would determine longer, weaker and lower alignments. For using PAM250, 20% of the amino acids should remain uncharged for the sequences to be considered to be related.

   Related Questions in Biology

  • Q : What is blood stem cells Talk about the

    Talk about the blood stem cells?

  • Q : List the biologic functions these

    Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?

  • Q : Interphase of meiosis and interphase of

    Is interphase of meiosis distinct from the interphase of mitosis?

  • Q : Heredity Biological Factor -

    This is the transmission of the qualities from ancestor to descendant through a mechanism lying primarily in the chromosomes of the germ cells. Heredity predisposes to certain physical, mental, and emotional states. It has been established through research on animals that physical and psychologic

  • Q : Explain the excretion procedure in

    Explain the excretion procedure in fishes?

  • Q : Describe Safety Training Safety

    Safety Training: It is an effective training program which reduces the number of injuries and deaths, legal liability, property damage, illness, workers' compensation claims, and missed time from work. The safety training will too help in raising the

  • Q : Relation between hypothalamus and

    Write down the relation between hypothalamus and hypophysis?

  • Q : Define Project Manager Project Manager

    Project Manager: Responsible for Planning, Execution and Closure of any project. Here the project is defined by the characteristic of being temporary strive, having unique objective with defined beginning and end and constrained by time and/or financi

  • Q : Phanerogamic or cryptogamic Specify the

    Specify the chief representatives of the pteridophytes? Whether this plant group is phanerogamic or cryptogamic?

  • Q : WHY salt and sugar used in dried fruits

    Why salt and sugar employed in the manufacture of the dried fruits and dried meat?