--%>
Assignment Help - homework help

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 : Description of hematopoiesis Give a

    Give a brief description of the term hematopoiesis?

    		•
  • Q : Structures in cell nucleus Write down

    Write down the main structures in the cell nucleus?

    		•
  • Q : Question on ploting industry supply

    The table below illustrates the firm's revenue and cost information while the price falls to $35.If 100 identical firms are in the market, plot industry supply curve? For 100 firms along with identical cost struct

    		•
  • Q : Intra-specific and inter-specific

    Briefly describe intra-specific and inter-specific ecological interactions?

    		•
  • Q : How calcium ions contribute in the

    How do calcium ions contribute in the muscle contraction? Why do both muscle relaxation and muscle contraction spend energy?

    		•
  • Q : Meaning and Definition of Perception -

    Human beings are constantly attacked by numerous sensory stimulations including noise, sight, smell, taste etc, the critical question In the study of perception is why the same universe is viewed differently by different persons? The answer is the perception. Different people perceive the univers

    		•
  • Q : Describe Distribution Management

    Distribution Management: It is the management of resources and processes employed to deliver a product from a production location to the point-of-sale, comprising storage at warehousing positions or delivery to retail distribution poi

    		•
  • Q : How nervous tissue distributed in

    Describe how the nervous tissue is distributed in cnidarians? Answer: Their nervous system is diffuse; there is no brain or ganglia.

    		•
  • Q : Describe the term antibiotics Describe

    Describe in detail the term antibiotics?

    		•
  • Q : Departmentation by territory

    Departmentation by territory It is highly suitable for the enterprise whose activities are widely dispersed. For example, in the case of assembly plants or wholesali

    		•