--%>
Assignment Help - homework help

biology

Determine sequence weights for the sequences ACTA, ACTT, CGTT, and AGAT in problem 1 by using Thompson, Higgins, and Gibson method a) compute pairwise distances between sequences b) build phylogenetic the tree using UPGMA method c) derive sequence weights Problem 2 We assumed additive property when constructed UPGMA tree in problem 1. What is limitation of this assumption? Problem 3 The sequence of gene "B3" was used to blast against swissprot protein database. The query returned five significant hits to other proteins denoted by B1,B2,B4, B5, and H in the figure below. B1-B5 are five bacterial species, while the species H represents Homo sapiens. No other mammalian species have shown presence of protein that is similar to B3. Explain the presence of this gene in humans. 851_sequence-weight.png Problem 4 Describe technical and theoretical challenges associated with building phylogenetic trees.

   Related Questions in Biology

  • Q : Function of erythrocytes Specify the

    Specify the function of erythrocytes and its several names by which is known?

    		•
  • Q : Hypophysis-ovaries endocrine axis Does

    Does hypophysis-ovaries endocrine axis work in the same way during the pregnancy as in the non-pregnant women? In case the pregnancy does not occur, how does another menstrual cycle start?

    		•
  • Q : Microfilaments are made up of which

    Microfilaments are made up of which substance? And also write down the properties of these elements that give motility to cells?

    		•
  • Q : Significance of mitosis for the

    What is the significance of mitosis for the embryonic growth?

    		•
  • Q : Explain Electronic Data Interchange or

    Electronic Data Interchange (EDI): The predecessor to electronic commerce, EDI has been appropriate only for big North American and European corporations and banks. Firms employing EDI are interconnected via a global computer network, independent of i

    		•
  • Q : Describe the types of muscle tissues

    Describe the types of muscle tissues? State the morphological features which distinguish those types?

    		•
  • Q : Describe pioneer species Describe

    Describe briefly about pioneer species? And also write down the role of pioneer species?

    		•
  • Q : Define Emerging Markets Emerging

    Emerging Markets: These markets are broadly stated as nations in the process of quick growth and industrialization. Often times, such nations are transitioning to an open market economy with a rising working age population. The word itself was coined

    		•
  • Q : Process of Communication - Organization

    It is concerned with sharing and understanding of information. It consists of several steps explained below: 1)     Develop an idea:  the first step is to develop an idea that the sender wishes to transmit. This is the key step, because unless the

    		•
  • Q : Significance of the emergence of the

    Specify the evolutionary significance of the emergence of the seeds in plant kingdom?

    		•