BIO201 Final Term Current Repeated MCQs and Questions

 Inter membrane pores for water are called...aquaporins  Function of G protein... transmit signals form cells  Mendel work on which plant...pasivum sativum  Power house organelles... Mitochondria  Function of ER... protein synthesis  When DNA damage which protein activate...p53 intiate cellular

responses

 Somatic mutations: Occur in somatic (body) cells & passed on to the daughter cells after mitosis but not passed on to the children.  Mast cells Release histamine when damaged  Histamine release from mast cells vascular permeability  All proteins synthesis initiates in the cytosol, (mitochondria & plastids),  tRNA Translates Nucleotide Language into AA Language  _ is removed during RNA maturation? Intron  activators consist how many domains? Multiple domains  what charge is on DNA? neutral  What will be mixture of DNA and proteins? Chromatin  Point mutation has base pair? Single  smad complex moved towards dash? Nucleus  There are 2 × 𝟏𝟎𝟏𝟐 lymphocytes in the human body, making the immune system comparable in cell mass to the liver or brain.  The B-Cells It is composed of four polypeptide chains 2 identical heavy chains & 2 identical light chains.  Autonomous Cell Growth In Cancer Cells  nucleus discovered by .. robert Brown  Human blood group discovered by ....karl landsteiner

 Mutation that cause no change .... silent mutation  Inhibitors that binds to a site other than active site of enzymes---

---- Non-competitive inhibitors

 MYC and the polymerase assemble on a specific DNA sequence and drive transcription of genes.  Condition in which cells have specific binding. Cell adhesion  Cyclin D and Cycline E produced in? G1 phase  An average cell can divide 50 times before it gets unhealthy  CML results from a chromosomal translocation between chromosome 9 and 22  Housekeeping genes are responsible for the routine metabolic functions (e.g. respiration).  TH1 cells mainly help activate macrophages and cytotoxic T

cells

 Prolactin stimulates breast cells to produce milk  After 30 cycles almost ----- number of copies are formed. 16

billion

 Lipids are....non soluble  Skin regenerate every -------? Two weeks

 Helices that are involved in against binding are __Helix 5  Beta blockers are involved in ___mimicking the function of a hormone.  DNA is highly ordered around positively charged -----? Histone

proteins

 PtK stands for ___Protein tyrosine kinases  Prosthetic group example is........copper  Unit of genetic map......centimogon  Mitosis sequence..... Prophase to anaphase  May 2014 the media reported on a blood transfusion that Contains a protein called__GDF11 to possibly cure Alzheimer’s disease and heart Disease.  Even in the absence of antigen humans can make More than 1012 Different antibody molecules.