Blog

  YOU GOT THIS!!!! Put the following terms in the correct sequence of levels according to the biological hierarchy.  NOTE:  BIOSPHERE is at the top and ATOM placed at the bottom!!!!  

  How does the initial primary transcript (= pre-mRNA) in the nucleus of a eukaryotic cell compare to the functional mRNA that leaves the nucleus?  

  Given our current insight into what is happening at the molecular level… instead of the BIO103 ambiguous “unit of inheritance” definition for gene, which of the following statements is a BETTER description of a gene?  

  Regulation of gene expression is primarily done at the pre-transcriptional (i.e. chromatin modification) and/or transcriptional level.   Post-transcriptional mechanisms typically only play “supporting” roles.  

              When Thomas Hunt Morgan crossed red-eyed F1 generation flies to each other, the F2 generation included both red- and white-eyed flies, but all the white-eyed flies were male.  Which of these best explains Morgan’s result?  

Higher level autonomic control involves processing centers in medulla oblongata coordinating complex reflexes, contains centers and nuclei involved in many functions (salivation, swallowing, digestive secretions, peristalsis, urinary functions), and is regulated by the hypothalamus. 

  CH13 vocabulary (part 2)… match the term to the correct definition (hint: copied directly from quizlets!)  

  CH15 vocabulary (part 1)… match the term to the correct definition (hint: copied primarily from quizlets!)  

Use the figure to answer the following question (hint: pay attention to orientation)     Referring to the figure, what bases will be added as DNA REPLICATION proceeds on the bottom strand?  

  How does DNA replication work?     Experiment:  free nucleotides containing radioactive thymine (T) are added to media containing an actively dividing cell (…and the cell uses these radioactive thymines during the process of DNA replication!).    Which of the following outcomes would be seen after a single cell division?