dev2011 2015 week 3 lecture review questions student

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DEV2011 Practical Week 3 Lecture Review Questions These questions relate to lecture material from Week 2. Complete the questions prior to your Practical Class in Week 3, where the answers will be reviewed. These are NOT assessed. Lecture 4) Evodevo and model organisms Question 1: Rate the following pairs in terms of evolutionary distance from closest to most distantly related (number them from 1 closest to 5 most distant) A. human and zebrafish (D. rerio) ____ B. human and yeast (S. cerevisiae) ____ C. human and mouse (M. musculus) ____ D. human and chicken (G. gallus) ____ E. human and roundworm (C. elegans) ____ Question 2: List 2 reasons why model organisms are useful in developmental biology 1. _______________________________________ 2. _______________________________________ Question 3: List 3 commonly used model organisms in developmental biology 1. ___________________ 2. ___________________ 3. ____________________ Question 4: If you wanted to study the development of the mammalian spinal column, which organism would you choose? 1) Yeast (S. cerevisiae) 2) Mouse (M. musculus) 3) Fruitfly (D. melanogaster) 4) Human (H. sapiens) 5) Any of the above Question 5: Why did you choose your answer above? _______________________________________________________________

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Developmental biology Monash University

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Page 1: DEV2011 2015 Week 3 Lecture Review Questions STUDENT

DEV2011  Practical  Week  3  Lecture  Review  Questions    These  questions  relate  to  lecture  material  from  Week  2.  Complete  the  questions  prior  to  your  Practical  Class  in  Week  3,  where  the  answers  will  be  reviewed.  These  are  NOT  assessed.    

Lecture  4)  Evo-­‐devo  and  model  organisms  Question  1:  Rate  the  following  pairs  in  terms  of  evolutionary  distance  from  closest  to  most  distantly  related  (number  them  from  1  closest  to  5  most  distant)  A.   human  and  zebrafish  (D.  rerio)       ____  B.   human  and  yeast  (S.  cerevisiae)     ____  C.   human  and    mouse  (M.  musculus)     ____  D.   human  and  chicken  (G.  gallus)     ____  E.     human  and  roundworm  (C.  elegans)     ____    Question  2:  List  2  reasons  why  model  organisms  are  useful  in  developmental  biology    1.  _______________________________________    2.  _______________________________________    Question  3:  List  3  commonly  used  model  organisms  in  developmental  biology    1.  ___________________  2.  ___________________  3.  ____________________      Question  4:    If  you  wanted  to  study  the  development  of  the  mammalian  spinal  column,  which  organism  would  you  choose?  1)  Yeast  (S.  cerevisiae)  2)  Mouse  (M.  musculus)  3)  Fruitfly  (D.  melanogaster)  4)  Human  (H.  sapiens)  5)  Any  of  the  above    Question  5:  Why  did  you  choose  your  answer  above?    _______________________________________________________________    

Page 2: DEV2011 2015 Week 3 Lecture Review Questions STUDENT

Lecture  5)  Fertilisation  and  embryo  cleavage    

Question  1:  In  humans,  how  long  does  it  take  from  fertilisation  to  hatching/implantation?    _________________________________________________________________    Question  2:  At  which  stage  or  number  of  cells  (blastomeres)  of  the  early  embryo  is  it  thought  that  cell  specialisation  has  begun,  in  other  words,  when  is  it  that  cells  of  the  embryo  are  no  longer  “equal”?  _____________________________    Question  3:  Which  term  describes  the  cells  produced  by  cleavage  of  the  zygote?      _______________________________________________________________    Question  4:    List  3  events  that  occur  once  the  sperm  head  contents  have  entered  the  egg    1._____________    2._______________  3._______________      Question  5:  What  is  the  “slow  block  to  polyspermy”?    _______________________________________________________________    

Page 3: DEV2011 2015 Week 3 Lecture Review Questions STUDENT

 

Lecture  6)  Embryo  and  gastrulation    Question  1:    Write  numbers  1  to  5  in  the  boxes  below  to  indicate  the  order  of  development  (earliest  to  latest):,  morula,  foetus,  blastocyst,  4-­‐cell  embryo,  fertilised  egg    1._____________    2._______________  3._______________    4._____________  5._________________    Question  2:    What  are  the  3  germ  layers?    1.__________________  2.  __________________  3._________________      Question  3:  From  the  3  germ  layers  you  have  listed  above,  list  one  cell  type  that  develops  from  that  germ  layer:    1.__________________  2.  __________________  3._________________      Question  4:    What  does  “nodal  flow”  do?    _________________________________________________________    Question  5:    What  is  suggested  to  be  the  most  important  event  in  your  life?    ___________________________________