Introduction to Heredity and the Environment
                        The ANSWERS

1.   E N V I R O N M E N T A L  factors often interacts with G E N E S   (Fig. 1)
      in the development and expression of   I N H E R I T E D  traits. 
2.   Some common environmental factors which can influence how genes express themselves are:
      a.   Amount of  S U N L I G H  T                                           (Fig. 2)     
      b.   T E M P E R A T U R E                                                  (Fig. 3)
      c.   Amount of  P R E C I P I T A T I O N                            (Fig. 4)
      d.   V I T A M I N S  and  M I N E R A L S  in your diet      (Fig. 5)
      e.   Acidity or Alkalinity measured in units of  p H                   (Fig. 6)

3.   We don’t actually inherit many P H Y S I C A L  characteristics.  We inherit only the genetic
      possibilities for them.  The environment affects if certain genes are  E X P R E S S E D and
      the degree to which they are expressed..