Page 2 - 3-Home Assignment-II (Activity-9- Free & attached Earlobes- Accumulation of Variation
P. 2

2.   Calculate the percentage of both types of students.




















           Observation Table:
            Sl No                    Name of student                 Widow’s peak/ Straight hairline

            1.
            2.
            3.
            4.
            5.

           Calculation of % =  No. of students with Widow’s Peak x100
                                                      Total Students

           Inference:
           Having Widow’s peak is a dominant trait seen in human beings.





                                               SAI International School
                                                   Subject- Biology
                                         Class room Activity Work Sheet- 9

           Name:                                         Admn. No:                       Class/Sec:
           Date:    _________________

               1.  Name few other variations seen in humans other than free and attached earlobes.

               .…………………………………………………………………………………………………….

               ……………………………………………………………………………………………………..
               2.  What is variation?
                ……………………………………………………………………………………………………..

               ……………………………………………………………………………………………………….
               3.  How are traits inherited from one generation to other?
               ………………………………………………………………………………………………………

               ………………………………………………………………………………………………………
   1   2   3