Give a short answer to the question given below:
The type of ear lobes present in a family consisting of 2 children – Rahul, Nisha and their parents, are similiar as below pic. Execpt rahul everyone had free ear lobe.
Excited by his observation of different types of ear lobes present in his family, Rahul conducted a survey of the type of ear lobes found in his classmates. He found two types of ear lobes in his classmates as per the frequency given below:
Excited by his observation of different types of ear lobes present in his family, Rahul conducted a survey of the type of ear lobes found in his classmates. He found two types of ear lobes in his classmates as per the frequency given below:
| Sex | Free | Attatched |
| Male | 36 | 14 |
| Female | 31 | 19 |
On the basis of above data answer the following questions.
a. Which of the two characteristics - ‘free ear lobe’ or ‘attached ear lobe’ appears to be dominant in this case? Why?
b. Is the inheritance of the free ear lobe linked with sex of the individual? Give reason for your answer.