State the basic features of inheritance of traits.
✓
Answer
The basic features of inheritance of traits are as follows : $\rightarrow$ Traits have two or more alternative forms. $\rightarrow$ Specific factor (gene) controls specific trait. $\rightarrow$ One trait may be dominant over the other. e.g., character of free earlobe is dominant over the attached earlobe. $\rightarrow$ Traits may remain unexpressed i.e., recessive but they can be expressed in future generation without any change. $\rightarrow$ One alternative (allele) of a trait may express more often than the other. $\rightarrow$ For sexually reproducing organisms, both male and female parents contribute equal amount of genetic material to the offsprings. This means that each trait can be influenced by both paternal and maternal DNA.
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