The gene which decides the appearance of an organism even in the presence of an alternative gene is dominant....nd the gene which can decide the appearance of an organism only in the presence of another identical gene is recessive....

Dominant and Recessive Traits

Genetics is the study of heredity and the variation of inherited traits. Every organism has a unique set of characteristics that are determined by its genes. Genes are segments of DNA that contain the instructions for the development and function of an organism. Traits are the observable characteristics that result from the expression of these genes. These traits can be either dominant or recessive.

Dominant Traits

Dominant traits are traits that are always expressed when present in an individual's genetic makeup. These traits are dominant because they are stronger than their recessive counterparts. In other words, if an individual has one copy of a dominant gene, they will express the dominant trait. Dominant traits can be expressed in both homozygous and heterozygous individuals.

Examples of dominant traits include:

- Brown eyes
- Widows peak hairline
- Cleft chin
- Dimples
- Freckles
- Short fingers
- Curly hair

Recessive Traits

Recessive traits are traits that are only expressed when both copies of a gene are present in an individual's genetic makeup. These traits are recessive because they are weaker than their dominant counterparts. In other words, if an individual has one copy of a dominant gene and one copy of a recessive gene, they will express the dominant trait. Recessive traits can only be expressed in homozygous individuals.

Examples of recessive traits include:

- Blue eyes
- Straight hairline
- No cleft chin
- No dimples
- No freckles
- Long fingers
- Straight hair

Conclusion

In summary, dominant and recessive traits are two types of genetic traits that are inherited from parents to offspring. Dominant traits are always expressed when present, while recessive traits are only expressed when both copies of a gene are present. Understanding these traits is important in the study of genetics and can help predict the likelihood of certain traits being expressed in offspring.