Inheritance of One Gene

We can understand this concept through one of Mendel’s experiments, where he crossed tall and dwarf pea plants to study the inheritance of one gene.

  • 1st Generation – He took one tall pea and one dwarf pea, as parents and got all tall peas, with no dwarf plants. 
  • 2nd Generation – In the next experiment, he took the seed of tall peas from the first generation and got a mix of dwarf and tall pea plants. 

Based on these observations, he proposed that both genes are passed down to generations in the form of alleles. He called these things as ‘factors’, Now we call them genes. When two parents are not similar, one of the gene traits is dominant while the other is recessive in a child. 

His observation on monohybrid crosses led to Principals or laws of Inheritance, we will discuss two in this article. 

Inheritance of One Gene Notes

We never wonder why Lion can give birth to Lions only, or why a bird can reproduce in the same species and no other species. Not everything is possible, Isn’t it?  Also, No human being look exactly identical, even with twins there are differences in every individual. Some siblings look similar while at the same time, some look really different. 

Have you ever thought about who causes all these differences? All these questions are answered in the branch of science named Genetics. In this article, we will know more about the Inheritance of one gene. 

Similar Reads

Introduction to Inheritance and Variation

Inheritance is understanding how fundamental trait is passed down from generation to generation. Variation refers to the differences that exist between individuals of the same species. It’s the raw material of evolution. Both Inheritance and Variation are the basic concepts of genetics and evolution....

The Story Behind Mendel’s Laws of Inheritance

Mendel’s laws of inheritance are a set of fundamental principles that describe how traits are passed down from one generation to the next. The story begins in the mid-19th century when Gregor Mendel, Father of genetics, a monk living in a monastery in Brno (now in the Czech Republic), conducted a series of experiments with pea plants....

Inheritance of One Gene

We can understand this concept through one of Mendel’s experiments, where he crossed tall and dwarf pea plants to study the inheritance of one gene....

Law of Segregation

This law is based on the fact that the gene does not show any blending on itself and both the characters of a parent are present. In some cases, one can be dominant or a mix of the characters. As in Mendel’s experiment, 1st generation showed all tall peas but the 2nd generation had both dwarf and tall peas....

Law of Dominance:

It states the effects on the Characters that are controlled by discrete units called factors and In a dissimilar pair of factors one member of the pair dominates (dominant) the other (recessive)....

FAQs on Mendel’s Laws of Inheritance

Q1. Mention the advantages of selecting a pea plant for the experiment by Mendel....

Contact Us