MENDEL'S LAWS

Mendel's Laws & Neural Basis of Emotion

Mendel's Laws & Neural Basis of Emotion

Mendel's Laws of Heredity

Introduction

Mendel is considered as the father of genetics; he discovered several things relating to heredity. Because of his studies and experiments with peas, genetics has advanced and today we have a plethora of articles and research in these areas that are useful for the understanding of life. Mendel was fortunate to have, in his own monastery, with material for his experiments. He began his work studying bees, collecting queens of all races, with carrying out different types of crosses. Between 1856 and 1863, he performed experiments on the hybridization of plants. He worked over 28,000 plants odorous variants or pea, seven pairs by analyzing in detail the characteristics and the plant seed: the shape of the seed, the colour of the cotyledons, the shape of the sheath, colour immature sheath, the position of the flowers, the flower colour and length of stem.

Mendel's laws explain and predict how they will be the characteristics of a new individual, based on the features present in their parents and grandparents. The characters are inherited from parents to children, but not always directly, since they can be dominant or recessive. The dominant characters always manifest in all generations, but can remain dormant recessive traits, without disappearing, to 'arise and manifest in later generations. In his first law, he states that if two pure breeds are crossed for a given character, the descendants of the first generation are all equal to each other and equal (in phenotype) to one parent. Mendel's second law or the law of segregation sets the recessive traits, crossing two purebreds, are hidden in the first generation; reappear in the second in proportion of one to three dominant characters about. The individuals of the second generation resulting from the first-generation hybrids are phenol-typically different from each other, this variation is explained by the segregation of alleles responsible for these characters, which at first found together in the hybrid and then split between different gametes. Mendel's third law or the law of the independence of characters sets the characters are independent and combined at random. In the transmission of two or more characters, each pair of allelic controlling a character is transmitted independently of any other pair of alleles that control another character in the second generation, combining in all possible ways.

Background

The year 1856, marks the beginning of Mendel for a period of intense satisfaction. Strangely, the first recognition of scientific value he receives from an area where there is no longer any partner today meteorology. It is however dedicated, with excellent results and great perseverance, almost to the last days of his life. During the first 34 years of his life, luck has little to Mendel smiled. Finally manifests itself in the character selection pea varieties that wish to study during his hybridization experiments: Unlike other characters are not chosen character through at their intersection. It is a widespread misconception to assume that the uniformity of ...