Gene Inheritance
Describing theories
TASK 1(P1)
Introduction
The theory I have chosen to discuss is the theory of inheritance, which is attributed largely to Gregor Mendel who lived from 1822 to 1884 and was considered to be a mathematical scientist who introduced the science of genetics.
Observation
During the period of 1858 to 1866, Mendel observed the different characteristics that where inherited by living creatures. He done this by breading garden peas in his monastery garden and analyzing the offspring of these mating.
Construction of hypothesis
From his observations Mendel was able to construct a hypothesis which included the following idea; • Organisms posses factors which control given characteristics • These characteristics are inherited from the organisms parents, one from each • Each is transmitted from one generation to the next as a discrete, unchanging unit • Mendels hypothesis also included his rule of segregation, which stated that on formation of the gametes, the factors separate and are distributed as units to each gamete. • Finally, he also observed that organism that posses two unlike factors for a characteristics, one may be expressed to the total exclusion of the other (dominant vs recessive).
Mendel went on to publish his paper ‘Experiments on Plant Hybridization’ in 1866 in ‘Proceedings of the Natural History Society of Brünn’ and was seen as a paper about hybridization rather than inheritance.
Initially, it was criticised by the public, however, it was not until the 20th century that it was discovered that Mendel’s theory was more or less correct.
Experimentation and analysis of data
Mendels constructed his hypothesis in a time where the technology available was limited; however, he was still able to sufficiently test his theory with what little was available to him in his lifetime.
During his initial experiments, Mendel crossed a pure-breeding round-seeded variety with a pure-breeding wrinkled seed
TASK 1(P1)
Introduction
The theory I have chosen to discuss is the theory of inheritance, which is attributed largely to Gregor Mendel who lived from 1822 to 1884 and was considered to be a mathematical scientist who introduced the science of genetics.
Observation
During the period of 1858 to 1866, Mendel observed the different characteristics that where inherited by living creatures. He done this by breading garden peas in his monastery garden and analyzing the offspring of these mating.
Construction of hypothesis
From his observations Mendel was able to construct a hypothesis which included the following idea; • Organisms posses factors which control given characteristics • These characteristics are inherited from the organisms parents, one from each • Each is transmitted from one generation to the next as a discrete, unchanging unit • Mendels hypothesis also included his rule of segregation, which stated that on formation of the gametes, the factors separate and are distributed as units to each gamete. • Finally, he also observed that organism that posses two unlike factors for a characteristics, one may be expressed to the total exclusion of the other (dominant vs recessive).
Mendel went on to publish his paper ‘Experiments on Plant Hybridization’ in 1866 in ‘Proceedings of the Natural History Society of Brünn’ and was seen as a paper about hybridization rather than inheritance.
Initially, it was criticised by the public, however, it was not until the 20th century that it was discovered that Mendel’s theory was more or less correct.
Experimentation and analysis of data
Mendels constructed his hypothesis in a time where the technology available was limited; however, he was still able to sufficiently test his theory with what little was available to him in his lifetime.
During his initial experiments, Mendel crossed a pure-breeding round-seeded variety with a pure-breeding wrinkled seed