Genetics HBSS Research Paper 2022

Running head: GENETICS
Genetics
Name of the student:
Name of the University:
Author’s note

1GENETICS
Darwin postulates:
Darwin postulates were as follows:
 All individuals in a population have unique variations
 Some of these variations are transferred to the offspring
 Favorable variations are those that reproduce the most and have greater chance of
survival (Richards, 2016).
The above theory explains evolution by natural selection by showing that organisms which
are able to adapt to the environment and survive and reproduce are able create new organisms.
Due to the process of natural selection, those with favorable traits have greater probability to
reproduce and create new offspring with the same trait. However, the Darwin’s theory of natural
selection was threatened by the following three conceptual difficulties:
1. Many typical features of different species hindered their survival instead of helping them
to survive. This relates to the impact of non-fitness on natural selection
2. The second problem was regarding the lack of clarity regarding the mechanism of
inheritance. He failed to explained the mechanism by which the adaptive variations were
transferred to the offspring
3. The third problem was the issue of altruism as the theory revealed as many organism do
not have behave in their self-interest to survive (Donnelly et al. 2016).
Gregor Mendel’s work:
The work of Gregor Mendel is significant as he gave answer to the mechanism of
inheritance which was not answered by Darwin. One major gap in the Darwin’s theory of natural
selection was the lack of explanation regarding the mechanism of inheritance. Mendel explained