Mutations And Natural Selection by Marcus Hautalahti https://padlet.com/marcus_hautalahti/afr5mxoyfux1 Made by Marcus and David en-us 2017-12-07 08:02:59 UTC 2024-11-25 19:49:39 UTC hello@padlet.com Mutations marcus_hautalahti https://padlet.com/marcus_hautalahti/afr5mxoyfux1/wish/214003347 Arise in the genome of an organism and change the nucleotide sequence. 

There are three types of mutations

Deletion 
Removal of nucleotides 

Insertion
Addition of nucleotides 

Chromosomal aberration  
Damage to DNA (X-rays, radiation) 

Substitution 
Nucleotides get substituted For others 

]]> 2017-12-07 08:07:02 UTC https://padlet.com/marcus_hautalahti/afr5mxoyfux1/wish/214003347 Natural selection marcus_hautalahti https://padlet.com/marcus_hautalahti/afr5mxoyfux1/wish/214003373 Key mechanism in evolution
The change of heritable traits (mutations) in a population over time.
These Variations occur randomly because of mutations. Some animals with these Variations become more successful than the ones without these traits and get to reproduce more often and efficiently. After some time the whole populations will posses these traits, this is called natural selection.



]]> 2017-12-07 08:07:10 UTC https://padlet.com/marcus_hautalahti/afr5mxoyfux1/wish/214003373 Sexual Reproduction marcus_hautalahti https://padlet.com/marcus_hautalahti/afr5mxoyfux1/wish/214003533 - Sexual reproduction is when two morphologically distinct animals fuse together and produce an offspring. The fusing involves a female's egg and the male's sperm. 

- In order to perform sexual reproduction, both males and females need to find a mate. To find a mate, the organism would need to perform different efforts to get the attention of the mate. This can involve fighting or dancing. 

- The human reproduction allows the child to get 23 chromosomes from the father and 23 chromosomes from the mother. This is because a human body contains 46 chromosomes and they are split during the meiosis. ¨

- A disability in the meiosis state is the world-leading cause of miscarriages. 

]]> 2017-12-07 08:07:54 UTC https://padlet.com/marcus_hautalahti/afr5mxoyfux1/wish/214003533 Random Orientation of Homogenous Chromosomes In Metaphase 1 of Meiosis 1 marcus_hautalahti https://padlet.com/marcus_hautalahti/afr5mxoyfux1/wish/214003566  In Meiosis, I members of homologous pairs separate during anaphase. The separation of the chromosomes is random so the genes that are added to the mate's genes are not specified. 




]]> 2017-12-07 08:08:02 UTC https://padlet.com/marcus_hautalahti/afr5mxoyfux1/wish/214003566