Please enable JavaScript.
Coggle requires JavaScript to display documents.
Gene Expression and Regulation (Mutations, genetic diversity, and natural…
Gene Expression and Regulation
Mutations, genetic diversity, and natural selection
genetic diversity
number of genetic characteristics in the gene makeup of a species. Helps a species to adapt to changes in the environment.
natural selection
How a species adapts too and over comes changes in the environment. The best fit of a species will survive passing their genes to offspring, allowing the species to survive.
https://youtu.be/aTftyFboC_M
mutations
changes that occur in the DNA base pairs. Different types: Substitution, Insertion, and Deletion.
Recombinant DNA: DNA that has been combined from two different species. The DNA is then inserted into a host organism to produce different genetic combinations.
RNA and DNA structure
DNA: nucleotides; phosphate, deoxyribose sugar, and a nitrogen base
DNA: double-stranded
Nitrogen Bases: Adenine, Thymine (Uracil for RNA), Cytosine, and Guanine
RNA: nucelotides; phosphate, ribose sugar, and nitrogen bases
RNA: single-stranded
Mechanisms of Gene Expression
Transcription
Translation: tRNA codes anticodons for amino acid sequences that match mRNA codons to form a polypeptide chain
DNA replication:
https://www.youtube.com/watch?v=8kK2zwjRV0M
https://www.youtube.com/watch?v=10YWgqmAEsQ
Transcription:
https://www.khanacademy.org/science/biology/gene-expression-central-dogma/transcription-of-dna-into-rna/a/overview-of-transcription
RNA Processing
Cell Specialization
Generic cells that change into specific cells to accomplish certain tasks within the body . Most important in the development of embryos .
Biotechnology
PCR: making copies of DNA
Recombinant DNA:
Gel electrophoresis: electric current separates DNA fragments by size
