Download presentation
Presentation is loading. Please wait.
Published byAlexia Bates Modified over 9 years ago
1
Biodiversity
2
Genetic Mutations Change in base pairs Affect sequence May affect protein production Can alter genetic makeup within species
3
Point Mutations Small-scale mutations 4 main types: –Substitution –Insertion –Deletion –Inversion
4
Large-Scale Mutation Amplified results Multiple nucleotides affected –Regions/genes affected Duplication Deletion Frame shift Translocation
7
Causes of Genetic Mutation Spontaneous –DNA replication Induced –Mutagens –Chemical –Radiation
8
Good Mutations Majority are neutral mutations Survival of the fittest Lactose intolerant Sickle-cell anemia
9
Human Genome Project Over 200 scientists –Coding and non-coding regions <2% proteins 24% introns ~75% DNA –>50% non-functional
10
Repeating Sequences Variable number tandem repeats (VNTRs) aka microsatellites Telomeres Long interspersed nuclear elements (LINES) Short interspersed nuclear elements (SINES) –Transposons –Pseudogene Dolphins
11
Homework Page 345 # 1, 2, 6 Page 349 # 1, 3, 5, 8
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.