Unit 14: Genes & Genomes
Chromosomes carry genes in a linear sequence that is shared by members of a species.
A gene is a heritable factor that consists of a length of DNA and influences a specific characteristic.
A gene occupies a specific position on a chromosome.
The genome is the whole of the genetic information of an organism
The various specific forms of a gene are alleles.
Alleles differ from each other by one or only a few bases.
New alleles are formed by mutation.
Radiation and mutagenic chemicals increase the mutation rate and can cause genetic diseases and cancer.
Consequences of radiation after nuclear bombing of Hiroshima and accident at Chernobyl .
The entire base sequence of human genes was sequenced in the Human Genome Project
Use of nucleotides containing dideoxyrubonucleic acid to stop DNA replication in preparation of samples for base sequencing
Developments in scientific research follow improvements in technology-gene sequencers are used for the sequencing of genes.
Use of databases to identify the focus of a human gene and its polypeptide product.
Comparison of the number of genes in humans with other species.
Use of a database to determine differences in the base sequence of a gene in two species.
Developments in scientific research follow improvements in computing- the use of commuters has enabled scientists to make advances in bioinformatics applications such as locating genes within genomes and identifying conserved sequences.
Newest Human Genome Tally Reading
Analyzing Gene Function Reading
What is a Gene Reading
Smallest Genome Reading
Largest Genome Reading
Largest Animal Genome Reading
Telling Jewels From Junk in DNA Reading
Cystic Fibrosis Video
Huntington's Disease Video
Sickle Cell Anemia Video
Blood Groups Video
Formation of Alleles Notes
Effects of Mutations Notes
Mutations You Want Reading
HGP and DNA Sequencing
DNA Sequencing Notes
Bioinformatics & Sequence Alignment Notes
Final Knowledge Inventory