Final Study Guide Part IV Flashcards
Transcription
DNA polymerase used to produce mRNA
Translation
Protein produced from mRNA
Where in the cell does transcription and translation cover?
Transcription— nucleus
Translation— cytoplasm
Function of mRNA
Contains a copy of the genetic info in a gene and carries it to the ribosomes
Function of tRNA
Reads info on mRNA and translates it to the proper amino acid
Function of rRNA
Provides physical structure
Point mutation
Only one nucleotide is altered
Frameshift mutation
All codons are changed from the mutation onward
Autosomal trait
Traits not linked to sex chromosomes
Sex linked traits
Traits found in the X and Y chromosomes
Incomplete dominance
Presents as a blending of traits
Codominance
When no allele is dominant over another (blood types)
Homozygous dominant
When the genotype features two of the dominant alleles
Phenotype will show the dominant trait
Homozygous recessive
When the genotype features two of the recessive alleles
Phenotype will show the recessive trait
Heterozygous
Heterozygous is when a genotype contains two different alleles
Phenotype will feature the dominant trait
Difference between natural and artificial selection
Artificial selection is when humans choose features that best fit their intended use and only allow organisms with those traits to reproduce
In natural selection the environment determines which individuals are most fit to survive and reproduce
How is a GMO altered?
It has DNA from two different sources that have been recombined
Characteristics used when differentiating animals from one another
Body symmetry Segmentation Appendages Body plan Skeleton
Difference btw plant and animal cells
Plant cells have a central vacuole that stores water and a cell wall that prevents the cell from absorbing too much water and bursting.
Animal cells do not have a vacuole or cell wall
Domains archaea
Unicellular organisms that live in extreme environments
Domain eukarya
Broken down into 4 groups which include protists, fungi, animalia and plantae
Multicellular and can be heterotrophs or autotrophs
Domain bacteria
Unicellular and found almost everywhere
Can be harmful or beneficial
Difference between the eukaryotic kingdoms
Animalia are multicellular heterotrophs
Plantae are multicellular autotrophs
Fungi are multicellular heterotrophs who digest externally
Protists are uni or multicellular auto or heterotrophs
What is the most general level of classification
Species
Most specific level of classification
Domaine