a gene locus allele( gene, locus, allele ) is a heritable factor that consists of the length of DNA and influences a specific characteristic
the occupies a specific position on the
❌ are different forms of the same gene that occupy the same locus
alleles differ from only one or a few bases
what are single nucleotide polymorphisms?
positions in a gene where there is only one base
positions in a gene where more than one bases are present
a specific position on the chromosome
different forms of the same gene that occupy the same locus
are random changes to the base sequence of DNA
what is an example of a mutation?
sickle cell anemia
malaria
Klinefelter's disease
Turner's disease
is caused by a mutation in the polypeptide in
what happens to the red blood cells once they become sickle cells?
they change shape, become trapped in the capillaries, and reduce blood flow
the change shape, become trapped in the arteries, and reduce blood pressure
they are heritable factors that consist of the length of DNA and influence a specific characteristic
they are specific positions on a chromosome
a mutation gene genome( mutation, gene, genome ) is the entire base sequence of each of the DNA molecules in an organism
where is the genome located in bacteria/prokaryotes?
in nuclear chromosomes plus DNA in mitochondria and chloroplasts
in circular chromosomes plus and plasmids present
in nuclear chromosomes plus DNA in mitochondria
in circular chromosomes plus DNA in mitochondria and alleles
check off the structural and genetic characteristics of a prokaryote:
double copy of each gene
single copy of each gene
have plasmids
has zero plasmids
has extra DNA molecules that are useful, but not necessary
check of the structural and genetic characteristics of eukaryotes:
has both dna and proteins
has both dna and genomes
dna is single and long and wrapped around histones
