mutation of a wild type gene
a gene that is carried on the X or Y chromosome.
Genes with loci on the same chromosome and they don't sort independently
offspring with a phenotype that matches one of the parental phenotypes
offspring with phenotypes different from either parent
an ordered list of the genetic loci along a particular chromosome
genetic map that shows the location of genes on a chromosome
caused by a sex-linked recessive allele; characterized by progressive weakening and a loss of muscle tissue.
Duchenne Muscular Dystrophy
Inactivated X chromosome
error in meiosis in which homologous chromosomes fail to separate
a cell that has only one copy of a particular chromosome
condition in which an organism has extra sets of chromosomes
part of the chromosome is repeated
change to a chromosome in which a fragment of the original chromosome is reversed
The process in which infection by a virus results in DNA being transferred from one bacterium to another
A disease resulting from having an extra chromosome 21, characterized by mental retardation and heart and respiratory defects.
variation in phenotype depends on whether an allele is inherited from the male or female parent
A genetic disorder involving an abnormality in the X chromosome, which becomes constricted and often breaks.
Fragile X Syndrome
sex-linked recessive disorder defined by the absence of one or more proteins required for blood clotting
viruses that infect bacteria
two strands of DNA
the spot where DNA replication starts
origin of replication
y shaped region where the DNA starts to enlongate
Adds complementry nucleotides to the leading strand
going towards the replication fork and in 5' direction
an enlogment strand away from the replication fork, going towards 3'
Segments of the lagging strand
Joins the okazaki fragments forming a new DNA strand
an enzyme that can start a new RNA chain and joins RNA nucleotoids together
Unwinds and opens DNA molecules
a segment of damaged dna is cut out by a nuclease and the gap is the filled with nucleotids
catalyzes the lengthening of telomeres in eukaryotes germ cell
Repeated DNA sequences at the ends of eukaryotic chromosomes
The resulting chromosome from one abnormal chromosome and on normal gamete replicating
If a chomosome is present in triplicate
Fragment missing a centromere is deleted
Moves a segment from one chromosome to a nonhomoglous one