A | B |
pedigree | chart that can help trace the phenotypes and genotypes in a family to determine whether people carry recessive alleles. |
karyotype | image of all of the chromosomes in a cell |
mutation | change in DNA sequence |
gene mutation | a change in a nitrogen base that affects a gene |
chromosomal mutation | a change in a whole chromosome, much bigger affect |
point mutation | mutation that involves a substitution of only ONE nucleotide |
frameshift mutation | mutation that involves the insertion or deletion of a nucleotide in the DNA sequence |
substitution | replacing one nucleotide (nitrogen base) with another resulting in a point mutation |
deletion | the removal of a nucleotide (nitrogen base) that results in a frameshift mutation |
insertion | the addition of a nucleotide (nitrogen base) that results in a frameshift mutation |
translocation | the exchanging of two parts of a gene/ nucleotide that result in a mutation |
restriction enzyme | enzyme that cuts DNA molecules at specific nucleotide sequences |
gel electrophoresis | method of separating various lengths of DNA strands by applying an electrical current to a gel |
restriction map | diagram that shows the lengths of fragments between restriction sites in the strand of DNA |
polymerase chain reaction (PCR) | method for increasing the quantity (amount) of DNA by seperating it into two strands and adding primers and enzymes |