Identify the causes of genetic variation as associated either with Mendel's principles or with mutation. Genetic variation in successive generations can be caused either by natural occurrences, which can be explained by Mendelian genetics, or by mutation. ITEM BANK: Amplification Co-dominance Deletion Incomplete Dominance Independent assortment Insertion Law of dominance Law of segregation Nondisjunction Radiation Sex linked traits Substitution Translocation Virus

Mendelian or Mutation

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'