For each of the following nitrogenous base sequences, write the complimentary sequence on the line provided. a) A – T – C – C – T – A – G – A – A – G – G – T
b) C – G – T – T – G – C – A – G – A – A – C – T
c) T – A – C – G – G – A – T – C – G – T – C – A

Answer questions from exploring further

How and why organisms are hierarchically classifies

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.