Bird and insect wings are similar because they carry out the same type of function. However, structurally they are very different. They are examples of
O acquired characteristics
O homologous structures
O analogous structures
O convergent evolution

answer; polycythemia is the correct answer;

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: