Answer:
Codominance involves A.) multiple alleles
B. Chloroplast
A chloroplast is an organelle found in the cells of green plants, it basically turns the plants green, animals do not have chloroplasts.
Crossing over at prophase I results in the linked genes (those on the same chromosome) becoming unlinked and separated. Prophase I is this first stage of meiosis, the chromosomes condense, form tetrads, and exchange DNA. The nucleolus and nuclear envelope disappear.
The united states banned the use of ddt because it was running from the farmers fields into rivers and the fish were absorbing the chemicals. Eagles and other birds would eat fish out of the rivers and because they were infected with the chemicals, the bird also was infected. When the birds would lay their eggs the shell would be really thin and they would sit on the eggs to warm them and the shell would break. This is the reason why the Bald Eagle became endangered.
The photo is showing human karyotype. Haploid=n, diploid=2n. The picture shown 23 pair of chromosome which mean n=23. Therefore, diploid number of this individual is 46.