Answer:
E) Either anaphase I or II
Explanation:
Failure of segregation of homologous chromosomes during anaphase I or failure of segregation of sister chromatids during anaphase II leads to the presence of the abnormal number of chromosomes in resultant gametes. In the given example, the egg mother cell with 48 chromosomes (24 pairs) would enter meiosis I but the failure of one pair of homologous chromosomes to segregate from each other followed by normal meiosis II would result in the formation of two gametes with one extra chromosome and two gametes with one less chromosome.
On the other hand, if the nondisjunction occurs at anaphase II of meiosis II, two normal gametes, one gamete with one extra chromosome and one gamete with one less chromosome will be formed. Therefore, nondisjunction at anaphase I or anaphase II would have resulted in the production of eggs with one extra chromosome.
Single unit structure easy to studying
Answer:
It is possible for two of the same species to have differences in their DNA.
Answer:
plasma, red blood cells, white blood cells, and platelets.
Explanation:
plasma is the colorless fluid part of blood, lymph, or milk, in which corpuscles or fat globules are suspended. red blood cells have a high concentration of hemoglobin, a protein that binds to oxygen from the lungs and that gives blood its red color. white blood cells are part of the body's immune system. They help the body fight infection and other diseases. platelets are pieces of very large cells in the bone marrow called megakaryocytes. they help form blood clots to slow or stop bleeding and to help wounds heal.
