Answer:
Pulling apart or separation of sister chromatids
Explanation:
Meiosis is a type of cell division that results in four daughter cells with each having half number of chromosomes as the parent cell. It is the cell division that leads to formation of gametes to enable sexual reproduction. Division occurs twice during meiosis because before the two halves of a duplicated chromosome called sister chromatids separate, it still needs to separate homologous chromosome, which is a similar but non-identical pair of chromosome received from both parents. Hence, meiosis occurs in a two step division process i.e. Meiosis I and Meiosis II.
Meiosis II is the mitotic division of each of the haploid cells produced in meiosis I. Note that, homologous chromosomes separate in anaphase I of meiosis I, and further undergoes cytokinesis (division of cytoplasm) to produce two haploid (reduced number of chromosomes) daughter cells.
During anaphase of meiosis II, the individual chromosomes (sister chromatids) separate at the centromeres (point of attachment between two sister chromatids). The separated chromosomes are pulled apart towards each pole of the cell by the spindle fibres.
Answer:
Metaphase
Explanation:
Metaphase is the phase of mitosis that starts with complete disintegration of nuclear envelop. It is marked by attachment of spindle fibers to the kinetochores of chromosomes and movement of chromosomes to the middle of the cell, that is, equator. Chromosomes are aligned along center of the cell through spindle fibres .
Answer:
on the red blood cell membrane
The antibodies related to the ABO blood group are located in the blood plasma. They react with the corresponding antigens present on the surface of red blood cells. The type of antigens and antibodies vary depending on the ABO blood type of an individual.
The antibodies related to the ABO blood group are located in the plasma of our blood. These antibodies respond to the ABO blood group antigens that are present on the surface of red blood cells (erythrocytes). If an individual has type A blood, they will have A antigens on the surface of their red blood cells and anti-B antibodies in the plasma. Conversely, an individual with type B blood will have B antigens on their red blood cells and anti-A antibodies in their plasma.
Those with type AB blood carry both A and B antigens on their red blood cells but do not produce any antibodies against A or B in their plasma. Lastly, individuals with type O blood do not have any antigens on their red blood cells, but they produce both anti-A and anti-B antibodies in their plasma. This system is crucial to know for blood transfusion procedures as mixing incompatible blood types can result in a dangerous immune response.
#SPJ11
It can cause lipids to line the wall of blood vessels and lead to heart disease