Although many cells go through both anaphase A and B motions, occasionally one motion takes precedence over the other. Poleward migration in anaphase requires the separation of the paired sister chromatids. The components that link the chromatids at the centromere are degraded by proteolysis, which causes chromatid separation.
Synapsis is the name given to this action. Crossing over happens during synapsis. DNA is transferred between two nonsister chromatids of a homologous pair of chromosomes during crossing over.
When nondisjunction occurs, the homologous or sister chromatids are drawn to one pole of the cell because the separation does not take place.
Therefore, One daughter cell would have more chromosomes than usual, and one sister chromatid would not split equally during the anaphase of mitosis.
Learn more about chromatids here:
#SPJ2
Answer:
plant cell
Explanation:
b)outlier data.
c)precise data.
d)summarized data
Answer:
The correct answer would be d) summarized data.
The summarized data gives the quick and easy description of all the observations obtained in the experiment.
The data can be summarized using different categories such as the total of the observations, frequency of the observations, mean value, variation et cetera.
It helps in deducing any conclusion from the observations such as the pattern of increase or decrease in the biological activity.
Flood is the result of the migration of the boundary between land and water. The spheres involved in flood are atmosphere, lithosphere and hydrosphere.
Spheres of earth - There are four levels of the Earth known as spheres that are hydrosphere (water), lithosphere (land), atmosphere (air) and biosphere (plants and animals).
Flood can have both positive and negative impact on the biospheres of the region. As the water drawn significantly, it destroy the habitats of the terrestrial organisms.
Positive impact is it can bring majority of the nutrients downstream which can help in better production of the crops.
Flood affects hydrosphere by destroying the water bodies such as rivers and lakes. Also it pollutes the water which makes it difficult for the survival of the marine or aquatic animals
So, the spheres involved in flood are atmosphere, lithosphere and hydrosphere.
To know more about spheres :
#SPJ3
Answer:
well... since i know everything, i would say that this is bad because people can drown and we do not want people to die before they can vote.