Answer:
In anaphase II the cells are haploid and sister chromatids separate and in mitotic anaphase he cells are diploid and sister chromatids separate
Explanation:
Stem cells arise from the inner mass of the cell
Signalling factors trigger differentiation in stem cells
Genes that lead to the production of undifferentiated blood cells are activated
Signalling factors cause undifferentiated blood cells to produce red blood cells
Explanation:
Red blood cells are formed in the bone marrow. The precursor to the RBC is stem cell which is undifferentiated and pluripotent. The stem cell gets differentiated to form immature RBCs. Immature RBC then gets divided and becomes mature. Stem cell giving rise to RBC is called Haemoctytoblast. The process of erythropoiesis takes 2 days to form new red blood cells
Answer Digestion, sequence by which food is broken down and chemically converted so that it can be absorbed by the cells of an organism and used to maintain vital bodily functions.
Explanation:
Multiple sclerosis is a condition where the myelin sheath hardens; disrupts the flow of information through the neurons. Myelin sheath is a layer of fatty cells which helps in the transmission of nerves impulses along the axon by insulating it. It is an outgrowth of a type of glial cell which is formed by a process called myelination or myelinogenesis.
Therefore, the correct answer is Myelin sheath.
Answer:
Cell division is necessary for an organism to repair damaged tissues, heal and regenerate, grow organisms, and reproduce.
Explanation:
