Question

1. Which of the following is an example of cells undergoing mitosis and cytokinesis? a new embryo growing a tree producing new branches dead skin cells being replaced a wound healing over with a scar All of the above. 2. Cell division is used for all of the following EXCEPT replacing blood cells that have died. production of hormones. growth of a single cell into a baby. growth of a child into an adult. replacing skin cells separated by a paper cut. 3. Cellular differentiation, or cell specialization, results from the "turning off" of some genes and the "turning on" others the separation of stem cells from each other, so they do not know what their neighbors" are becoming cellular division; when cells divide by mitosis, the daughter cells are specialized the birth process; all the cells of a fetus differentiate by the time it is born fertilization of an egg; the fusion of the sperm and egg initiates cell specialization within minutes 4. A cell divides before properly completing mitosis. Which of the following would be a likely result? two perfectly normal cells one perfectly normal cell two smaller than normal cells two cells with either extra or missing chromosomes two cells with extra DNA and extra chromosomes

Answer 1

Answer 1) All of the above.

Because the mitosis and cytokiniesis are found in somatic cells which give rise to identical cells. These are found in growing embryo, tree Producing new branches,dwas skin cells being replaced and wound healing over skin.

Answer 2) production of hormone.

Because when genes are activated, then the production of hormone is occured in a cell. It is not linked with mitosis.

Answer 3) c is the right answer.

Cellular proliferation is a kind of cell division in which cell divide continuously and then there will differentiate and become specialised cell.

Answer 4) two perfectly normal cell

Mitosis is a kind of equational division in which two identical cells are produced which have same number of chromosomes.

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