Biology, 04.02.2020 15:46 tshegofatso92

Which of the following best compares the processes of mitosis and meiosis.
a. mitosis results in daughter cells through one division cycle while meiosis results in haploid gametes through two division cycles.
b. mitosis involves one division cycle and results in haploid gametes while meiosis consists of two division cycles and results in diploid daughter cells.
c. mitosis involves two cycles and results in haploid gametes while meiosis consists of one division cycle and results in haploid gametes.
d. mitosis involves two division cycles and results in haploid gametes while meiosis consists of one division cycle and results in diploid daughter cells.

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Answer from: strevino9178

Explanation:

All cells undergo division. They employ mitotic and meiotic division process. Mitosis is undergone by all cells while meiosis is peculiar to reproductive cells.

Mitosis is a type of cell division that results in two daughter cells which are identical to each other and the original cell that divided. They are identical in the sense that they have the same number of chromosomes and exact copies as the parent cell. Mitosis is used by organisms for growth and multiplication. Hence it is called DUPLICATION division. It is a one division cycle that separates sister chromatids into two identical cells.

Meiosis, on the other hand, is a cell division that results in four daughter cells (gametes) which have their chromosomal number reduced by half. During meiosis, a two step division occurs viz: Meiosis I and Meiosis II.

Meiosis I involves the separation of homologous pair of chromosomes (similar but non-identical chromosomes received from each parent) into two cells. These cells are now haploid (n).

Meiosis II, which is similar to mitosis, involves the separation of sister chromatids (duplicated chromosome). Hence in total, 4 daughter cells with as half as many chromosomes as the parent cell results.

N.B: Meiosis is used by reproductive cells to produce gametes. These gametes must be haploid in order to ensure that after fertilization with another haploid gamete (opposite), a diploid organism results.

Answer from: Quest

Hunting in the darksome fish rely on senses beyond sight. in the darkness of the marianas trench, a fish called the rattail has an extremely sensitive sense of smell. the fish uses scent, rather than sight, to steer toward food. once it's near food, the rattail uses a special organ on the bottom of its chin to guide itself by feel.marine snowone staple of the deep sea diet is "marine snow," flakes of organic, edible substances that sink down from the upper ocean. animals at the ocean's bottom find sustenance in everything from the bodies of dead creatures to fecal matter. marine snow is diverse enough to support numerous species. for instance, several species of snails and worms feed exclusively on deceased whales.microorganismsthe deep sea is an intricate ecosystem, and even the ocean floor itself plays a part. hydrothermal vents are cracks in the sea floor where erupting magma mixes with ocean water to produce plumes of hot, sulfur-rich chemicals. some microbes can use these chemicals for energy, sustaining their existence and that of the animals who depend on their roles in the deep sea food chain.

Answer from: Quest

d. planting trees

the trees take in carbon to make oxygen.

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Which of the following best compares the processes of mitosis and meiosis.
a. mitosis results...