Compare and contrast the processes of mitosis and meiosis.

Mitosis
occurs in reproductive cells
needed for
growth, replacement repair and asexual reproduction
same chromosome number is present in daughter cells
two daughter cells are formed
a single nuclear division takes place after chromosome duplication
identical chromosomes are present in the daughter cells
meiosis
occurs in somatic cells
needed for
sexual reproduction.
half number of chromosomes are present in daughter cells
4 daughter cells are formed
two nuclear divisions
identity of chromosomes is randomly assorted

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.

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