mitosis Flashcards

1
Q

where are chromosomes found and what are they made out of

A

they are made out of dna and are found in the nucleus

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1
Q

how many chromosomes do human cells contain

A

23 pairs

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2
Q

which chromosomes do body cells contain

A

a short and long each paired

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3
Q

chromosomes carry g- which determine our f-

A

carry genes which determine our features

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4
Q

what happens in first stage of mitosis
2 points

A

cells replicates to form two copies of each chromosome
the cell also grows and copies its internal structures such as ribosomes and mitochondria

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5
Q

second stage - m-
2 ps

A

mitosis takes place
one set of chromosomes is pulled to each end of the cell
the nucleus divides too

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6
Q

final stage

A

cytoplasm and cell membrane divide to form two identical daughter cells

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7
Q

why is mitosis essential
3 points

A

essential for growth and development of multicellular organisms
takes place when an organism repairs itself
happens during asexual reproduction

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