mitosis Flashcards
where are chromosomes found and what are they made out of
they are made out of dna and are found in the nucleus
how many chromosomes do human cells contain
23 pairs
which chromosomes do body cells contain
a short and long each paired
chromosomes carry g- which determine our f-
carry genes which determine our features
what happens in first stage of mitosis
2 points
cells replicates to form two copies of each chromosome
the cell also grows and copies its internal structures such as ribosomes and mitochondria
second stage - m-
2 ps
mitosis takes place
one set of chromosomes is pulled to each end of the cell
the nucleus divides too
final stage
cytoplasm and cell membrane divide to form two identical daughter cells
why is mitosis essential
3 points
essential for growth and development of multicellular organisms
takes place when an organism repairs itself
happens during asexual reproduction