cell division flachcards Flashcards
what is the smallest unit of life
cell
what is the biggest organelle of a eukaryotic cell
nucleus
what is found in the nucleus
DNA
what is DNA and what does it stand for
DNA contains genetic material and it stands for DEOXY RIBO NUCLEIC ACID
what does DNA look like inside a nucleus
DNA look like a double stranded of ladder and jumble up a ball of yarn
what is genetic material
genetic material are genes or traits that can be passed on from parents to offspring
how does DNA grow and develop and reproduce
DNA reproduce though stages called interphase and mitosis
what happens during interphase
interphase is when DNA develops and goes through replication
what does replication mean
copy or duplicate
what happens during replication
DNA replicates itself and wrap up tightly and neatly into chromatid
what is a chromatid
a DNA that is neatly wrap up two chromatin/singular: chromatids
what is a chromosome
when dna wraps around a protein it is called a cromosome
how many chromosomes do humans have
humans have 46 cromosomes
how many chromosomes does each parent pass on to their offspring
23 chromosomes from each parent
each segment of DNA is known as a what
gene
what does a gene contain
genetic traits
what happens during mitosis
during mitosis chromosomes go through 5 phases
what are the 5 phases of mitosis
ph 1 prophase ph2 metaphase ph 3 anaphase ph 4 telophase ph 5 cytokinesis
what happens during each phase
phase 1 prophase-chromosomes apppesr
what happens during each phase
phase 2 metaphase-chromosomes line up
what happens during each phase
phase 3 anaphase-chromosomes separate
what happens during each phase
phase 4 telophase-chromosomes pinch
what happens during each phase
phase 5 cytokinsis-two new daughter cells form
how many chromosomes do human sex cells have
23 chromosomes in each sex cells (egg or sperm)
