cell division Flashcards
(20 cards)
what is the smallest unit of life
cell
what is the biggest organelle of a eukaryotic cell
nucleus
what is found in a nucleus
DNA
what is DNA and what does it stand for
DEOXYRIBONUCLEIC ACID
What does DNA look like inside a nucleus
Looks like a double stranded ladder
what is genetic material
genetic material are genes or traits that can be passed on from parents to off spring
how does DNA grow and develop and reproduce
they reproduce through stages called INTERPHASE AND MITOSIS
what happens during INTERPHASE
when DNA develops and goes through replication
What does REPLICATION mean
copy or duplicate
what happens during replication
DNA replicates itself and wraps up tightly and neatly into the chromatid
what is a chromatid
DNA that is neatly wrap up TWO CHROMATIN/singular: Chromatids
What is a chromosome
when DNA wraps around a protein
how many chromosomes do humans have?
humans have 46 chromosomes
how many chromosomes does each parent have pass on to their off spring
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 ph3 ANAPHASE ph4 TELOPHASE ph5 CYTOKNESIS
what happens during each phase?
phase 1 prophase- chromosomes appear
what happens during each phase?
phase 2 METAPAHSE- chromosomes line up
