http://www.simpletruths.tv/store/movies.php?movie=fstr. Lesson 14b: Mitosis. Biology is the only subject in which multiplication is the same thing as division …. Making New Cells Making New DNA. Where it all began…. You start as a cell smaller than a period at the end of a sentence….
Lesson 14b: Mitosis
Biology is the only subject in which multiplication is the same thing as division…
Making New CellsMaking New DNA
You start as a cell smaller than a period at the end of a sentence…
And end up as a full grown adult with billions of cells!
the original fertilized egg has to divide…
die or are lost
G1 = Resting and Growth
S = DNA is replicated
G2 = Growth & Prep
M = Mitosis (cell division)
Coil DNA into compact chromosomes
Single DNA strand
Single DNA strand being duplicated
Two new DNA strands linked by centromere
making one doubled chromosome.
DNA in chromosomes
chromosomes are duplicated
Centromeres link chromosomes
4 single-stranded chromosomes
4 duplicated chromosomes
DNA is copied!
Chromosomes are condensed!
are lined up!
onion root tip
Virtual Lab 8 Mitosis in Plant Cells
Virtual Lab 9 Comparing Mitosis in Plant and Animal Cells
Draw, label and explain mitosis as shown on pages 246-247 in your text.