final review day 2. fission sexual or asexual …….. why? describe: parent cell doubles its dna...
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Fission
•Sexual or asexual …….. why?•Describe: parent cell doubles its DNA and splits into 2 daughter cells
•Sketch•Cloning? •Yes
Budding
•Description: baby grows off parent organism
•Sexual or asexual …..why?
•Sketch:•Cloning?•Yes…why?
Fertilization
•Describe: egg with ½ chromosomes is fertilized by sperm with ½ chromosomes
•Sketch and label
Fertilization
•Sexual or asexual and why?•Cloning?•No… why?•# chromosomes in gamete= 23
•# chromosomes in zygote= 46
Scientific Method
•Review on board with the question “Does wearing a helmet while riding a bike prevent brain injury?”
“Does wearing a helmet while riding a bike prevent brain
injury?”• Hypothesis: • Control:• Independent variable:• Dependent variable:
• Constants:
•Now try the one on the paper
Can she add fertilizer to some, and not
others?•NO!… why?•Can only have one variable at a time
•Discuss some constants