Review for exam

Put levels of organization in order, with pictures

• DNA, cell, gene, nucleus, chromosome,

cellnucleus

chromosome

gene

DNA

Create another strand of DNA

• Where does it happen?• Nucleus (dna is a prisoner)

•A A A C C G T A C•T T T G G C A T G

Create the strand of mRNA from the DNA

• Where does it happen?• Nucleus (still trapped)

•A A A C C G T A C•U U U G G C A U G

rewrite the strand, placing a Guanine where it will cause the greatest impact in the

product

•A A A C C G T A C•G U U U G G C A U

•mRNA is a code for amino acids,•which are linked together in the cell organelle ribosome, • to create proteins

5 uses for proteins in your body (add the rest to your

answer)• Create muscle, bone and skin

cells• Enzymes• Antibodies• Hormones• Cell membranes

What does DNA have to do with protein

creation?

•Contains code for amino acids, so protein will be made

Mitosis • Type of cell• Body cell• # chromosomes that start process• 2n• # chromosomes in cell that is

created• 2n• Diploid or haploid• diploid

Mitosis • sketch

464646

46

92

Meiosis • Type of cell• Gamete (or…..)• Reproductive cell• # chromosomes that start process• n• # chromosomes in cell that is

created• n• Diploid or haploid

• haploid

meiosis

• sketch

464623

23

3 causes of mutations

• radiation (tanning beds, xrays)• Chemicals (mercury, benzene)• Unknown

What type of cell would a mutation have greatest

affect on next generation?• Arm or eye or stomach or……

no no no• Gamete ; because you

reproduce with them, which is passing trait to next generation

DNA

• Building block is• Sugars, phosphates and

nitrogen bases• One function• Code for proteins

Protein

• Building block is• Amino acids• One function• Enzymes, etc.

Carbs

• Building block is• Sugars (monosaccharide or

glucose), • One function• Energy (ATP)

Fats

• Building block is• lipids• One function• Insulation, energy

Make sure you know answers to Down’s syndrome essay in Reebop

•Unit exam on Monday, unless you have lots and lots of good questions for me on Monday…. Then test will be Tuesday.