Amy's Week 4 Handout

Bicd120: Worksheet 4 TA: amy tran Email: [email protected] OH: by appointment 1. Why does plants with odd # ploidy sterile? 2. What will happen to a triploid plant if you treat it with a little colchicine? 3. who was the scientist that tried to make a tetraploid by crossing a raddish with cabbage? Did he succeed? 4. Between the 2 seeds, which has a transposable element that excise early in development? 5. if there is no ATP production, what would accumulate in the chloroplast of C3 plants? 6. if there is no NADPH production, what would accumulate in the chloroplast of C4 plants? What will it lack? 7. how does a non-autonomous element transpose? 8. can a plant with an autonomous element or in other words have tranposons still express WT trait? 9. what are 3 characteristics that all transposons share? How are transposons different? 10. what is the point of having TIR and TSD?

11. when transposons excise, it results in an extra _________, which makes the DNA longer or possibly cause a ___________. 12. what moves sugar from leaves to roots? Why to the roots? 13. if sugar accumulate in the source cell but does not diffuse into the phloem, what will happen to the plant?

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Bicd120: Worksheet 4 TA: amy tran Email: [email protected] OH: by appointment 14. meristem type

Promotes what kind of growth?

Found where?

Apical

Lateral

15. what are the functions of xylem? 16. Condition

name

stamen + carpel without stamen without carpel if both staminate or carpellate are in the same plant = if both staminate or carpellate are in the different plant 17. how do you get sepals, petals, petals, sepals? Answer by drawing the ABC model with all components of the label. 18. how do you get a flower with all four whorls of petals? 19. if a flower misses a stigma, what flower organs will it lack? Think of what gene must have been mutated since there is no stigma.

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