# Inde

Topics: Plant, Seed Pages: 3 (480 words) Published: March 4, 2013
Virtual Lab 1: Dependent and Independent Variables Worksheet

Name: Tefere RezeneDate:

Fill out the following table with data from the lab exercise:

Table 1: Average Yield for each seed variety at no, low, and high infestation levels

Seed Variety|Level of ECB Infestation|Pot 1 Yield|Pot 2Yield|Pot 3Yield|Average Yield| BT 123|None|160.1|164.8|164.2|163.03|
|Low|164|162.6|168.3|164.96|
|High|155.1|163|163.9|160.66|
BT 456|None|190|183.20|184.80|186|
|Low|178.8|172.6|179.6|177|
|High|157.3|157|159|157.76|
Golden|None|181.6|182.80|189.80|184.73|
|Low|177.9|171.6|170.6|173.23|
|High|135.4|139.6|138.3|138.66|
Super Harvest|None|164.10|164.3|161.9|163.43|
|Low|159.1|155|157.50|154.53|
|High|125.50|129|130|128.16|

Fill out the following table with data from the lab exercise:

Table 2: % Reduction in yield for each seed variety at high levels of infestation (transfer data on average yield with no infestation and high infestation from Table 1 to Table 2)

Seed Variety|Avg. Yield with No Infestation|Avg. Yield with High Infestation|% Reduction In Yield| BT 123|163.03|160.66|1.45%|
BT 456|186|157.76|15.18%|
Golden|184.73|138.66|24.94%|
Super Harvest|163.43|128.16|21.58%|

Answer the following questions after completing the lab exercise:

1.For each seed variety, why did you need to collect data from 3 pots for each infestation level to obtain reliable data?

2.Which seed variety has the highest yield under conditions of no infestation?

BT 456

3.Which transgenic seed variety was most resistant to the ECB at high infestation levels?

Super Harvest

4.Which non-transgenic seed variety was most resistant to the ECB at high infestation levels?

Golden

5.Compare the yield of Super Harvest seeds and BT 123 seeds under conditions of no infestation. Is there any difference in the avg. yield?

Nope

6.If you compared one pot...