Experimental biology

Experimental biology

plant reproductive biology: the life cycle of higher plants -http://bio.fsu.edu/~winn/3402L/WinnCH3.html

plant reproductive biology:Separation in Time - two different types of flowers, one having long styles and stamens low in the floral tube

Statistics:ch7-http://bio.fsu.edu/~winn/3402L/WinnCH7.html

data for bees ch8

The relationship between time spent by a bee on a flower and seeds per pod produced by that flower

Arrange the data by XY pairs and determine the following values

Compute the slope, b, by this formula ch8

Compute a, the intercept where X = 0 ch8

Place the values you have calculated into this equation Y = a + bX and Compute the total sum of the squares of the Y values (SST)

Compute the sum of the squares due to regression (SSr)- http://bio.fsu.edu/~winn/3402L/WinnCH8.html

Compute the sum of squares due to error (SSE) = SST - SSr, divide the SSr and the SSE by the appropriate degrees of freedom to get the variance for each (the Vr and the VE). Thedegrees of freedom for SSr are always 1. Therefore, SSr = Vr. The degrees of freedom for SSE = n - 2.Therefore, the formula for the variance due to error is

The last step is to calculate an F statistic using the formula - http://bio.fsu.edu/~winn/3402L/WinnCH8.html

fig.8.2 The data on seeds/pod and time/flower above produce the significant relationship - http://bio.fsu.edu/~winn/3402L/WinnCH8.html

Ch12 A typical angiosperm flower viewed from above

Ch12 A cross section of a typical angiosperm flower, showing details of male and female portions of the flower

Ch12 -For each flower, start with a list of all the options

Then go through each of the floral characteristics below, crossing out systems that could not be involved (those listed in parentheses areunlikely, but possible candidates). For example, if the flower color is red, you would cross off your worksheet all the systems listed after red. The pollination system(s) that is (are) not crossed off your list is (are) the most likely candidate(s) for that particular species

the structure of two flowers

Ch 13 http://bio.fsu.edu/~winn/3402L/WinnCH13.html

http://bio.fsu.edu/~winn/3402L/WinnCH13.html

CHapter 12 - http://bio.fsu.edu/~winn/3402L/WinnCH12.html

The pollination systems addressed in this key are abbreviated as:

Abiotic systems (water pollination is not addressed in this key)

WI wind pollination

Insects

BT beetles

F-M flies (myophily)

F-S flies (sapromyophily)

BE bees

BU butterflies

MO moths

Vertebrates

BI birds

BA bats

This key is used to eliminate unlikely pollinators. Use this key to determine the most likely pollination system for at least two flowers provided for this purpose by the Teaching Assistant.
see pictures for ch12 abowe.

1. Neatly diagram the structure of two flowers that appear different to you. On each one, label the following structures: anther, filament, stigma, style, ovary, petal, sepal (if present).

2. Sketch one entire inflorescence and label an individual flower.

3. For two different flowers, use the Key to Pollination Systems to identify the most likely pollinator of that flower. For each flower, describe what traits you used to eliminate three specific other possible pollinators (e.g. the presence of a fruity scent may lead you to eliminate birds as a possible pollinator).