Period  4, 7:

1.  Review of Chi-sqaured Form 2

Day 13 – Fast Plants

2.  FLOWERS!! – *pollinate our FAST PLANTS – Lab 1

a) Evolution basics —-> Angiosperms and pollinators = Coevolution

– Note taking on the sexual organs of the plant.

– Dihybrid Cross – same phenotype with the same phenotype

– Test cross – homozygous recessive individuals DO NOT provide pollen to any green leaf/purple stem plant!

 * Keep the Test Cross Group away FROM BOTH CLASSES!

                                                                                                                                                                                              Period  4,5(A), 7/8(A):

AP Biology Bees FRQ KEY
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2. Return the Mitotic Index Lab Activity/review

Mitotic Index Lab Activity
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3. Experimental Design – using the test group list I gave out (also posted below) each one of your groups is going to decide on 2 independent variable to test that are factors in Overall Plant health.

This will be explained in class.

a) Write the Title, Question & Hypothesis for Lab 3.

4. Add height data to Google Sheet.

5. Pollinate our Fast Plants

We set different test groups for Lab 2 and Lab 3.

Period 4/5                                                                      Period 7/8

Table 1:      2S, 2F        30 cm                                                               Table 1:      2S, 1F   Dim

Table 2:      1S, 2F        30 cm                                                               Table 2:     1S, 1F  bright L

Table 3:      2S, 1F        30 cm                                                               Table 3:     1S, 2F    DIM  

Table 4:       1S, 3F        36 cm                                                                Table 4:      2S, 2F  bright L

Table 5:       2S, 3F        36 cm                                                                Table 5:      2S, 3F   DIM

grodski:       2S, 0F        36 cm                                                                 grodski:      2S, 0F   DIM

Table 2:     1S, 1F         32 cm

Table 4:      2S, 2F        32 cm 

Table 1:      2S, 1F         42 cm

Table 3:     1S, 2F          42 cm

Table 5:      2S, 3F         42 cm

grodski:      2S, 0F        42 cm

Period  4/5, 7/8:

1. Collect The M&M worksheet – Review alternative hypothesis

Biology statistics 4 – M&M Chi squared analysis 1718.pdf
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2. Review the Pepper Moths Critical thinking Form – Thursday’s Homework.

3. Hand Back Stickleback graded forms.

4.  Continue the Excel Activity to build tables and graphs for Lab 3.

Please download the following Excel file: https://docs.google.com/spreadsheets/d/1PGPSiPkmCsKlcOBbazSfPMw8u2OhVort/edit?usp=sharing&ouid=106322700331434517238&rtpof=true&sd=true

___________                                                                                                                   Evolution NOTES – Basics:

Individuals do not evolve!!  Populations due by shifting the “normal distribution” toward individuals that have the greatest reproductive fitness = THEY LIVE LONG ENOUGH TO REPRODUCE MORE and pass on their alleles to the next generation.  This increased reproductive fitness is due to the SELECTIVE PRESSURE that the CHANGE provides!

 

IF there is not already an allele present THAT WILL HELP in the NEW ENVIRONMENTAL Conditions (Change) THERE WILL BE No EVOLUTION. This means that if an allele is not already present in low frequency BEFORE the change THERE WILL BE NO SELECTIVE PRESSURE for any allele and the population will suffer and eventually become extinct.

 

NOTICE that SEXUAL REPRODUCTION increases Genetic Diversity so much more than ASEXUAL REPRODUCTION does and thus produces more various alleles.  This variety of alleles creates the ABILITY for species to have a better chance to Evolve or survive NEW Changes in the environment.  How many current advanced species are alive today that undergo asexual reproduction?  Not many why?  Could we as humans evolved into the extremely complicated life form we are now if we did not sexual reproduce?

Asexual Reproducers ONLY get get variety when a mutation occurs while sexual reproduction Amplifies the diversity (from a mutation) by segregating chromosomes randomly, crossover, and random fertilization. 

 

ALL Evolution however starts with a mutation or a Random change of code in our DNA that creates new proteins that can stop current chemical reactions (recessive) OR START NEW REACTIONS (that make new alleles!!!) BUT that does not mean that evolution always occurs because of a mutation (broken gene). Evolution can occur by changing the frequency of certain alleles in a population.

1. Please begin your write-up of Lab 3 by writing the completing the following components with a shared Google Doc that has been sent to you in your private gmail: