Week 1 Roundup Form

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Week 1 Roundup Form

Please complete the form based on the topics from week one.

First Name: *

Last Name: *

Email: *

Please double check this for accuracy as I will send you your graded work back to you through this email. Do not use school email accounts. Please use the gmail account that you used this summer.

1. Please identify the correct order of the pathway that a new trait develops in organism due to chromosomal line of inheritance. (For example a white flower develops seed or offspring that are now have red flowers. White is recessive and red is dominant). *

Click the column for the the correct order to develop new trait (1 - 6). If you click column "1" for enzyme then you are saying that the enzyme comes before the other parts of the pathway.

Chromosome

enzyme

allele

amino acids

base pair code (DNA)

chemical reactions

2. Why is the white flower the recessive allele? *

Please choose all the correct answers to the question above. There is more than one answer.

The expressed trait results from a gene that codes for a protein that does catalyze the chemical reactions for white flowers.

The expressed trait results from a gene that codes for a protein that does not catalyze the chemical reactions for red flowers.

The expressed trait results from a gene that codes for a protein that has the incorrect shape to catalyze the chemical reactions that produce white flowers. .

The expressed trait results from a gene that codes for a protein that has the incorrect shape to catalyze the chemical reactions to produce red flowers. .

The expressed trait results from a gene that has a mutation that has lost the ability to catalyze the chemical reactions to produce white flowers. .

The expressed trait results from a gene that has a mutation that has lost the ability to catalyze the chemical reactions that produce red flowers. .

The white flower requires 2 white alleles in its genotype in order to express the white color.

The red flower requires 2 red alleles in its genotype in order to express the red color.

Required

3. Given the following image, what is the function of the histones (which are proteins). *

Histones catalyze the chemical reactions that duplicate DNA in the S phase of the cell growth cycle.

Histones catalyze the chemical reactions that read the code from the DNA

Histones allow the DNA to bundle into chromosomes in Interphase.

Histones allow for the DNA to attain its double helix shape.

Hstones are highly alkaline proteins found in prokaryotic cell nuclei that package and order the DNA into structural units called nucleosomes.

Histones allow for the packaging of DNA strands that are so that they can segregate successfully.

All of the choices are correct

None of the choices are correct

4. Given the diagrams below of 2 different cells in metaphase check all that correctly applies to each cell.

2n = 8

2n = 4

2n = 16

cell is meiosis I only

cell could be in meiosis II or in mitosis

Cell A

Cell B

5. Given the following investigation determine the BEST hypothesis below:

If crayfish are present the number of Daphnia will decrease.

Will underwater plants protect Daphnia from the goldfish?

The underwater plants protecting the Daphnia from goldfish.

If the goldfish are present there will be a greater number of Daphnia then the control tank.

If the goldfish are present there will be a lower number of Daphnia than the control tank.

If the underwater plants are present the number of Daphnia will be higher than the control tank.

If Daphnia are present than the number of goldfish will be higher than the control.

All of the choices above are correct.

None of the choices are correct.

Other:

Clear selection

6. Given the following data please determine the mode, range, mean, variance, and standard deviation.*Remember the AP Biology reference tables can help!

10.1, 4.4, 8.7, 0.03, .17

8.7, 4.4, 10.1, 0.03, .17

10.1, 4.4, 8.7, 2.28, 1.5

10.1, 4.4, 8.7, 1.9, 1.4

8.7, 4.4, 8.7, 1.9, 1.4

10.1, 4.4, 8.7, .03, .17

Clear selection

7. Based on your work from question 6, predict the range of maple leaf width values that 68% of the population will have.

7.2 to 10.2

5.7 - 11.7

4.4 - 10.1

5.9 - 11.5

7.3 - 11.5

Clear selection

8. Does the 5.7 value from the the 5th leaf measured in question 6 fall within 98% of the population?

True

False

Clear selection

9. Determine the mitotic index for the onion cells in the micrograph below:

0.261

0.739

0.086

0.043

Clear selection

10. Using data from question 9 determine the amount of time the onion cell spends in telophase. Use the actual life span of an onion cell = 720 minutes. Round off to the nearest minute.

125 minutes

31 minutes

63 minutes

532 minutes

626 minutes

Clear selection

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