Wednesday 2/19/14 What phase is considered the longest phase in the cell cycle? In your own words, how can you tell the difference between a scientific.

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Wednesday 2/19/14 What phase is considered the longest phase in the cell cycle? In your own words, how can you tell the difference between a scientific theory and a scientific law? When you are finished, turn in your Evolution of a Thing homework up front.

Today CFA #2 Online HW #3 due tomorrow Genetics CSA tomorrow Laws vs. Theories/Hypotheses Darwin’s Voyage

Objectives Distinguish between Law and Theory Understand the 3 patterns of biodiversity observed by Darwin

Evolution Disclaimer Yes, I am allowed to teach it. This is a biology class, and the evolutionary theory is a pillar of biology. Evolution will be on the NESA science tests. Although the Theory of Evolution has much evidence and backing, it is still that, a theory.

CFA #2 Need a scratch piece of paper out for your 2 nd CSA Review

1. Which of the following can be identified in a karyotype? a. Specific genes b. Alleles c. An extra or missing chromosome d. A change in the DNA sequence

2. Identify the correct karyotype notation for a healthy male: a. 46, XY b. 47, XXY c. 48, XY d. 46, XX

3. Nondisjunction is... A. Chromosomes separating incorrectly after metaphase B. A gene mutation in interphase C. An error in DNA replication in interphase D. Crossing over of chromosomes in prophase

4. A normal human muscle cell has 46 chromosomes. What is the haploid number in humans and where do you find haploid cells? 4. A normal human muscle cell has 46 chromosomes. What is the haploid number in humans and where do you find haploid cells? A. 23, sex cells B. 23, body cells C. 46, sex cells D. 46, body cells

5. Which are examples of a genotypes? A. Red fur B. Bb C. Blue eyes D. Dd

6. How many recessive alleles for a characteristic must an organism have to show the recessive characteristic? 6. How many recessive alleles for a characteristic must an organism have to show the recessive characteristic? A. 1 B. 0 C. 2 D. 3

7. Which of the following genotypes is homozygous dominant? 7. Which of the following genotypes is homozygous dominant? A. GG B. Gg C. gg D. gG

8. Transgenic organisms are… a. an organism that has had a gene from another organism inserted into its DNA sequence b. a complete mix between two organism’s genotypes c. an organism that has half of the genes from another organism d. a completely new organism created from a complete set of laboratory created genes

9. Used to produce sex cells: a. Gametes b. Haploid c. Mitosis d. Meiosis

10. Dimples are dominant over no dimples. A male and female both have dimples. They have a child with no dimples. What are the genotypes of the parents? A. DD and dd B. DD and DD C. dd and dd D. Dd and Dd

11. Using the parents from #10 and a Punnett square, what is the probability of having offspring with dimples? A. 0% B. 25% C. 50% D. 75% E. 100%

12. What is the correct sequence of events of the cell cycle? S, G1, G2, M G1, G2, S, M M, S, G1, G2 G1, S, G2, M

13 Why do cells go through mitosis? a. For sexual reproduction b. For growth and development c. To replace dead and damaged cells d. b and c e. All of the above

14 Why do cells go through meiosis? a. For sexual reproduction b. For growth and development c. To replace dead and damaged cells d. b and c e. All of the above

Survey says....

1. Which of the following can be identified in a karyotype? a. Specific genes b. Alleles c. An extra or missing chromosome d. A change in the DNA sequence

2. Identify the correct karyotype notation for a healthy male: a. 46, XY b. 47, XXY c. 48, XY d. 46, XX

3. Nondisjunction is... A. Chromosomes separating incorrectly after metaphase I B. A gene mutation in interphase C. An error in DNA replication in interphase D. Crossing over of chromosomes in prophase I

4. A normal human muscle cell has 46 chromosomes. What is the haploid number in humans and where do you find haploid cells? 4. A normal human muscle cell has 46 chromosomes. What is the haploid number in humans and where do you find haploid cells? A. 23, sex cells B. 23, body cells C. 46, sex cells D. 46, body cells

5. Which are examples of a genotypes? A. Red fur B. Bb C. Blue eyes D. Dd

6. How many recessive alleles for a characteristic must an organism have to show the recessive characteristic? 6. How many recessive alleles for a characteristic must an organism have to show the recessive characteristic? A. 1 B. 0 C. 2 D. 3

7. Which of the following genotypes is homozygous dominant? 7. Which of the following genotypes is homozygous dominant? A. GG B. Gg C. gg D. gG

8. Transgenic organisms are… a. an organism that has had a gene from another organism inserted into its DNA sequence b. a complete mix between two organism’s genotypes c. an organism that has half of the genes from another organism d. a completely new organism created from a complete set of laboratory created genes

9. Used to produce sex cells: a. Gametes b. Haploid c. Mitosis d. Meiosis

10. Dimples are dominant over no dimples. A male and female both have dimples. They have a child with no dimples. What are the genotypes of the parents? A. DD and dd B. DD and DD C. dd and dd D. Dd and Dd

11. Using the parents from #9 and a Punnett square, what is the probability of having offspring with dimples? A. 0% B. 25% C. 50% D. 75% E. 100%

12. What is the correct sequence of events of the cell cycle? a. S, G1, G2, M b. G1, G2, S, M c. M, S, G1, G2 d. G1, S, G2, M

13 Why do cells go through mitosis? a. For sexual reproduction b. For growth and development c. To replace dead and damaged cells d. b and c e. All of the above

14 Why do cells go through meiosis? a. For sexual reproduction b. For growth and development c. To replace dead and damaged cells d. b and c e. All of the above

Selective Breeding vs. Transgenic Organisms

Evolution in a Day qa2cP4 qa2cP4

Charles Darwin Who was he? What did he observe on his voyage aboard the HMS Beagle?

Read Chpt 16.1 Pages In your notebook write down the three patterns of biodiversity noted by Darwin. Be sure to include examples for each pattern.

Assignment Write down 3 questions from the section, exchange these with your table partner and answer each other’s questions. Be sure to discuss each others questions and answers.