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Biology 1/Hons. Biology 1

Biology 1/Hons. Biology 1. Weeks 23_2018-19 SY. COPY DATE, TOPIC & OBJECTIVE ON PG. 12 Date: 2.11.19 Ch. 8 Cell Reproduction Topic(s): Ch. 8 Mini Quiz Objective: SWBAT take a formative assessment on everything they learnt in Ch. 8 Deadline to turn in Ch. 8 related work Today!!!

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Biology 1/Hons. Biology 1

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  1. Biology 1/Hons. Biology 1 Weeks 23_2018-19 SY

  2. COPY DATE, TOPIC & OBJECTIVE ON PG. 12 Date: 2.11.19 Ch. 8 Cell Reproduction Topic(s): Ch. 8 Mini Quiz Objective: SWBAT take a formative assessment on everything they learnt in Ch. 8 Deadline to turn in Ch. 8 related work Today!!! Ch. 8 Mini Quiz, Today!!! Copy HW, DN (Answer DN), ET on PG. 11 Do Now: Update TOC Quietly go over concepts learnt in Ch. 8; get ready for quiz CW: Ch. 8 quiz HW: Organize notebook; any unfinished CW/HW/ET 1) Complete Ch. 9; Sec 1 Q&A Exit Ticket: Rate the Quiz Too Easy Just Right Too Hard & Why? Body of Lesson: (DO NOT HAVE TO COPY) 1. Do Now(DN) & DN debrief 2. Ch. 8 Quiz3. Exit ticket

  3. COPY DATE, TOPIC & OBJECTIVE ON PG. 14 Date: 2.12.19 Ch. 9 Fundamentals of Genetics Topic(s): Mendel’s Legacy Objective: SWBAT Describe how Mendel was able to control how his pea plants were pollinated; Describe the steps in Mendel’s experiments on true breeding garden peas; Distinguish between dominant and recessive traits; State two laws of heredity that were developed from Mendel’s work; Describe how Mendel’s results can be explained by scientific knowledge of genes and chromosomes Ch. 9 Mini Quiz Fri. Feb 15th 2019 Glue/Tape/Copy HW, DN (Answer DN), ET on PG. 13 Do Now: Update TOC 1) Define trait. What traits did Mendel study in his experiment? 2) What pollination methods did Mendel use in his experiments? CW: Mendel’s Legacy HW: Organize notebook; any unfinished CW/HW/ET Read Ch. 9-2 Essay Genetic Crosses & complete related Q&A Exit Ticket: Define the vocab. Words we learnt in class today (Refer to Ch. 9 Vocab. Sheet) Body of Lesson: (DO NOT HAVE TO COPY) 1. Do Now(DN) & DN debrief 2. Mendel’s Legacy 3. Exit ticket

  4. COPY DATE, TOPIC & OBJECTIVE ON PG. 16 Date: 2.13.19 Ch. 9 Fundamentals of Genetics Topic(s): Genetic Crosses (day1) Objective: SWBAT 1) State two laws of heredity that were developed from Mendel’s work; 2) Describe how Mendel’s results can be explained by scientific knowledge of genes and chromosomes; 3) Differentiate between the genotype and the phenotype of an organism; 4) Explain how probability is used to predict the results of genetic crosses; Use a Punnett square to predict the results of monohybrid and dihybrid genetic crosses; 5) Explain how a test cross is used to show the genotype of an individual whose phenotype expresses dominant trait; 6) Differentiate a monohybrid cross from a dihybrid cross Refer to Important Dates on DN Slip Glue/Tape/Copy HW, DN (Answer DN), ET on PG. 15 Do Now: Update TOC; Refer to Wksht. CW: Genetic Crosses HW: Organize notebook; any unfinished CW/HW/ET Complete Assigned Problems from the Genetics Problem Pkt. Exit Ticket: Refer to ET slip. Body of Lesson: (DO NOT HAVE TO COPY) 1. Do Now(DN) & DN debrief 2. Genetic Crosses 3. Exit ticket

  5. COPY DATE, TOPIC & OBJECTIVE ON PG. 18 Date: 2.14.19 Ch. 9 Fundamentals of Genetics Topic(s): Genetic Crosses (Day 2) Objective: SWBAT 1) Explain how probability is used to predict the results of genetic crosses; Use a Punnett square to predict the results of monohybrid and dihybrid genetic crosses; 2) Explain how a test cross is used to show the genotype of an individual whose phenotype expresses dominant trait; and 3) Understand inheritance of Non-Mendelian traits (Incomplete Dominance and Co-dominance) Refer to important dates on DN Slip Glue/Tape/Copy HW, DN (Answer DN), ET on PG. 17 Do Now: Update TOC; Refer to Wksht. Define test cross. What is it used for? CW: Genetic Crosses (Day 2) Amoeba sisters (ID, CD, PG): https://www.youtube.com/watch?v=YJHGfbW55l0 Multiple Alleles: https://www.youtube.com/watch?v=9O5JQqlngFY HW: Organize notebook; any unfinished CW/HW/ET Complete assigned parts of Genetics Problem Pkt.; Study for Ch. 9 Mini Quiz Exit Ticket: 1) Define test cross. Using an example & Punnett Square perform a test cross to identify genotypes; 2) Define Incomplete Dominance. Illustrate using a Punnett Square & example 3) Define Co-Dominance. Illustrate using a Punnett Square & example Body of Lesson: (DO NOT HAVE TO COPY) 1. Do Now(DN) & DN debrief 2. Genetic Crosses (day 2) 3. Exit ticket

  6. COPY DATE, TOPIC & OBJECTIVE ON PG. 20 Date: 2.15.19 Ch. 9 Fundamentals of Genetics Topic(s): Genetic Crosses (Day 3) & Ch. 9 Mini Quiz Objective: SWBAT 1) Understand inheritance of Non-Mendelian traits (Incomplete Dominance and Co-dominance); and 2) take a formative assessment on everything they learnt in Ch. 9 Refer to important dates on DN Slip Glue/Tape/Copy HW, DN (Answer DN), ET on PG. 19 Do Now: Update TOC; Refer to Wksht. Name the two Non-Mendelian patterns of Inheritance in living organisms CW: Genetic Crosses (Day 2) Amoeba sisters (ID, CD, PG): https://www.youtube.com/watch?v=YJHGfbW55l0 Multiple Alleles: https://www.youtube.com/watch?v=9O5JQqlngFY HW: Organize notebook; any unfinished CW/HW/ET Complete Genetics Problem Pkt.; Ch. 9 Review Pkt. Exit Ticket: Part I: 1) Define Incomplete Dominance. Illustrate using a Punnett Square & example 2) Define Co-Dominance. Illustrate using a Punnett Square & example Part II: Rate the quiz Too Easy Just Right Too Hard & Why? Body of Lesson: (DO NOT HAVE TO COPY) 1. Do Now(DN) & DN debrief 2. Genetic Crosses (day 3) 3) Ch. 9 Mini Quiz 3. Exit ticket

  7. Snapdragons HUH? http://www.dobermann-review.com/info/genetics/mendels_genetic_laws/Gregor%20Mendel.jpg http://faculty.pnc.edu/pwilkin/incompdominance.jpg

  8. Incomplete Dominance • Neither allele is completely dominant over the other allele. • A heterozygous phenotype • A mixture or blending of the two

  9. Four-o’ clock flowers • Incomplete dominance X • Neither Red (R) or White (W) is dominant When a homozygous red flower (RR) Mix with a homozygous white flower (WW), the alleles blend in the hybrid (RW) to produce pink flowers homozygous White flower (WW) homozygous red flower (RR) hybrid Pink flower (RW)

  10. Andalusian Chickens • Incomplete dominance • Neither Black (B) or White (W) are dominant The offspring of a black feathered chicken (BB) and a white feathered chicken (WW) are blue (BW) – BLUE HEN!!

  11. Let’s Stop and Think… Let’s say there are two alleles for the hair color trait- red and blue What would be the resulting phenotype of a heterozygous pair if the alleles showed incompletedominance? A. Red B. Blue C. Purple D. Red and Blue patches

  12. Codominance • Two equally dominant alleles are expressed at the same time. • Heterozygous phenotype will have both phenotypes visible

  13. Shorthorn Cattle • Co- dominance • Homozygous red (RR) • Homozygous white (WW) The offspring of will have both red and white hairs (RW) The offspring are heterozygous and called “roan”

  14. Roan Horse http://search.vadlo.com/b/q?rel=2&keys=Dominance+Incomplete+Dominance+Codominance+PPT

  15. Let’s Stop and Think… • Let’s say there are two alleles for the hair color trait- red and blue • What would be the resulting phenotype of a heterozygous pair if the alleles showed codominance? • A. Red • B. Blue • C. Purple • D. Red and Blue patches

  16. MULTIPLE ALLELISM When there is more than 2 alleles possible for a given gene. Allows for a larger number of genetic and phenotypic possibilities.

  17. Blood Typing ii IA IA IB ii IB • Blood types are A, B, O, and AB. • AB blood is a co-dominant trait. • Both the A blood and the B blood need to be dominant in order to make a combination of co-dominant blood types, which is AB. Some scenarios: • IA IB • IB • IB

  18. Codominance & Multiple Alleles Human blood type is an example of both codominance and a trait with multiple alleles. AB = universal acceptor O = universal donor

  19. Rhesus Factor The Rhesus factor, also known as the Rh factor, gets its name from experiments conducted in 1937 by scientists Karl Landsteiner and Alexander S. Weiner. Involved Rabbits which when injected with the Rhesus monkey’s red blood cells, produced an antigen present in the red blood cells of many humans http://content9.clipmarks.com/blog_cache/latimesblogs.latimes.com/img/E0C83714-56E5-4757-B9F1-604FCE5643C3

  20. Rhesus Factor The Rhesus factor is an antigen, or more specifically a protein, that exists on the surface of red blood cells. If a person has either two (+) genes for Rh or one (+) and one (-) Rh gene, they will test Rh(+). A person will be negative only if they have 2 (-).

  21. It is very important in terms of babies: E.g. an Rh(-) mother may make antibody against an Rh(+) fetus if the baby gets a (+) gene from its father (Obstetricians screen pregnant women for this problem with blood tests). The ABO and RH genes are only two of many blood antigens that are present on human red cells and must be matched up for successful blood transfusions. Relevance of Rh Factor & ABO Typing?

  22. Multifactorial Referring to control of the expression of a trait by several genes and environmental factors. Many multifactorial traits show continuous distribution.

  23. Multifactorial E.g. Human height  usually between 120cm and 200cm, however these genes cannot be fully expressed without all the necessary nutrients from a healthy diet http://www.babble.com/CS/blogs/droolicious/menace-height.jpg

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