Lesson 61: Quarterly and Meiosis ReviewDO NOW: (5 minutes) 1. What is the difference between

haploid and diploid? Hint: Review Meiosis Vocab

HOMEWORK: Meiosis Quiz 12.4.15 - Watch Karyotyping Video on

Google Classroom - Answer the 2 assigned

questions on video.

Today’s Plan: 1. Do Now2. Review Quarterly 3. Complete Meiosis Review4. Closure

OBJECTIVE: We will learn to 1. Differentiate between the two

phases and outcomes of meiosis. 2. Compare and contrast mitosis

and meiosis.

Do Now Answers

• Haploid: A cell that contains only a SINGLE set of chromosomes.

• Diploid: A cell that contains BOTH sets of homologous chromosomes

Lesson 62: KaryotypingDO NOW: (5 minutes) 1. In the Mitosis/Meiosis Trial,

Martha had one extra chromosome 21. What was the concern with having an extra chromosome?

2. What is karyotyping?

HOMEWORK: Meiosis Quiz 12.4.15 - Complete Meiosis Review

page 3 and 4. - Review your notes on

textbook page 275- 278. *This will help with the review!*

Today’s Plan: 1. Do Now2. Karyotyping ActivityWhat is a zygote? Do abnormal chromosome numbers always result in Down syndrome?What are 3 ways a doctor can get a sample of chromosomes? If we took a magnified photograph of a cell in prophase/interphase could we see the chromosomes?3. Closure

OBJECTIVE: We will learn to 1. Analyze karyotypes and use them as a diagnostic tool to determine genetic disorders.

Do Now

1. In the Mitosis/Meiosis Trial, Martha had one extra chromosome 21. What was the concern with having an extra chromosome?

An extra chromosome 21 could lead to Down’s Syndrome once the egg is fertilized.

2. What is karyotyping? Scientists take a photograph of the chromosomes in

a cell. They organize them by size and banding pattern. Then look for possible genetic diseases in humans.

• Purpose: look for genetic diseases. • How? Take a picture of chromosomes in a cell,

organize them, place them in order of decreasing size.

• Notes:– XX: female– XY: male

Notes

• Normal Male Notation: 46, XY• Normal Female Notation: 46, XX• Disorder: – 47, XY, 18+ (male extra #18)– 47, XX, +19 (female extra #19)

Visualizing Non-Disjunction

• https://www.youtube.com/watch?v=SbrVw1jrZxE

Patient A-C

• http://www.biology.arizona.edu/human_bio/activities/karyotyping/karyotyping2.html

Closure

• Why is karyotyping important for us today?

Lesson 63: Mitosis/Meiosis Card SortDO NOW: (5 minutes) 1. What are 3 similarities between mitosis and meiosis?

HOMEWORK: Meiosis Quiz 12.4.15 - Complete Meiosis Review

page 3 and 4. - Review your notes on

textbook page 275- 278. *This will help with the review!*

Today’s Plan: 1. Do Now2. Card Sort3. Review Mitosis Quiz What kinds of cells undergo mitosis? If a cell has 25 chromosomes during

prophase, how many chromosomes will each of the news cells have after mitosis completion?

4. Closure

OBJECTIVE: We will learn to 1. Explain the differences and

similarities between meiosis and mitosis.

2. Classify descriptions and terms into mitosis or meiosis categories.

Closure

• Complete summary questions.

Lesson 64: Making Koala Cells- MitosisDO NOW: (5 minutes) 1. Take out your HW- Comparing Mitosis & Meiosis: Student Summary Sheet 2. Read Koala Cells Handout Page 1. 3. What are you doing in this Koala investigation?

HOMEWORK:- Meiosis Quiz TOMORROW! - Review: Meiosis Review and

Comparing Mitosis & Meiosis: Student Summary Sheet

Today’s Plan: Do Now, Making Koala Cells Part 1, Closure What is the diploid number of

chromosomes in Koalas? Does each chromosome carry only one

gene? Are all of the ear patch related genes on

the same chromosome? Do the daughter cells have the diploid or

haploid number of chromosomes?

OBJECTIVE: We will learn to 1. Explain the differences and

similarities between meiosis and mitosis.

2. Classify descriptions and terms into mitosis or meiosis categories.

Do Now- Answers

Checkpoint questions1. What is the diploid number of chromosomes in Koalas? (it is 46 in humans)

______10__________

a. How many homologous pairs of chromosomes does a Koala have in each somatic cell? (hint: humans have 46 chromosomes or 23 pairs)

_______5_________

2. Does each chromosome carry only one gene?

___no there are many genes on each chromosome___

3. Are all the ear patch related genes on the same chromosome?

___no___

checkpoint questions4. Do the daughter cells have the diploid or haploid number of chromosomes?

___________diploid (2 of each size or #)__________________

5. Are the daughter cells different or identical?

_____identical to the original and each other__

6. When does mitosis occur? (give at least 2 different scenarios)

_when an ORGANISM grows by gaining more cells or when new cells are needed to replace damaged or dead cells. It also happens in tumor formation._

7. Does mitosis make somatic body cells or gametes (sperm & egg)?

__somatic cells_______

Closure

How does the process of mitosis ensure that the daughter cells will be IDENTICAL?

Why doesn’t crossing over occur in mitosis?

Lesson 66: Making Koala Cells- MeiosisDO NOW: (5 minutes) 1. Take out your HW- Comparing Mitosis & Meiosis: Student Summary Sheet 2. Read Koala Cells Handout Page 2.• What do capital letters represent on

the chromosomes?• Lower case letters?

HOMEWORK:- Meiosis Quiz TOMORROW! - Review: Meiosis Review and

Comparing Mitosis & Meiosis: Student Summary Sheet

Today’s Plan: Do Now, Making Koala Cells Part 2, Closure What is the diploid number of

chromosomes in Koalas? Does each chromosome carry only one

gene? Are all of the ear patch related genes on

the same chromosome? Do the daughter cells have the diploid or

haploid number of chromosomes?

OBJECTIVE: We will learn to 1. Explain the differences and

similarities between meiosis and mitosis.

2. Classify descriptions and terms into mitosis or meiosis categories.

Dominant allele

Recessive allele

Lesson 66: Meiosis QuizDO NOW: (5 minutes) 1. What is the difference between

Metaphase I and Metaphase II?2. What is the difference between

Anaphase I and Anaphase II?

HOMEWORK:- Have a GREAT weekend!

Today’s Plan: Do Now, Quiz, Finish Mitosis Koala Drawing, Closure What is the diploid number of

chromosomes in Koalas? Do the daughter cells have the diploid

or haploid number of chromosomes?

OBJECTIVE: We will learn to 1. Explain the differences and

similarities between meiosis and mitosis.

2. Communicate our knowledge of meiosis by taking a summative assessment.