Lesson 61: Quarterly and Meiosis Review
DO NOW: (5 minutes)
HOMEWORK: Meiosis Quiz 12.4.15
1. What is the difference between
- Watch Karyotyping Video
haploid and diploid?
on Google Classroom
Hint: Review Meiosis Vocab
- Answer the 2 assigned
questions on video.
Today’s Plan:
OBJECTIVE: We will learn to
1.
2.
3.
4.
1. Differentiate between the two
phases and outcomes of meiosis.
2. Compare and contrast mitosis
and meiosis.
Do Now
Review Quarterly
Complete Meiosis Review
Closure
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: Karyotyping
DO 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?
Today’s Plan:
1. Do Now
2. Karyotyping Activity
What 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
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!*
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=SbrVw1jr
ZxE
Patient A-C
• http://www.biology.arizona.edu/human_bio/a
ctivities/karyotyping/karyotyping2.html
Closure
• Why is karyotyping important for us today?
Lesson 63: Mitosis/Meiosis Card Sort
DO 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 Now
2. Card Sort
3. 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?
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- Mitosis
DO NOW: (5 minutes)
HOMEWORK:
1. Take out your HW- Comparing
- Meiosis Quiz TOMORROW!
Mitosis & Meiosis: Student
- Review: Meiosis Review and
Summary Sheet
Comparing Mitosis & Meiosis:
2. Read Koala Cells Handout Page 1.
Student Summary Sheet
3. What are you doing in this Koala
investigation?
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 questions
1. 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_________
1. Does each chromosome carry only one gene?
___no there are many genes on each chromosome___
1. Are all the ear patch related genes on the same chromosome?
___no___
checkpoint questions
4. 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- Meiosis
DO NOW: (5 minutes)
HOMEWORK:
1. Take out your HW- Comparing Mitosis & - Meiosis Quiz TOMORROW!
Meiosis: Student Summary Sheet
2. Read Koala Cells Handout Page 2.
• What do capital letters represent on
the chromosomes? Dominant allele
• Lower case letters? Recessive allele
- Review: Meiosis Review and
Comparing Mitosis & Meiosis:
Student Summary Sheet
Today’s Plan:
OBJECTIVE: We will learn to
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?
1. Explain the differences and
similarities between meiosis and
mitosis.
2. Classify descriptions and terms
into mitosis or meiosis
categories.
Lesson 66: Meiosis Quiz
DO 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:
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
- Have a GREAT weekend!
1. Explain the differences and
similarities between meiosis and
mitosis.
2. Communicate our knowledge of
meiosis by taking a summative
assessment.