schedule

Today’s schedule Pick-up daily notes

Complete the warm-up: Mitosis and meiosis are both forms of cell division. Please list and/or describe 1 similarity and 2 differences between them.

*The warm-up will be displayed on the smartboard as students enter.

Discuss the warm-up.

PowerPoint begins at this point:

5-Alive Recap: Lively 5 minute review/recap of previous lesson

*if this goes over 5 min that is fine

Introduce today’s topic and objectives (will be written in hand-out as well as on whiteboard)

BrainPOP video

Vocabulary review

Group assignments (by me, pre-determined)

Classwork page: complete together

Bean-otype lab activity: complete in small groups

Discuss lab as class

Homework will be independent practice on genotypes, phenotypes, & Punnett squares

Exit ticket

Also turn in lab pages upon exiting

common core

MSDE (2012):INDICATOR3.3.2 The student will illustrate and explain how expressed traits

are passed from parent to offspring.

Assessment limits: phenotypes (expression of inherited characteristics) dominant and recessive traits sex-linked traits (X-linked only; recessive phenotypes are more

often expressed in the male) genotypes (represented by heterozygous and homozygous pairs

of alleles) Punnett square (use to predict and/or interpret the results of a

genetic cross; translate genotypes into phenotypes - monohybrid only)

pedigree (use to interpret patterns of inheritance within a family)

warm-Up

Mitosis and meiosis are both forms of cells division.

Please list/describe

1 similarity & 2 differences between them.

cell divisionmitosis and meiosis

5-alive recap

mitosis

Mitosis: Parent cell (n) creates identicaldaughter cells (n)

Mitosis occurs all over

Mitosis creates all types of cells

meiosis

Meiosis: Parent cell (2n) creates unique daughter cells (n)

Meiosis only occurs in gonads

Meiosis only creates sex cells

differences

Meiosis

Daughter cells are _____ to the parent cell and each other

Different

Genetic information in daughter cells: _____

Half

Meiosis

Daughter cells are _____ to the parent cell and each other

Different

Function of this type of cell division

Mitosis Meiosis

Daughter cells are _____ to the parent cell and each other

Identical Different

Genetic information in daughter cells: _____

Full complement Half

Function of this type of cell division

Embryonic develomentGrowthReplenishment of cellsRepair after injury

Production of gametes

meiosis

ovum and sperm production

zygote formation

genes

objectives

Objectives By the end of today’s lesson, students will be able to

discuss Mendelian genetics & heredity using scientific vocabulary with 85% accuracy by practicing it in small groups.

By the end of today’s lesson students will be able to explain the relationship between meiosis & heredity with 85% accuracy by viewing a PowerPoint presentation.

By the end of today’s lesson students will understand, with 85% accuracy, that the sorting and recombination of genes that occurs during fertilization leads to genetic variation among offspring by completing a lab activity.

Tim and Moby on heredity

BrainPOP video

crucial vocabulary

Genotype: The 2 alleles inherited for a particular gene (the code)

Phenotype: Observable traits (outward expression of the genotype)

Allele: One of two or more versions of a gene

Trait: A specific characteristic of an organism which can be determined by genes or the environment, or more commonly by

interactions between them

Gene : The basic physical unit of inheritance. Genes are passed from parents to offspring and contain the information needed to specify

traits; found on chromosomes.

a few more terms…

Dominant vs. Recessive: Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be

expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.

Heterozygous: An individual inherits different alleles for a particular gene

from each parent.

Homozygous: An individual inherits the same alleles for a particular gene from

both parents.

Inherited trait: One that is genetically determined. Inherited traits are passed from parent to offspring according to the rules of Mendelian genetics. Most traits are not

strictly determined by genes, but rather are influenced by both genes and environment

Punnett square: A diagram used to determine possible phenotypes.

Pedigree: A genetic representation of a family tree that diagrams the

inheritance of a trait or disease though several generations

groups

Group 1:

Andre, Irma, Nevia

Group 2:

Juan, Kai, Lilli

Group 3:

Malini, Miguel, Anthony

Group 4:

Quincey, Rudis, Sophie

Group 5:

Tarik, Simon, Scott

Group 6:

Tammika, Tonya, Victor

classwork/new content

We will complete the classwork page collaboratively (found in handout package):http://betterlesson.com/document/4853/pra

ctice-problems-on-genotypes-and-phenotypes?from=interllective

bean-otypes

Today’s activity!

To observe and understand the genetic variation among offspring we will complete an activity to simulate the sorting and recombination of genes that occurs during fertilization.http://betterlesson.com/unit/1114/070-genetics?from=profile#/document/9018/offspringratios

Students will work in groups assigned by me.

supplies

Supplies for each group

2 bags of beans Please have 1 group member pick up beans from lab

supply table in back of room

Lab sheets (found in your handout package)

Pen or Pencil

bean-otypes

The beans represent the gene for fur color in rats.

Black=B

Black is dominant

Red=b

Red is recessive

methods

Methods:

To be completed collaboratively

Work in small groups

Discuss results as a class

See the lab activity “Offspring, offspring, everywhere” for complete directions (in handout package)

results

Results

Each member of the group will fill in their own results table and write the answers to the results questions.

We will discuss results as a class

Labs will be turned in at the end of class

if you finish early…

If your group finishes the bean-otype lab early, please review the vocabulary list and quietly discuss the terms with your group members.

homework

found in your handout packagehttp://betterlesson.com/document/4855/punnett-squares-and-heterohomozygous-practice?from=search#/document/4832/homework-on-genotypes-and-phenotypes

references

Brooklyn College (Publisher). (2000-2012). Gene sorting (Image). Retrieved from http://lc.brooklyn.cuny.edu/smarttutor/corc1321/meiosis.html

IUPUI Department of Biology (Publisher). (2000, February 16). Zygote formation (Image). Retrieved from http://www.biology.iupui.edu/biocourses/N100H/ch9meiosis.html

MSDE. (2012). Core learning goals for biology. School Improvement in Maryland. Retrieved from http://mdk12.org/instruction/clg/biology/goal3.html

Ovum and sperm production (Image). Retrieved from http://rushartsbiology.wikispaces.com/Visuals+-+Unit+5

Tamarkin, D.A. (Writer). (2011). Differences between Meiosis and Mitosis(Image). Retrieved from http://faculty.stcc.edu/AandP/AP/AP2pages/reprod/sexcells.htm

Tamarkin, D.A. (Writer). (2011). Meiosis (Image). Retrieved from http://faculty.stcc.edu/AandP/AP/AP2pages/reprod/sexcells.htm