Mrs. Jankowski's Science

 

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7th Grade Science 7.1 & 7.3
 

Heredity

Chapter 13

Test on Thursday 12-15

Science TEKS 7.14

Organisms and environments. The student knows that reproduction is a characteristic of living organisms and that the instructions for traits are governed in the genetic material. The student is expected to:

(A) define heredity as the passage of genetic instructions from one generation to the
next generation;

(B) compare the results of uniform or diverse offspring from sexual reproduction or asexual reproduction; and

(C) recognize that inherited traits of individuals are governed in the genetic material found in the genes within chromosomes.

 

Section 1: Genetics

Listen to section 1:

Concepts:

  • Genetics, heredity, traits
  • Genes, alleles
  • Mendelian inheritance
  • Hybrids; dominant and recessive genes
  • Punnet squares
  • Genotype (homozygous, heterozygous) and phenotype

 

 
Day
In Class
At Home
Monday 11-14

Discuss cell reproduction test.

Check in with science fair progress

SCR test.

 

Tuesday 11-15 Heredity and genes; Gregor Mendel; hybrids; dominant and recessive alleles, genotypes and phenotypes Read ch. 13, sec. 1.
Wednesday 11-16
Thursday 11-17

Lab activity "Predicting Results" Practice: p. 390 # 6, 7.

 

Complete the paper

Friday 11-18

Mrs. Jankowski is away

Complete the following assignments independently:

  1. p. 389 Math Skills Activity
  2. Section 1 assessment p. 390 #1-7
  3. Worksheet p. 23 and 26

All assignments are due on Monday 11-21

 
 
Monday 11-21

Discuss above assignments

 
Tuesday 11-22 noon dismissal Pre -Lab activity "Corn Genetics"  
Thanksgiving Holiday
Day
In Class
At Home
Monday 11-28 Lab "Corn Genetics"

 

Tuesday 11-29 Corn Genetics lab  
Wednesday 11-30

Gather class totals for Corn Genetics lab.

Complete Corn Genetics lab paper

 

 

 

Section 2: Genetics since Mendel

Listen to section 2:

Concepts:

  • Incomplete dominance
  • Multiple alleles, blood types
  • Polygenic inheritance
  • Mutations
  • Recessive genetic disorders
  • Sex determination
  • Sex-linked disorders and pedigrees
 
Day
In Class
At Home
Thursday 12-1 and Friday 12-2

Incomplete dominance; multiple alleles - blood types

Polygenic inheritance; mutations and chromosomal disorders; recessive genetic disorders

Read p. 392-396, p. 398#6
Monday 12-5 Sex determination; lab activity"50:50 Chances" Complete " 50:50 Chances" report

Tuesday 12-6

Discuss results; Sex-linked disorders; pedigrees  
Wednesday 12-7 Pedigree problems Read p. 397-398
Thursday 12-8 Pedigree problems  
Friday 12-9 Activity "Sex-Linked Disorders in History" Study for Section 2 Quiz
 

Section 3: Genetic Engineering

Listen to section 3:

Concepts:

  • Genetic engineering
  • Recombinant DNA
  • Gene therapy

 

Monday 12-12

Quiz on Sec. 2

Genetic engineering

Optional: To help prepare for the test, visit Learn Genetics and complete as many activities as you can, starting with "What is Gene Therapy"
Tuesday 12-13 Review Chapter 13 ; video quiz Chapter Review w.s.
Wednesday 12-14 Review Chapter 13 Study for the test
Thursday 12-16 Chapter 13 test  
Christmas Break