Mrs. Jankowski's Science

 

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7th Grade Science 7.8
 

Heredity

Chapter 13

Test Thursday 1-19

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 11-28

Discuss DNA test.

Heredity and genes; Gregor Mendel; hybrids; dominant and recessive alleles, genotypes and phenotypes

SCR test.

 
Tuesday 11-29 Read ch. 13, sec. 1. Sec. assessment p. 390 # 1-7 in the notebook
Wednesday 11-30 Thursday 12-1 Friday 12-2 Check homework; practice with Punnet squares; p. 389 Math Skills Activity; worksheet p. 23 and 26 Complete at home if needed
 
Day
In Class
At Home
Monday 12-5

Lab activity "Predicting Results"

Complete the paper

Tuesday 12-6

Discuss "Predicting Results"; review section 1

Study for section 1 quiz
Wednesday 12-7 Section 1 quiz  
Thursday 12-8 Pre -Lab activity "Corn Genetics"

 
Friday 12-9 Corn Genetics lab  
 
Day
In Class
At Home
Monday 12-12

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
Tuesday 12-13 Wednesday 12-14

Incomplete dominance; multiple alleles - blood types

Polygenic inheritance; mutations and chromosomal disorders; recessive genetic disorders

 Read p. 392-396, p. 398#6
Christmas Break
Tuesday 1/3 Review genetics since Mendel  
Wednesday 1/4 Sex-linked disorders; pedigrees  

Thursday 1/5 Friday 1/6

 Sex-linked disorders; pedigrees  
Monday 1/9 Tuesday 1/10 Activity "Sex-Linked Disorders in History" Read p. 397-398
Wednesday 1/11 Activity "Sex-Linked Disorders in History" Chapter Review packet
Thursday 1/12 Work on Heredity review packet Study for the test
Friday 1/13 Work on Heredity review packet Study for the test
Tuesday 1/17 Wednesday 1/18 Review Study for the test
Thursday 1/19 Chapter 13 Heredity test