Monday, March 19, 2018

Genetics: Patterns of Inheritance continued>

March 26, 2018 - March 30, 2018
Spring Break
No assignments for students who have been studying and who passed the test on March 22nd.  Spring break will be a good time for other student to spend some time during the break to review information presented since the start of genetics.

See you on April 2nd.
 
March 23, 2018
Lab: Fingerprinting.

March 22, 2018
Tests on Genetics

March 21, 2018

Discussions of a few major genetic recessive diseases:
Tay Sachs
Sickle cell anemia
cystic fibrosis

Discussion of dominant condition and disease
achondroplasia
Huntington's Disease

March 20, 2018
Pedigree charting of a real life family with achondroplasia

March 19, 2018

Worksheets done in class to encourage students to learn the material covered in genetics.
Each student worked individually on two different worksheets.

Read and study the vocabulary words and notes to help you with the test on Thursday, March 22, 2018.  Some information is posted on the previous posts.
Pages 496 through pages 515 in Biology the Human Approach, ( the textbook that was assigned for you to take home), will have the information taught in class.

Tuesday, March 13, 2018

Genetics: Cellular Basis and Patterns of Inheritance March 12 - March 16, 2018

March 15, 2018

Click on the link below to upload your results
Genotype from Phenotype.

Lab: Determining Genotype from Phenotype.
The class will examine their phenotypes and determine their genotypes.  Some of the traits to be
examined  are: hair texture, earlobes, hairline, eye distance, tongue rolling
Image result for cartoon tongue rollingImage result for cartoon attached earlobe and unattached                                    


March 14, 2018
Introduction to Punnett Squares.
Explanation shared in class of all the concepts and terminology to understand the expression of genes.

Image result for determining genotype from phenotype
Like all sexual reproducing species, Sponge Bob inherits half his chromosomes with his genes from his mom and half from his dad.

If Sponge Bob is homozygous he would have inherited yellow trait from his mom and yellow from his dad. His genotype would be YY
However, if he is heterozygous, he would have inherited yellow from one parent and blue from another. His genotype would be Yy.

To find out if Sponge Bob is homozygous or heterozygous do a test cross; mate him with a homozygous recessive female of his species.

We know that Sponge Bob's genotype is not yy, because his phenotype would be blue.
The dominant trait overshadows the recessive trait when inherited together.

Create a Punnett square to figure out what would happen in either scenario.


March 13, 2018
Karyotyping Lab:
The class worked on pretend patients to identify chromosomal abnormalities in their DNA.

 Image result for Karyotyping

Monday, March 5, 2018

Genetics; The Cellular Basis of Reproduction and Inheritance. March 5 - March 9, 2018


March 9, 2018
Crossing over during meiosis
Image result for reason for crossover during meiosis
 The Benefits of Crossing over:
1) It produces genetic variation.
2) Diversity within a species increases the chances of survival



Non-disjunction

Consequences of Non-disjunction:
 Sex chromosomes:
 Image result for turner syndrome


Image result for nondisjunction  in sex chromosomes

Trisomy 21 ( Down Syndrome):


Image result for consequences of down syndrome
March 8, 2018
What happens when cells grow out of control?
Tumors develop.  The tumors can be benign or malignant. 
 
March 7, 2018
The class was spent explaining the vocabulary words of the day of distinguishing the different types of cells; haploid and diploid cells

The Human Life Cycle
 
 Image result for the human life cycle gamete to adult

March 6, 2018
Off for Professional Development Training.
The students will draw and label the stages of Meiosis

March 5, 2018
Discussion and Explanation of binary fission/asexual reproduction and the differences between sexual  reproduction.
Overview of Mitosis- The Cell Cycle

Click the link below to see the overview of the cell cycle.
The Cell Cycle


The stages of Mitosis:

 

Thursday, March 1, 2018

Photosynthesis Test / Introduction to Genetics February 26, - March 2, 2018

March 1, 2018
Introduction to Genetics.

February 28, 2018
Test on Photosynthesis.

February 27, 2018
Packet - The Biochemistry of Photosynthesis - graded

February 26, 2018
Notes and vocabulary words collected and graded