Instructions for Students to Study and Do Homework (2 Minutes)

plan in notebook


HARVEST REPORT FORM


STT

Object

Number of chromosomes/cell

Explain the mechanism of mutation formation

1

Normal people

46

Normal

2

Down syndrome

47

gamete (n) x gamete (n + 1) → zygote

(2n + 1= 46 + 1)

3

Patient Tron

45

gamete (22 + X) x gamete ( 22 + 0 ) →

zygote (44 + X0)

Maybe you are interested!


3. Comments (2')

- Teachers comment on the lesson and evaluate the results of the groups.

4. HDVN (1')

- Complete the report.

- Review knowledge about Mendelian genetics.

Comments after class:

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Date of preparation:


Chapter II - REGULARITY OF HEREDITY PHENOMENA


Lesson 8 - Lesson 8: MENDEL'S LAW: LAW OF SEPARATION

I- Objectives:

1. Knowledge:

After completing this lesson, students should be able to

- Describe the experiment and understand how to explain the results of Mendel's experiment. Present the content of the law of segregation.

- Understand the cytological basis of the law of segregation.

2. Skills:

- Practice observation and analysis skills to collect information.

3. Application:

- Have the awareness to apply knowledge of the law of segregation into production practice.

- Apply knowledge to do exercises

4. Capacity development

a/ Knowledge capacity:

- Students can determine what the learning objectives of the topic are .

- Practice and develop analytical and generalizing thinking skills.

- Students can ask many questions about the learning topic b/ Life skills:

- Ability to demonstrate confidence when presenting ideas in front of groups, teams, and classes.

- Ability to present thoughts/ideas; collaborate; manage time and assume responsibility, in group activities.

- Ability to search and process information.

- Self -management : Be aware of the factors that affect you : impact on

learning process such as friends, learning tools, teachers...

- Correctly identify the rights and obligations of learning the subject...

- Team management : Listen and respond positively , create

II. TEACHING METHODS AND TECHNIQUES

1. Teaching methods

- Problem posing and solving methods…

- Group teaching method, verification method

2. Teaching techniques

open source

set ...

-Lightning technique, feedback technique in teaching, brainstorming technique.

II- Preparation:

1. Teacher:

- Film (animated picture) about monohybrid hybridization and the cytological basis of the law of segregation.

- Study card.

2. HS:

- Review lesson 2,3 SH 9.

III- Lesson progress:

1. Check: No check.

2. New lesson:

At the same time as Mendel, there were many people who studied Genetics, but why is he considered the father of Genetics? What made him achieve such success?

that work?


Teacher activities

Student activities

Content

A. STARTUP

* Target :

- Stimulate students' interest in finding out what they already know about the law of segregation

- Train students' critical thinking skills.

* Method: Presentation, analysis, commentary

* Competency orientation: problem solving, cognitive ability

Introduction to MENDEL to enter the lesson

Humanity has witnessed great achievements in biology in general and genetics in particular. Perhaps, anyone interested in biology or who studied it in high school remembers Gregor Johann Mendel, the father of genetics. His laws of inheritance have been and are the foundation for biotechnology today.

Mendel's contributions to the field of biology are compared to Newton's contributions to physics. However, at his time, people did not realize the importance and great value that Mendel's research brought to humanity. In the eyes of people at that time, he was just an unknown monk, an amateur scientist. But the incorrect assessments of the scientific community at that time did not make Mendel stop his research work. He continued to quietly explore and discover as if it were a need.

by itself

Gregor Johann Mendel was born on July 22, 1822, in Moravia, Austria (now the Czech Republic), into a poor peasant family. From a young age, he was always interested in taking care of plants in the garden.

B: KNOWLEDGE FORMATION

* Target :

- Describe the experiment and understand how to explain the results of Mendel's experiment. Present the content of the law of segregation.

- Understand the cytological basis of the law of segregation.

* Method: Presentation, analysis, commentary

* Competency orientation: problem solving, cognitive ability

Activity 1: Mendel's genetic research method.

1. Require students to read the textbook section I, combine the knowledge learned in lessons 1, 2 SH 9 to complete the following content in 10 minutes:

- State the characteristics of Mendel's genetic research method.

- State the experiment of

Mendel? From the experimental results, what can you conclude about the trend?


Students learn about Mendel's genetic research methods.


- Read the textbook and reproduce the knowledge of grade 9, complete the requirements set by the teacher.


- Research methods

- Experiment

- F 1 is gay like the father or mother.

I/ Mendel's genetic research method. (20 minutes)

Hybrid analysis method with procedure (Textbook)

- Based on what did Mendel conclude that the phenotype ratio of 3:1 in F2 corresponds to the genotype ratio of 1:2:1?

2. Call on a few random students to answer each content, and let the class discuss, comment and add to each content. Then the teacher edits and explains (if necessary) and summarizes for students to take notes.

Activity 2: Forming Mendel's scientific theory and the cytological basis of the law of segregation.

1. Distribute worksheets to groups of desks.

2. Introduce the video about monohybrid crossbreeding and the cytological basis of the law of segregation.

3. Ask students to watch the film, independently read textbook sections II and III, and discuss in groups to complete the study sheet within 10 minutes.

4. For each content of the study sheet, you can use the results of a different group and organize for other groups to comment and supplement.

5. Complete each content for students to take notes.

6. Comments and evaluation of the groups' operational awareness.

- F 1 only expresses the traits of one parent, F 2 expresses both traits of the father and mother with a ratio of 3:1


- From the result F 3 .


Students learn about the formation process of Mendel's scientific theory, the content of the law of segregation and the cytological basis of the law of segregation.


- Receive study vouchers

- Follow the teacher's introduction.

- Watch the film, read the textbook independently and discuss in groups to complete the content of the study sheet.

- Discuss each content of the worksheet and evaluate your group's results.

- Take notes as per the edited study sheet content.


II/ Formation of scientific theory. (15')

(Explanation according to Mendel and the content of the law as the answer sheet).

III/ Cytological basis of the law of segregation. (7')

(as the answer sheet)

C: PRACTICE

Objective: - Practice to help students consolidate what they already know.

- Train students' self-study skills, communication and cooperation skills, and problem-solving skills.

Teaching method: Assigning homework

Direction of trait expression in F 1 ? About the trait expression of parents in F 1 and F 2 ?

Competency development direction: problem solving, communication skills, cognitive skills.

* How to proceed:

- The teacher gives us a situation with multiple choice questions.

- Students do exercises and multiple choice questions in groups (4 groups).

Question 1: Mendel's method of hybridization and analysis of hybrid organisms includes the following steps:

(1) Give a hypothesis to explain the results and prove the hypothesis.

(2) Cross different pure lines for one or more traits and then analyze the results in F 1 , F 2 , F 3 .

(3) Create purebred lines.

(4) Use probability math to analyze the cross results. The correct order of steps that Mendel performed is A. (2) → (3) → (4) → (1)

B. (1) → (2) → (4) → (3)

C. (3) → (2) → (4) → (1)

D. (1) → (2) → (3) → (4)

Answer: C

Question 2: When proposing the hypothesis that each trait is determined by a pair of genetic factors, the genetic factors in the cells do not mix with each other and separate evenly into gametes. How did Mendel test his hypothesis?

A. Let F1 cross analyze

B. Let F2 self -pollinate

C. Let F1 crossbreed with each other

D. Let F1 self -pollinate

Show answer

Answer: A

Question 3: According to Mendel, the mechanism governing the inheritance and expression of a pair of contrasting traits through generations is due to

A. The separation and combination of genetic factors in meiosis and fertilization

B. the combination of homologous chromosome pairs in fertilization

C. the separation and combination of homologous chromosome pairs in meiosis and fertilization

D. The separation and combination of genetic factors in meiosis


Answer: A

Question 4: Which of the following is not true according to Mendel's law of segregation?

A. Each trait of the body is determined by a pair of genetic factors.

B. Each trait of the body is determined by many pairs of genes.

C. Due to the equal segregation of genetic factors, each gamete contains only one factor of the pair.

D. Although F1 is a hybrid organism, when creating gametes, the gametes are pure.

Show answer

Answer: B

Objective: - Create opportunities for students to apply acquired knowledge and skills to new situations and contexts, especially in real life.

-Training thinking and analytical skills.

Teaching methods: Group teaching; problem-solving teaching; presentation method; use of visual aids

Capacity development orientation: Experimental capacity, observation capacity, creative capacity, communication capacity. Self-confidence, independence, communication.

Study card


Watch the video clip about monohybrid hybridization and the cytological basis of the law of independent segregation and combination, read the textbook sections II and III, then discuss in groups to complete the following worksheet within 10 minutes.

1. State the content and explain the experimental results according to Mendel and the chromosome theory (cytological basis) by filling in the content in the following table:


2. Present Mendel's hypothesis testing method.

E: EXPAND (2')

Objective: To explore and expand knowledge, summarize all the knowledge learned

Teaching method: Assigning tasks

Capacity development orientation: autonomy-self-study, understanding nature and society, problem solving

Draw a mind map for the lesson

D: APPLICATION (8')

Content of the rules and explanation of the results

Mendelian fruit

According to chromosome theory (basis)

cytology)



4. Guide students to study and do homework (2 minutes)

1. Study the lesson and answer the questions and do exercise 1/page 66 Textbook.

2. Review lessons 4, 5 SH 9.


-------------------------------------------------


Lesson 9 - Lesson 9: MENDEL'S LAW: LAW OF INDEPENDENT SEGMENTATION


I. OBJECTIVES

After completing this lesson, students should be able to

1. Knowledge:

Describe Mendel's two-trait cross experiment.

- Explain why Mendel deduced the law of independent segregation of allele pairs during gamete formation.

- Present the content of the law of independent assortment.

- Explain the cytological basis of the law of independent assortment.

- Infer the genotype of an organism based on the results of phenotypic segregation of the experiments.

hybrid

- Form a general formula for gamete separation rate, genotype and phenotype ratio

shape in polyhybrid crosses.

2. Skills:

- Develop skills in observing and analyzing visual channels.

- Develop skills in analyzing experimental results.

3. Application:

- Know how to apply the combination formula to explain the diversity of living things.

- Know how to apply knowledge to solve related exercises.

4. GDMT:

- Recognize the appearance of combinatorial variations that create raw materials for evolution and breeding, creating species diversity, being aware of protecting emerging variations, and preserving biodiversity.

5. Capacity development

a/ Knowledge capacity:

- Students can determine what the learning objectives of the topic are .

- Practice and develop analytical and generalizing thinking skills.

- Students can ask many questions about the learning topic/ Life skills:

episode

- Ability to demonstrate confidence when presenting ideas in front of groups, teams, and classes.

- Ability to present thoughts/ideas; collaborate; manage time and assume responsibility, in group activities.

- Ability to search and process information.

- Self-management: Be aware of the factors that affect you : impact on

learning process such as friends, learning tools, teachers...

- Correctly identify the rights and obligations of learning the subject...

- Team management : Listening and positive feedback , creating

II. TEACHING METHODS AND TECHNIQUES

1. Teaching methods

- Problem posing and solving methods…

open source

set ...

- Group teaching method, verification method

2. Teaching techniques

-Lightning technique, feedback technique in teaching, brainstorming technique.


II- preparation:

1. Teacher:

Film (animation) about binomial hybridization and the cytological basis of the law of independent assortment.

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