[PDF] Biology: Molecular Genetics Lesson 2 Essential Question

43077_7Grade9_10BiologyApril6_15Assignment2.pdf

Biology: Molecular Genetics Lesson 2

Essential Question: How does the central dogma explain the continuity and diversity of life?

Lesson Outcomes:

Students will understand that each chromosome contains a single DNA molecule, and each gene is a portion of

that DNA molecule.

Students will understand that genes are portions of a DNA molecule that code for the formation of proteins.

Students will explain the relationship between DNA, chromosome, and gene. Textbook Reference: Inspire Biology pages 222, 299-305

Activity 1:

Watch the video Same Gene, Different Organism:

https://learn.genetics.utah.edu/content/evolution/samegene Journal activity: Title this section Activity 1: Central Dogma. T

A. Define central (to the Google)

B. Define dogma (to the Google)

C. D. How does this video represent a central dogma? Re-watch the video (its super short!)

Activity 2:

Watch the Amoeba Sisters Video DNA, Chromosomes, Genes, and Traits: https://www.youtube.com/watch?v=8m6hHRlKwxY You may find the following text resource helpful as well: https://www.pbs.org/wgbh/nova/genome/dna_sans.html Journal Activity: Title this section: Activity 2: DNA and Chromosome Video Notes. A. Copy the chart below and complete each box based on the information provided in the video.

Name Illustration Explanation (in your

own words!)

Significance

(Why does it matter)

Real Life Example

DNA

DNA found in the body

cell of a snake

Chromosome

Chromosomes allow large

amounts of DNA to be compacted. One reason this is significant is in cell division as it makes it easier to divide the

DNA molecules into new cells.

Gene

One of many segments

of DNA that code for a protein involved in creating eye color.

Trait

B. Copy the sketch on the right into your journal. Label the following terms in your sketch:

DNA, gene, chromosomes, nucleotide, phosphate,

Deoxyribose (sugar), nitrogenous base

Activity 3:

Watch the video on how fireflies produce light. You may want to watch it a couple of times ਐ਑਒ਓ:

https://learn.genetics.utah.edu/content/evolution/firefly/ Journal Activity: Title this section DNA to Protein Sketch Notes.

Create sketch notes (an illustrated flow chart) or a diagram describing the process that produces light in a firefly. Include

the following terms: genome, cell, luciferase gene, RNA polymerase, mRNA, ribosome, luciferase protein, luciferin,

oxygen, chemical reaction, light

Summative Activity:

Journal Activity: Title this section Extension: Transgenic Organisms.

Non- Honors: People with type 1 diabetes must take insulin in order to regulate their blood sugar. This insulin is

produced by bacteria, organisms that do not have the need for insulin and do not have the gene for insulin. Using the

information provided in activities 1-3 and the diagram below, write a well-developed paragraph that explain the

following: the process by which bacteria produce insulin how this is an example of the central dogma of biology Honors: In this lesson, we have learned that fish can glow green, yeast can make silk, and bacteria can make insulin. If you have your textbook, Inspire Biology, read pages 327-328 as a resource. Research other transgenic organisms and the applications of this practice on the world. Do you think this is an ethical practice? Use examples from your research and this lesson to create an argument. You do not need to complete a

CER template, but this format may be helpful in

organizing your ideas. Write a well-developed paragraph that includes your research and your perspective on the bioethics.