In this activity, students learn about the Human Genome Project. They do an interactive Web activity which simulates the process scientists use to determine the sequence of chromosomal DNA bases. Then they learn how two teams of scientists raced to decode the human genome. Next they explore a stretch of sequenced DNA on the Web to learn about the function of different sections of DNA code. They learn how knowledge of the human genome is being applied to medicine. They also learn about genetic variation among humans and between humans and other species. Finally, they assess what they have learned about the Human Genome Project by playing a game of Jeopardy.
Objectives
Learn about the purpose and work of the Human Genome Project
Describe the process of sequencing human DNA
Understand the functions of different stretches of code on a chromosome
Recognize the similarity in the genetic code among humans and between humans and other species
Learn how the Human Genome Project can contribute to curing diseases
Suggested Time
1-2 class periods
Multimedia Resources
Human Genome Project QuickTime Video
Sequence for Yourself Flash Interactive
The Sequencing Race Begins QuickTime Video
Explore a Stretch of Code Shockwave Interactive
HIV Immunity QuickTime Video
Genetic Variation QuickTime Video
Genome Facts HTML Document
Jeopardy Game Show PDF Document
Extract Human DNA from Cheek Cells HTML Document
Use these resources to create a simple assessment or video-based assignment with the Lesson Builder tool on PBS LearningMedia.
Materials
Jeopardy Game Show (PDF) review
Before the Lesson
Review the concepts of and relationships between DNA, genes, proteins, chromosomes, and traits.
After the Lesson
Do a wet lab in which students extract their own DNA from a cheek cell (see Extract Human DNA from Cheek Cells activity).
The Lesson
Part I
1. Show the Human Genome Project video. Discuss the following:
What does the Human Genome Project decode?
How is that code represented?
What has the project revealed about the differences between humans and bananas?
What questions does the Human Genome Project raise for you?
2. Now have students explore the DNA sequencing process by doing the Web activity Sequence for Yourself. Use the following questions to elicit student responses, either in writing or as part of a whole-class discussion:
Why does the DNA have to be cut into pieces? How is this done?
How are DNA copies made in the lab?
How do primers and special fluorescent nucleotides help determine the DNA sequences?
How does the overlapping of DNA segments allow the entire sequence of a DNA molecule to be read?
3. Show video The Sequencing Race Begins. Ask:
What is the process for sequencing the human genome?
How has the way scientists read the genetic code changed in recent years?
Why is the map of the human genome considered only the beginning of the Human Genome Project?
4. Have students Explore a Stretch of Code and take notes as they do it. Then ask the following and discuss as a class:
What does the majority of the DNA in chromosomes code for?
What is the role of gene promoters like TATA boxes?
How does the "machinery" of the cell know where to begin reading the gene?
What are exons, and what is their function in the chromosomes?
What are introns, and what do they do? What happens to them when DNA is transcribed into mRNA?
What are the roles of "hitchhiking" and ancient code in human DNA, and where did they come from?
How alike is the DNA from two different humans?
What is a gene, and what role do genes play in the human body?
5. Show the video HIV Immunity to examine some of the benefits of mapping the human genome. Ask:
What are outliers, and what is their value in understanding disease?
How can a genetic mutation be advantageous?
How is the knowledge of mutations being used to combat the HIV virus?
6. Show the video Genetic Variation and discuss the following:
Whose genes are being sequenced in the two human genome projects?
Are these genes representative of the human species? Why or why not?
What is the percentage of genetic difference between any two humans?
What does the similarity of basic functions between different organisms indicate?
7. Finally, have students read the Genome Facts document. Have students use these facts and what they have learned about the Human Genome Project to create a series of answers and questions for a Jeopardy quiz show. (
scientists have discovered several species of insect that all contain the same DNA sequence on their second chromosome. What does this evidence suggest?
Please help! Will pick brainist!
Manatees have toenails on their feet. The toenails are left over when the ancestors of manatees walked on land. They have no function today. Manatee toenails are examples of ...
A.comparative anatomy.
B.DNA.
C.fossil record
D.vestigial structures.
Answer:
vestigial structures
Explanation:
hope this helps
What are the effects of fishing on the reef ecosystem
Answer:
Coral reef fish are a significant food source for over a billion people worldwide. Many coastal and island communities depend on coral reef fisheries for their economic, social, and cultural benefits. But too much of a good thing can be bad for coral reefs. Download this infographic | Infographic Text
Coral reef ecosystems support important commercial, recreational, and subsistence fishery resources in the U.S and its territories. Fishing also plays a central social and cultural role in many island and coastal communities, where it is often a critical source of food and income.
The impacts from unsustainable fishing on coral reef areas can lead to the depletion of key reef species in many locations. Such losses often have a ripple effect, not just on the coral reef ecosystems themselves, but also on the local economies that depend on them. Additionally, certain types of fishing gear can inflict serious physical damage to coral reefs, seagrass beds, and other important marine habitats.
Coral reef fisheries, though often relatively small in scale, may have disproportionately large impacts on the ecosystem if conducted unsustainably. Rapid human population growth, increased demand, use of more efficient fishery technologies, and inadequate management and enforcement have led to the depletion of key reef species and habitat damage in many locations.
Which of the following is a negative about the use of fertilizers in farming?
1. They can help clean bodies of water near a farm
2. They decrease crop yields
3. They are expensive
4. They can cure diseases
Answer:
they are expensive is the answer
What builds up in static
electricity?
A. Electrons
B. Protons
C. Neutrons
Answer:
A. Electrons
Explanation:
True or false: the only function your nose has is to smell
Answer:
false
Explanation:
it helps to breathe as well
Answer:
false.
Explanation:
I dont know I think its rigjt
Which of the following is a reason a cell may divide:
A- The cell has become damaged
B- The cell wants to divide
C- Both a and b
D- Neither a nor b
What determines the color of a rock?
Answer:
Rock color chart method
Explanation:
hope this helps
Which of the following statements about organisms and their ecosystems is true?
a. Organisms are adapted to the ecosystems in which they live.
b. The abiotic factors in an environment are determined only by the local organisms.
c. Similar organisms play different roles in different ecosystems.
d. All organisms will thrive in any ecosystem.
free bobux man ccccccccccccummmmmm
Answer: ummmmm dont know what that means but freeeeee pointssss
Explanation:
Answer:
thanks. have a beautiful life.
Question 1 4 Eagles and grizzly bears live together in the same habitat. Which of the following situations would lead to eagles and grizzly bears competing for resources? O Grizzly bears hibernate during the winter while eagles remain active. O Pesticides in the fish population affect eagles' eggs and decrease their population. O Both grizzly bears and eagles feed on the same species of salmon. O Laws prevent humans from being able to hunt eagles or grizzly bears
Answer:
National Geographic Logo - HomeSKIP TO CONTENT
LOGIN
SUBSCRIBE
ANIMALSPHOTO ARK
Grizzly bear
Grizzly bears once lived across much of western North America until European settlements and aggressive hunting eliminated most of the population.
PHOTOGRAPH BY JOEL SARTORE, NATIONAL GEOGRAPHIC PHOTO ARK
COMMON NAME: Grizzly bears
SCIENTIFIC NAME: Ursus arctos horribilis
TYPE: Mammals
DIET: Omnivore
AVERAGE LIFE SPAN IN THE WILD: 25 years
SIZE: Five to eight feet
WEIGHT: 800 pounds
SIZE RELATIVE TO A 6-FT MAN:
IUCN RED LIST STATUS:? Least concern
LC
NT
VU
EN
CR
EW
EX
LEAST CONCERN
EXTINCT
CURRENT POPULATION TREND: Stable
What is the grizzly bear?
The grizzly bear is a North American subspecies of the brown bear. Grizzlies are typically brown, though their fur can appear to be white-tipped, or grizzled, lending them their name. Grizzly bears are protected by law in the continental United States—not in Alaska—though there have been some controversial attempts to remove those protections in recent years.
What must happen before meiosis can begin?
Answer:
The DNA is packed into chromosomes. The DNA replication is the same as mitosis. And after the DNA is replicated, the homologous will double, and now each chromosome now has a homologous pair
Explanation:
How does the movement of muscles attached to the ribcage and diaphragm initiate expiration?
The muscles relax, which which flattens the diaphragm and increases the volume of the chest cavity.
The muscles relax, which pulls the ribcage downward and decreases the volume of the chest cavity.
The lungs contract and push the air from the lungs.
The lungs relax and pull the air into the lungs.
Answer:
B
Explanation:
trust me my guy
Answer:
It's B I just took the quiz
Explanation:
S. If cells of onion peel and RBC are separately kept in hypotonic solution, what will take place? Explain the reason for your answer
Answer:
Well for the onion peel, since its a plant cell...it shall gain water from the solution as it has a lower water potentail,and hence increase in size, becoming turgid and tight, with the cell wall exerting pressure to stop it from bursting.
For the RBC, its an animal cell, and shall also gain water, but since there is no cell wall to support it, it shall soon gain so much water that it shall burst becuase of the pressure, through lysis, and shall die.
Note, the plant cell does not die.
If an IV has 4% salt, and the patient's cells have 6% salt are the patient's cells hypotonic, isotonic, or hypertonic compared to the IV?
Answer:
The correct answer is - hypertonic.
Explanation:
Hypertonic solution or the cells consist high concentration solutes in comparison to the other solution and in such cases, the water tends to move from hypertonic region to the hypotonic region.
In the given case the salt concentration which is solute in the patient's cells is higher 6% than the salt (solute) concentration of the given IV which is 4%, therefore, the patient's cell is hypertonic in comparison to IV.
each step of the pyramid is called a
Answer:
on the food chain it's trophic levels
actual step pyramids are called ziggurats
what are water and carbon dioxide in the cellular respiration reaction
Answer:
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Explain why NON-RENEWABLE resources are NOT renewable even though plants and animals continue to die all the time.
Answer:
The correct answer is - these resources take million years to be replenished.
Explanation:
Non-renewable resources are the resources that come from a source that will finish ultimately or run out or can not be replenished in one or more human life cycles. These sources might take million years to replenish.
Most non-renewable resources are fossil fuels, coal, natural gas. Fossil fuels, cols are were formed as the remains of dead plants and animals but takes millions of years to decay, under huge amounts of pressure and heat.
Which best describes bio geographic isolation?
A- it always leads to the formation of new species
B- it cannot lead to evolution
C- it is a mechanism for evolution
D- it occurs only through geographical forces
Answer:
b
Explanation:
Answer:
D
Explanation:
Because it doesn't always lead to new species, it can still lead to evolution, it isn't necessarily a mechanism for evolution though.
The modern model of the Plate Tectonic Theory suggests that the continents and the
major tectonic plates drift slowly on ?
Answer:
pretty sure it’s the lithosphere
The purpose of isolation techniques is to:
Answer:
Isolation practices are designed to minimize the transmission of infection in the hospital, using current understanding of the way infections can transmit. Isolation should be done in a user friendly, well-accepted, inexpensive way that interferes as little as possible with patient care, minimizes patient discomfort, and avoids unnecessary use.
Explanation:
Name some advantages and some disadvantages of overproduction of offspring
What relationship exist between amino acid and protein?
Explanation:
When connected together by series of peptide bonds, amino acids form a polypeptide, another word for protein. The polypeptide will then fold into a specific conformation depending on other interactions (dashed lines) between its amino acid side chains.
Amino acids are the subunits or monomers of proteins i.e. proteins are made up of amino acids.
WHAT ARE PROTEINS?
Proteins are one of the four major biological molecules in nature. Proteins are polymeric compounds made up of long chains of structures called AMINO ACIDS. Amino acids come together in a chemical reaction called CONDENSATION REACTION to form complex protein molecules. Each amino acid is linked to one another by a covalent bond called PEPTIDE BOND. Peptide bond is a kind of covalent bond that links two amino acids together. It forms between the amino group (-NH2) of one amino acid and carboxyl group (-COO) of anotherHence, amino acids are monomeric units of protein molecules.
Learn more: https://brainly.com/question/2024631
natural
combustion
photosynthesis
burning of
fossil fuels
animal
respiration
plant
respiration
Carbon Cycle
organic
carbon
decomposition
of organic waste
mineral carbon
nswered
Explanation:
hope this helps you I know every answer to fill in blanjs,they are all there.
all you need is in the photo
ASAP
Answer:
D
Explanation:
Can two different species of fungi from two different genus' mutate into a new species? i just want to know if it's a possibility, and how gigantic or slim the chances are of it happening.
Answer:
Yes, it is possible.
Explanation:
In this case, I'm guessing you mean breeding.
If that's the case, they will form hybrids.
Between two different species, inter specific hybrids will be formed.
Between two different genus, intergeneric hybrids will be formed.
There's even rare cases of breeding between two families.
So while it is possible for different species and/or genus to breed and form new species, in interspecific breeding for instance, they will have features similar to the parents but turn out sterile.
So to answer your question, it is possible.
please help its 6th grade science
Answer:
CAR C
Explanation:
I think
Select all of the answers that apply.
Chemical weathering occurs by which of the following:
heat
oxidation
hydrolysis
dissolution
water
wind
Solution, carbonation, hydration, oxidation, and reduction are significant chemical weathering reactions, hence options B and C are correct.
What is chemical weathering?Chemical weathering is the term used to explain how chemicals in rainfall alter the minerals in a rock. Rainwater becomes somewhat acidic as a result of the air's carbon dioxide being dissolved in it.
Weathering can result from an interaction between the minerals in the rock and precipitation.
Oxidation, hydrolysis, and carbonation are processes that take place during chemical weathering.
Therefore, hydrolysis is a reaction with water, carbonation is a reaction with CO₂ to generate a carbonate, and oxidation is a reaction with oxygen to form an oxide, hence options B and C are correct.
Learn more about weathering, here:
https://brainly.com/question/21125301
#SPJ2
PLEASE HELP I WILL MARK BRAINALIST
Answer:
i think it is A
Explanation:
Answer:
it is for sure A
Explanation:
how is lactobacillus acidophilus helpful
Answer:
its a a one of the many bacteria found inside of your intestines that produces lactic acid via fermentation of lactose (milk sugar)
Explanation: