In flies dumpy wings and ebony bodies are each mutations recessive to wild type, and you expect them to behave in a Mendelian fashion. A dihybrid cross between two animals, each heterozygous for dumpy wings and ebony bodies (DdEe X DdEe) is performed with the following results:

Wild type wings; wild type body 473
Wild type wings; ebony body 156
Dumpy wings; wild type body 149
Dumpy wings; ebony body 52

You will ultimately explain these results using a Chi-squared test.
(a) Begin by setting up a Punnett Square to predict the phenotypic classes and ratios. Use the results of the Punnett square to form a hypothesis on phenotypic ratios.
(b) Perform the chi-squared analysis. Show work.
(c) What conclusion can be drawn from this analysis?

Answers

Answer 1

Answer:

See the answers below

Explanation:

Assuming that D (d) represents the allele for wing type and E (e) represents the allele for body type, crossing DdEe with DdEe will yield the following offspring according to the Punnet's square (see the attached image):

(a) 9/16 D_E_  wild type

    3/16 D_ee  wild wing, ebony body

    3/16 ddE_ dumpy wing, wild body

    1/16 ddee dumpy wing, ebony body

(b) Chi square \(X^2\) = \(\frac{(O - E)^2}{E}\), where O = observed frequency and E = expected frequency.

Phenotype                O                  E                                           \(X^2\)

Wild type                 473          9/16 x 830 =  466.875     \(\frac{(473 - 466.875)^2}{466.875}\) = 0.08

wild w/ebony b      156          3/16 x 830 = 155.625       \(\frac{(156 - 155.625)^2}{155.625}\) =  0.0009

Dumpy w/wild b     149          3/16 x 830 = 155.625      \(\frac{(149 - 155.625)^2}{155.625}\) = 0.28

dumpy w/ebony b  52            1/16 x 830 = 51.875        \(\frac{(52 - 51.875)^2}{51.875}\) = 0.0003

Total \(X^2\) = 0.3612

Degree of freedom = 4 - 1 = 3

Tabulated value of \(X^2\) (0.05)= 7.815

(c) Since the calculated Chi square value is less than the tabulated value, we conclude that the observed outcome agrees with the expected outcome and that the cross followed the standard Mendelian pattern.

In Flies Dumpy Wings And Ebony Bodies Are Each Mutations Recessive To Wild Type, And You Expect Them

Related Questions

The type of equipment that is used to store food at -18°C or bellow​

Answers

Answer: Refrigirator

Explanation: Food at -18°C or -0.4°F are stored in the frigde to avoid spoilage

Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)​

Answers

Answer:

Explanation:

To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."

i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:

    Y     Y

y   Yy  Yy

y   YY  YY

ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.

The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).

Question 2:

To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.

5x_=1 jdjdjcjdjdjjdkd​

Answers

Answer:

what...

Explanation:

what is the name for the rafflesia's organism

Answers

Rafflesia arnoldii, the corpse flower or giant padma, is a species of flowering plant in the parasitic genus Rafflesia. It is noted for producing the largest individual flower on Earth. It has a strong and unpleasant odor of decaying flesh. It is native to the rainforests of Sumatra and Borneo.

List three ways to keep the environment clean

Answers

Reduce, reuse, recycle

Reduce: Use plastic less
Reuse: Reuse plastic bags and paper bags when going to the store
Recycle: Recycle food, garbage, and paper into different containers

why are Some substances allowed to cross the cell membrane while other substances are not?

Answers

Answer:

membranes are semipermeable so only let certain materials in and out; if there are carrier or channel proteins, then passive transport can occur otherwise active transport is required which requires energy.

Explanation:

membranes are semipermeable so only let certain materials in and out; if there are carrier or channel proteins, then passive transport can occur otherwise active transport is required which requires energy.

Ddiversity is me ured by counting the number and variation of different species of plants, animals, and other organisms that interact within an ecosystem. examining the usefulness of a specific trait in a species that interacts within an ecosystem. counting the total number of one species population and how they interact within an ecosystem. only analyzing animal species that interact within an ecosystem. P​

Answers

Diversity is measured by counting the number and variation of different species of plants, animals, and other organisms that interact within an ecosystem, 1st option.

What has diversity got to do with ecosystem interaction?

Diversity is crucial for ecosystem interaction because different species within an ecosystem rely on each other for survival. A diverse ecosystem is better able to withstand disturbances such as natural disasters, climate change, and invasive species.

When there is a loss of biodiversity, it can lead to a disruption of ecosystem services such as pollination, nutrient cycling, and water purification. Therefore, preserving diversity within an ecosystem is essential for the overall health and functioning of the ecosystem.

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uses of biotechnology in washing powder making

Answers

Answer:

Here are some uses of biotechnology in the production of washing powders:

Enzymes: Enzymes are commonly used in washing powders to enhance the cleaning efficiency and remove various types of stains.  Proteases, amylases, lipases, and cellulases are examples of enzymes used in washing powders. These enzymes break down protein-based, starch-based, lipid-based, and cellulose-based stains, respectively, into smaller fragments, making them easier to remove during the washing process.

Bio-surfactants: Surfactants are essential components of washing powders as they help to remove dirt and oil from fabrics. Biotechnology allows for the development of bio-surfactants, which are surfactants derived from biological sources, such as bacteria or yeast. These bio-surfactants are more environmentally friendly than traditional surfactants as they are biodegradable and have lower ecological impact.

Microbial Strains: Biotechnology can be used to isolate, characterize, and optimize microbial strains that produce enzymes or bio-surfactants. Microorganisms, such as bacteria and fungi, can be engineered or selected for their ability to produce specific compounds that enhance the cleaning performance of washing powders.

Genetic Modification: Genetic modification techniques can be employed to enhance the properties of microorganisms used in the production of enzymes or bio-surfactants. This allows for the creation of microorganisms with improved characteristics, such as increased enzyme activity or enhanced stability under varying conditions.

Fermentation Processes: Biotechnology facilitates the use of fermentation processes to produce enzymes and bio-surfactants at a large scale. Fermentation involves the controlled growth of microorganisms in bioreactors, where they produce enzymes or bio-surfactants through metabolic processes. This enables the efficient and cost-effective production of these ingredients for use in washing powders.

Explanation:

Which of the following are examples of a renewable resource? Choose ALL that apply.

coal

sunlight

natural gas

wind

nuclear power

biomass

petroleum

plants (trees, cotton, corn)

Answers

Answer:Most of our energy is nonrenewable · Petroleum · Hydrocarbon gas liquids · Natural gas · Coal · Nuclear energy.

Explanation:

which is NOT a example of a biotic factor?

Answers

Answer:

Explanation:

Plants, trees, humans, insects, animals, birds, etc. ... Abiotic factors are those that contain non-living organisms. These factors include soil, air, water, sunlight, etc.

Why does frozen water take on the pattern it does (hint: it has to do with water’s polarity)?

Answers

When ice forms, one water molecule's hydrogen atoms form weak hydrogen bonds with the tops of the oxygen atoms of two other water molecules. Lining up the water molecules in this pattern takes up more space than randomly arranging them.

What is polarity?

A physical property of compounds that connects other physical properties like melting and boiling points, solubility, and intermolecular interactions between molecules is referred to as polarity.

When ice forms, one water molecule's hydrogen atoms form weak hydrogen bonds with the tops of the oxygen atoms of two other water molecules.

Lining up the water molecules in this pattern takes up more space than randomly arranging them.

When water freezes, the water molecules slow down enough that their attractions arrange them into fixed positions. Water molecules freeze in a hexagonal pattern, with molecules further apart than when the water was liquid.

Thus, because of this frozen water take on the pattern it does.

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What happens after oxygen binds with hemoglobin?

Answers

Answer:

It transports oxygen

Explanation:

The hemoglobin transports the oxygen to different areas of the body in the blood of the body.

what opposes the sliding motion of two
surfaces that are in contact.

Answers

Answer:

Friction: A force that opposes the motion of objects that touch as they move past each other. Friction acts at the surface where objects are in contact.

Explanation:

The force that acts against your pushing force is called friction. is a force that resists the motion between two surfaces in contact. When you try to slide two surfaces across each other, the force of friction resists the sliding motion.

In prokaryotes, certain proteins act to regulate genes by binding to DNA. What could be the effect of these binding proteins?

Answers

Answer:

increase/reduced transcription of those genes

Explanation:

protein binds  either  allowing or preventing transcription

The movement of water cross cellular membranes through aquaPorins is known as

Answers

Answer:

osmosis

Water can pass through the cell membrane through simple diffusion because it is a small molecule, and through osmosis, in cases where the concentration of water outside of the cell is greater than that of the inside.

yall please help me this is the second last question in highschool for me

14. Which of the following best practices on documentation is part of the ALCOA guidelines?

A. Corrections to clinical trial data can be made without explanation.
B. After data is recorded, a researcher doesn't need to keep original documents listing the data
C. Any recorded data should be attributable to a specific researcher.
D. Any recorded data should be attributable to a specific study participant.

Answers

The best practices on documentation  part of the ALCOA guidelines is  Any recorded data should be attributable to a specific researcher.

The correct option is C

There are five principles of the ALCOA guidelines are:

Attributable: Any recorded data should be attributable to a specific researcher or individual who recorded it.Legible: Data should be recorded in a clear easily readable format that can be easily understood.Contemporaneous: Data should be recorded as soon as possible after it is collected to minimize the risk of errors or omissions.Original: Data should be recorded on the original form or in the original file rather than being transcribed or copied from one form .Accurate: Data should be recorded accurately, without errors or alterations, to ensure that it reflects the actual results of the study.

The ALCOA guidelines are an important part of good documentation practices and help to ensure that clinical trials and other regulated industries produce reliable and trustworthy results.

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What is the effect of the angle of the Sun on the insolation an area receives?

Answers

Answer:The sun angle at a place varies over the course of the year as a result of the constant tilt and parallelism of the earth's axis. As the sun angle decreases, light is spread over a larger area and decreases in intensity (energy input per unit area)

Explanation:

What would be a reasonable outcome following the complete disappearance of wolves? Gray wolf Red fox Pronghorn Coyote Vole Snowshoe hare Grass, willow, berries O a Coyotes may increase because one of their primary predators is gone ob Coyotes may decline because they eat wolves c. Voles may decline as coyotes become less abundant O d. Grass, willow, and berries will increase as more elk become available

Answers

Option d, Grass, willow, and berries will increase as more elk become available. In the above given diagram of a food web the reasonable outcome following the complete disappearance of the wolves.

Elk are grazing mammals, thus grasses and certain trees would suffer a rise in population. Similar to wolves elk populations will grow, so would elk's predator populations. Elk-hunting and elk-eating predator populations would have a greater food source. An increase in a food supply increases the amount of food available to the entire population, allowing disappearance of wolves to live and procreate. Grass , willow and berries will increase

The complete question is:

What would be a reasonable outcome following the complete disappearance of wolves?

a ) Coyotes may increase because one of their primary predators is gone b ) Coyotes may decline because they eat wolves.

c )  wolves may decline as  wolves become less abundant

d ) Grass, willow, and berries will increase as more elk become available.

reference image is provided below.

As more elk become available.

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What would be a reasonable outcome following the complete disappearance of wolves? Gray wolf Red fox

What is the relationship between TSCA, RCRA, CERCLA, and Lautenberg Act?

Answers

TSCA, RCRA, CERCLA, and the Lautenberg Act are all environmental laws in the United States, addressing chemical regulation and hazardous waste management.

The relationship between TSCA (Toxic Substances Control Act), RCRA (Resource Conservation and Recovery Act), CERCLA (Comprehensive Environmental Response, Compensation, and Liability Act), and the Lautenberg Act is that they are all important environmental laws enacted in the United States to address various aspects of environmental protection and hazardous substances management.TSCA, enacted in 1976, grants the Environmental Protection Agency (EPA) the authority to regulate the manufacture, import, use, and disposal of chemicals in order to protect human health and the environment.RCRA, passed in 1976 and amended in 1984, establishes a framework for managing solid and hazardous waste. It sets standards for the proper management of hazardous waste from generation to disposal, including regulations for storage, transportation, treatment, and disposal facilities.CERCLA, also known as the Superfund Act, was enacted in 1980. It provides a comprehensive framework for addressing hazardous substance releases and cleaning up contaminated sites. It establishes a trust fund, known as the Superfund, to finance the cleanup of hazardous waste sites and holds responsible parties liable for the cost of remediation.The Lautenberg Act, officially named the Frank R. Lautenberg Chemical Safety for the 21st Century Act, was enacted in 2016. It amended and updated the TSCA to enhance chemical safety regulations. The Lautenberg Act provides the EPA with additional authority to evaluate and regulate both new and existing chemicals in commerce, including the requirement to conduct safety assessments and take appropriate actions to mitigate risks associated with chemicals.In summary, TSCA, RCRA, CERCLA, and the Lautenberg Act are all significant environmental laws in the United States, with each addressing different aspects of chemical regulation, hazardous waste management, and environmental cleanup.

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Two populations have been geographically isolated from each other for many generations.
Which statement is most likely correct about the two populations?
O They can still produce viable offspring with each other.
O They can't reproduce with each other.
O They look very similar to each other.
O Their gene pools are highly similar.

Answers

Answer:

The most likely correct statement about the two populations that have been geographically isolated from each other for many generations is "Their gene pools are highly dissimilar."

When populations are geographically isolated from each other, they are unable to interbreed, therefore, they evolve independently from each other. Over time, different selection pressures and mutations cause genetic differences to accumulate between the two populations. These genetic differences will become evident when the two populations are brought back together. If the genetic differences are large enough, the two populations may no longer be able to interbreed and produce viable offspring.

Discuss how horticulture will create job opportunities or green business in your community​

Answers

The production and processing of fruits, vegetables, flowers, aromatic and medicinal plants are all part of the burgeoning field of horticulture in agriculture.

Landscapers and horticulturists are employed by hotels, health farms, and vacation resorts to enhance their surroundings, while managers of nurseries and florists run successful businesses, particularly in major cities, in the horticulture sector. In horticulture-related fields, horticulturists work as gardeners, growers, therapists, designers, and technical advisors.

Due to the abundance of work opportunities in the academic, research, and development fields in both the commercial and public sectors in India and overseas, horticulture has emerged as one of the greatest career possibilities.

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Prokaryotes live in extreme environments, where eukaryotes cannot live. List at least three such environments where you would expect to find prokaryotic cells, but likely not eukaryotic cells.

Answers

Answer:

Hyperthermophiles (above 80°C).

Acidophiles (usually at pH 2.0)

Alkaliphiles (extremely high pH value 9 to 13)

Extreme halophile

Explanation:

is a plant a cell, a tissue or an organ

Answers

All plants are organs

What would be the most likely result of a low concentration of sugars and ions in the cell’s vacuole?

The plant would oof.
The plant would stop photosynthesis.
The plant would stay rigid.
The plant would wilt.

Answers

Answer: BБББББ

Explanation:

photosynthesis

Hello please help all help is appreciated

Hello please help all help is appreciated

Answers

Answer:

50%

Explanation:

Outline the history of epidemic disease in the new world including the carriers and types explain how diseases were spread to the new world

Answers

Answer:

Epidemic diseases in the New World started when Cortez went to conquer the Aztecs and the Inca and he ended up spreading disease killing thousands. They were spread by the rise of agriculture and through trade. The carriers of these diseases were bird, humans, and animals. Diseases included syphilis, tuberculosis, flu, and typhoid fever.

Explanation: I got a 100% on Edge.

Sorry I'm late :(

Brainliest Maybe?

what is the tube connecting the ovary to the uterus called

Answers

Answer: Fallopian tube

Explanation:

The fallopian tube is where eggs travel from the ovaries to the uterus

What are biological pumps and Carbonate pump? In ocean...

Answers

Answer:

The carbonate pump is sometimes referred to as the “hard tissue” component of the biological pump. ... While the biological carbon pump fixes inorganic carbon (CO2) into particulate organic carbon in the form of sugar (C6H12O6), the carbonate pump fixes inorganic bicarbonate and causes a net release of CO2

Explanation:

most likely find
1 nen show high
verall levels of viole
e resources that are
sily protected
oort on to Capela​

Answers

Answer:

U have to use one language english or spanish dont switch it up

Explanation:

we dont get wut u r trying to say

How could you investigate the lowest possible effective dose to use against a particular strain of bacteria

Answers

Stimulations were ran to examine the effects of changes in dosage distribution and antibiotic exposure frequency on community resistance patterns.

What are Antibiotics ?

Antibiotics are antimicrobial substances that are active against microorganisms. Antibiotic drugs are widely utilized in the treatment and prevention of bacterial infections since they are the most significant form of antibacterial agent. They can either kill or hinder bacterial growth. A small proportion of antibiotics have antiprotozoal action. Antibiotics are ineffective against viruses such as the common cold or influenza; instead of antibiotics, medications that decrease virus growth are referred to as antiviral drugs or antivirals. They are also ineffective against fungi; antifungal medicines are those that hinder the growth of fungus.

What is Antibiotic resistance ?

Antibiotics are antibiotics that are used to prevent and treat bacterial infections. Antibiotic resistance arises when bacteria adapt to the usage of these medications. Antibiotic resistance develops in bacteria rather than people or animals. These bacteria can infect humans and animals, and their infections are more difficult to treat than infections caused by non-resistant bacteria.

Antibiotic resistance raises medical expenses, lengthens hospital stays, and increases mortality.

The world urgently needs to modify the way antibiotics are prescribed and used. Even if new medications are found, antibiotic resistance will remain a big threat unless behavior changes. Changes in behavior must also include efforts to minimize the spread of illnesses such as immunization, hand washing, safer sex, and excellent food hygiene.

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