In the accompanying pedigree, a filled symbol indicates an individual with Huntington disease while a clear symbol shows an unaffected individual. Considering the symbol for individual II-5, you conclude that her father, I-1 is _____ allele for Huntington disease. heterozygous for the autosomal recessive hemizygous for the X-linked recessive
Answers
Individual II-5 is shown with a clear symbol, indicating that she is unaffected by Huntington disease. This means that her father, I-1, must be heterozygous for the autosomal recessive gene associated with Huntington disease.
What is Huntington disease?Huntington Disease (HD) is a progressive, hereditary disorder that affects the central nervous system. It is caused by a mutation in the huntingtin gene, which causes an abnormal form of a protein to be produced. This abnormal protein causes the brain’s nerve cells to break down, leading to a wide range of physical, cognitive, and psychiatric symptoms. These can include problems controlling movement, depression, memory loss, irritability, and difficulty with coordination and learning. HD is a genetic disorder, meaning it is passed from parent to child. There is no cure, but treatments are available to help manage the symptoms.
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Related Questions
Earth's temperature has increased slightly in the last 100 years. Many scientists believe that
the increase is related to human activities, particularly the burning of fossil fuels. What gas
produced in this process has been most closely linked to rising atmospheric temperatures?
A) soot
B) chlorofluorocarbons
C) nuclear waste
D) carbon dioxide
Answers
The gas produced in the burning of fossil fuels that has been most closely linked to rising atmospheric temperatures is carbon dioxide. Option D
What is the burning of fossil fuel?
As a byproduct of combustion when fossil fuels like coal, oil, and natural gas are used to produce energy, carbon dioxide is discharged into the atmosphere.
As a greenhouse gas, carbon dioxide absorbs heat from the sun inside the Earth's atmosphere, creating the greenhouse effect, which causes global warming. The Earth's natural greenhouse effect, which keeps the globe warm enough to support life, is caused by this phenomena.
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Active transport move particles in and out of the cell_____
Answers
Answer:
against the concentration gradient
Explanation:
One of the challenges facing the world today is supplying enough food for the human population. Farming with genetically modified plants is a possible solution to this challenge. What is a concern with using GM plants?
A. Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
B. Farming with GM plants requires less land and energy, which may lead to lower food costs and an economic crisis for farmers.
C. GM plants require more insecticide use, which may increase the chance of chemical residues in the food supply.
D. Scientific studies on GM plants are not available so the effects of GM plants are unknown.
Answers
Answer:
Option A
Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
Describe the Nebular Hypothesis Theory
Answers
Explanation:
The solar nebular hypothesis describes the formation of our solar system from a nebula cloud made from a collection of dust and gas. The nebular hypothesis is the idea that a spinning cloud of dust made of mostly light elements, called a nebula, flattened into a protoplanetary disk, and became a solar system consisting of a star with orbiting planetsWhich of these technologies may have a positive effect on fish supply worldwide?
fish farming
tracking technology
bottom trawling
bigger fishing boats
Answers
Answer:
tracking technology
Explanation:
How can a change in DNA sequence result in a change in phenotype?
Answers
All mutations will result in a change in phenotype, regardless of whether the DNA sequence, amino acid sequence, or mRNA sequence altered.
How does your phenotype result from your DNA sequence?An organism's hereditary genes determine its phenotype, or physical characteristics and behaviours. Genes are specific DNA sections that encode for the creation of proteins and specify unique features.
How is the phenotypic impacted by a Genetic change?New phenotypes are rarely created. Mutations may be inherited and hence transmitted from one person to another. If a mutation produces a novel phenotype that makes an organism more suited to a certain environment, it can swiftly change the attributes of the individuals in a species.
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In C. elegans, cell-cell signaling specifies vulval cell fates, causing the Pn.p, cells to adopt primary, secondary or tertiary fates. Give the predicted effect of the following mutations in each of the cell fates listed (i.e. increase, decrease or no change for each cell type): primary tertiary rationale A. ras (gf) | B. loss of one of the kinases C. ras (gf) plus loss of kinase
Answers
In C. elegans, cell-cell signalling specifies vulval cell fates, causing the Pnp, cells to adopt primary, secondary or tertiary fates. The primary will increase with rate of ras function, decrease with loss of one kinase and no change in ras (gf) plus loss of kinase. The tertiary will have no effect during loss of one kinase but increase with gain of ras function.
(A) The predicted effect of the ras (gf) mutation is that, mutation in each of the cell will have the fate as follows. The gain of ras function will increase in primary and tertiary. More than three of the six VPCs differentiate into vulva cells.
(B) The predicted effect of the loss of one kinase mutation is that, mutation in each of the cell will have the fate as follows. The loss of kinase will have no effect on tertiary and primary will decrease. One of the two daughter cells of P6.p (primary cell) fails to divide further and differentiate into vulval tissue whereas the two adjacent VPCs are normal, resulting in two small ventral protrusions. The defective P6.p daughter cell can be at either the left or right side of the normal daughter cell.
(C) The predicted effect of the ras function plus loss of one kinase mutation is that, mutation in each of the cell will have the fate as follows. The ras function plus loss of one kinase will have no effect on both primary and tertiary. The vulva development is same as in wild type.
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Four equal strips A B C and D were cut from a potato whose cell sap concentration was 28.5%sugar. The strips were placed in sugar solutions of different concentrations as follows;A-10%,B-15%,C-25%,D-35%. 1.What changes would you expect in strips A and D? 2.Account for the changes in A and D.
Answers
Answer: The concentration of sugar in solution D is 35%. Solution D is a hypertonic solution as the solute concentration is more than the potato cell concentration. Therefore, water will move into the cell to equalize the osmotic pressure gradient between the cell and the solution. Hence, strip D will swell.
Explanation:
29. Brain has one son, two grandchildren, and three great-grandchildren. This is example of
O exponential growth.
Odynamic growth.
O linear growth.
Obinary growth.
Answers
This is an example of exponential growth.
Exponential growth refers to a pattern of growth where the quantity or size of something increases at an accelerating rate over time.
In the given scenario, Brain has one son, two grandchildren, and three great-grandchildren.
Each generation is producing more offspring, resulting in a rapidly increasing number of descendants.
The progression from one generation to the next demonstrates exponential growth because each subsequent generation adds more individuals than the previous one.
As the generations continue, the number of descendants grows exponentially larger.
Exponential growth can be observed in various natural and human-made systems, such as population growth, compound interest, and the spread of infectious diseases.
In this case, the number of descendants in Brain's family tree follows an exponential pattern, as each new generation multiplies the number of offspring, leading to a significant growth rate.
Therefore, the example given aligns with the concept of exponential growth.
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Lady beetles with brighter colors are more likely to survive. What are the factors that make lady beetles more likely to inherit brightly colored shells?
Answers
Answer: Bright colors in animals are often a sign that the animal is toxic—and predators avoid toxic prey. Brighter colored lady beetles are more likely to avoid predators than dull-colored lady beetles. Survivors are more likely to reproduce, passing along the bright-colored gene.
Explanation: Brighter colored lady beetles are more likely to avoid predators than dull-colored lady beetles. Survivors are more likely to reproduce, passing along the bright-colored gene.
Answer: Bright colors in animals are often a sign that the animal is toxic—and predators avoid toxic prey. Brighter colored lady beetles are more likely to avoid predators than dull-colored lady beetles. Survivors are more likely to reproduce, passing along the bright-colored gene.
heat goes from A.larger to smaller objects. b.warmer objects to cooler. c.cooler objects to warmed objects
Answers
Answer:
B: warmer objects to cooler
Explanation:
Cooler objects will absorb the heat from any warmer object it comes into contact with.
What is the answer to this question?
Answers
Answer:
DDDDDDDDDDDDDDDDDDDDDDDDDD
Answer:
The answer is C.
Explanation:
This is because for A, this statement says nothing about corundum being yellow which means that this doesn’t apply and is incorrect. For B is pretty much the same as A, this statement about corundum doesn’t say anything about it being able to flavor or being flavorful. Lastly for D, the fact that corundum is hard means it would be impractical and probably impossible to use it as pencil lead because, all lead it doing with a pencil is being crushes and ground into the paper as you write.
Hope this helps.
Consider the following scenario: There are variations in the fur color of mice. Some mice have white fur. Some have dark fur. Foxes more easily catch mice with white fur. What will likely be a consequence of this scenario? (1 point) Mice with white fur will be more likely to survive and reproduce. Brown fur will become predominant. White fur will become predominant. Mice with brown fur will be less likely to pass on their genetic information.
Answers
Answer:
there will be less white mice than brown so brown fur will become predominant
Explanation:
How negative feedback mechanism occurs in blood carbon dioxide levels
Answers
Answer:
If you have elevated carbon dioxide in the blood, the body sends a signal to the lungs to breathe faster to eliminate the carbon dioxide build-up, thus causing a faster breathing rate.
Explanation:
raised carbon dioxide triggers an increase in respiratory rate, which decreases the amount of carbon dioxide, and the respiratory rate falls again.
Select the true statementabout unmyelinated axons:A. action potentials occur everywhere along the length of the axon, and propagation is faster than in myelinated axons.B. action potentials occur everywhere along the length of the axon, and propagation is slower than in myelinated axons.C. action potentials occur only at some points along the axon, and propagation is fasterthan in myelinated axons.D. action potentials occur only at some points along the axon, and propagation is slower than in myelinated axons.E. Unmyelinated axons do not exhibit action potentials.
Answers
Answer:
The correct statement is - option B.
Explanation:
Unmyelinated axons are the axon that lacks the covering of scwann cells that form the myelin sheath which helps in the transfer or transmit the signals faster and more effectively in neurons. It acts as the insulating layer.
In absence of the myelin sheath, the action potential found everywhere along the length of the axon which leads to slow propagation than in myelinated axons.
Thus, the correct answer is - option B.
Answer is leaves of plants
Answers
Answer:
I don't understand
Explanation:
what do you mean
HELP!!!! Time crunch!
Summarize the roles of glycolysis, citric acid cycle, and the electron transport chain in energy generation. (in 2-3 sentences please) :)
Answers
Answer:
Glycolysis is a series of reactions that take place in the cell cytoplasm. It involves the oxidation of glucose into pyruvate (a 3 carbon compound), that produces (overall)ATP and reduced NAD: an enzyme that carries hydrogen. The number of carbons in each of these compounds is indicated in the green circle.
The carriers FAD and NAD bring the hydrogen and it separates to H+ and electrons (e-). The electrons pass from carrier to carrier and loose energy. This is used to synthesize ATP.
However, there are a lot of hydrogen ions, that unless they are removed, they'll cause a large increase in pH. Therefore, oxygen reacts with the ions to remove it and produce water. This is what the oxygen you inhale is used for (in terms of respiration).
Explanation:
:) hope that helps
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Where is the chromatin during interphase
Answers
1. Glucose will react with oxygen in a laboratory setting using a combustion chamber. The reaction is exergonic, with the release of a large amount of energy in the form of heat and the production of carbon dioxide and water according to the following chemical equation:
C₂H₁2O6 + 60₂-6CO₂ + 6H₂O G = -686 kcal/mol
Glucose can also be incubated with cells that completely oxidize glucose, according to the same net chemical equation and with the same quantity of energy release. However, glucose oxidation in cells occurs during a series of steps, rather than in one step like the combustion reaction taking place in a lab. The diagram below shows these steps in terms of the free energy change at each step, as well as the input and output of ATP, NADH, and FADH, at different stages of the process. Free energy change and input/output during glucose oxidationa. A coupled reaction is a pair of reactions occurring together in which the energy released by one reaction is used in bond formation in the second reaction. For example, glycolysis and pyruvate processing form a coupled reaction.
Explain how coupling reactions allows a cell to capture the free energy of glucose oxidation rather than allow it to escape to the environment in the form of heat. Describe how this process affects other reactions in the cell. (3 points)
b. Pose a scientific question that a scientist might ask about how these processes are conserved across phyla. (3 points)
Answers
a. Coupling reactions capture energy of glucose oxidation for ATP production, preventing energy loss as heat. This process affects other reactions by supplying ATP, a universal energy currency, to drive cellular processes.
b. How are the enzymes and regulatory mechanisms involved in glucose oxidation conserved across different species, and what adaptations exist for energy metabolism variations?
In a laboratory setting, glucose reacts with oxygen in a combustion chamber. The reaction is exergonic and results in the release of a significant amount of energy in the form of heat, with the production of carbon dioxide and water according to the given chemical equation. A scientific question that a scientist might ask about how these processes are conserved across phyla is how the enzymes involved in these reactions are conserved across different phyla.Given that the process of cellular respiration is conserved across phyla, it follows that the enzymes involved in the reactions are conserved as well. Enzymes are proteins that catalyze chemical reactions, making them occur more quickly and with a lower activation energy than they would otherwise. Given the importance of these reactions, it is likely that the enzymes involved in the reaction are conserved across different phyla of organisms. For instance, the enzyme glucose oxidase is present in many different phyla and is responsible for the breakdown of glucose into carbon dioxide and water.For more such questions on Glucose:
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PLEASE HELP WILL MARK AS BRAINLIEST
‘Plant and animals are interdependent on each other’, Why do they depend on each other. Write three points to justify your answer.
Answers
Answer:
Animals are consumers and they all depend on plants for survival. Some eat plants directly, while others eat animals that eat the plants. In turn, some plants depend on animals to help spread their seed. Decomposing animal carcasses can also provide nutrients for plants to grow.
Plants and animals depend upon each other as mutual interdependence is must for their survival. Plants provide shelter for animals and they make oxygen for the animals to live. When animals die they decompose and become natural fertilizer plants. Plants depend on animals for nutrients, pollination and seed dispersal
TRUE or FALSE: As time passes, the universe is
becoming more disorderly.
Answers
Answer:
true
Explanation:
Which career would best suit Callie's interests in the scenario below?
Callie would like to pursue a career where she can research ways to improve the nutrition and treatment of domesticated animals
animal Scientist
animal handler
vetenaran
baner
Answers
Answer:
Animal Scientist
Explanation:
For this assignment, you will first research energy resources in your area. Next, you will gather
information about the political, economic, and environmental effects of the worldwide distribution and use
of the resources you use in your community. Then, you will develop a long-term sustainability plan for
your community. Finally, you will create a multimedia presentation of your sustainability plan.
Background Information
Many states and localities have a number of renewable and nonrenewable resources. Renewable
resources include those that can be replaced faster than they are used: solar power, wind power, timber,
and oxygen are just a few examples. Nonrenewable resources cannot be easily replaced. They are used
at a faster rate than they are created. These include oil, natural gas, coal, minerals, and precious metals.
Many states, municipalities, and businesses have sustainability plans. These are guidelines to avoid
depletion of natural resources to maintain balance in Earth's biological systems. As Earth's population
increases, humans will need to continually work to minimize their impact on the planet's resources. A
sustainability plan outlines specific actions and goals that will aid in this important work.
On a global scale, countries create their own sustainability plans because the global distribution of
resources have political, economic, and environmental effects. Their sustainable plans help them manage
resources and the effects of using these resources. The global distribution of resources also affects
states and communities. Sustainability plans involve details outlining how political, economic, and
environmental issues will be addressed.
Answers
The sustainability plan for my community involves replacing non-renewable energy sources like cola with renewable energy sources like solar and wind energy.
What is a sustainability plan?A sustainability plan outlines strategies for sustaining the program, activities, and partnerships and serves as a road map for accomplishing long-term objectives.
A community sustainability plan serves as a guide for creating a location where people can live, work, and play that is socially just, economically viable, and environmentally sound.
Programs for recycling and composting, renewable energy initiatives, and the use of community green teams to identify and prioritize sustainability requirements are some examples.
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Based on this diagram, in this ecosystem fungi and bacteria are the:
primary consumers.
primary producers.
tertiary consumers.
decomposers.
Answers
Answer:
Decomposers
Explanation:
The Fungi and bacteria are found at the very end of the diagram, this means they are decomposers.
which of the following require physical contact between two bacterial cells for dna transfer?
Answers
Transformation and conjugation both require physical contact between the two bacterial cells in order for the transfer of DNA to take place. Option c and d are correct.
In transformation, genetic material is taken up by a bacterial cell from the environment, while in conjugation, genetic material is transferred directly from one bacterial cell to another through a bridge-like structure called a pilus. In both cases, physical contact between the two bacterial cells is necessary for the transfer of genetic material to take place.
The process of transferring genetic material between two bacterial cells requires physical contact between the two cells in some cases, while in others it can occur without direct contact. Binary fission, the process through which a parent cell divides into two daughter cells, does not require physical contact between the two cells for DNA transfer. This is because the two daughter cells created during the process are exact replicas of the parent cell, and therefore contain the same DNA.
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a) Binary fission
b) Transduction
c) Transformation
d) Conjugation
How does convection work in the mantle?
Answers
Answer:
In Earth's mantle, large amounts of heat are transferred by convection currents. Heat from the core and the mantle itself causes convection currents in the mantle. The hot rock eventually cools and sinks back through the mantle. Over and over, the cycle of rising and sinking takes place.
Explanation:
this is the answer for
'select the correct location on the image.
Where are the photoreceptors located inside a human eye?'
Answers
nice I'm going to do this with all the answers i have now
Tc. How could a higher rate of "reusing, reducing, or recycling" change the way money is spent within a society? (1 point)
Answers
A higher rate of "reusing, reducing, or recycling" can change the way money is spent within a society by promoting a more sustainable and resource-efficient economy.
When individuals and communities prioritize reusing, reducing, and recycling, they are likely to consume fewer resources and generate less waste. This shift in consumption patterns can result in cost savings for both individuals and businesses. By reusing items instead of purchasing new ones, people can save money on buying replacements. Similarly, reducing the consumption of goods and resources can lead to reduced expenses for both individuals and businesses.
Furthermore, recycling materials instead of disposing of them as waste can create economic opportunities. Recycling processes can generate income through the recovery of valuable materials that can be reused or repurposed. This can lead to the development of recycling industries and the creation of jobs within the recycling sector.
Overall, a higher rate of reusing, reducing, or recycling can lead to financial benefits for individuals and society as a whole. It promotes resource efficiency, reduces waste generation, and can create economic opportunities through cost savings and the development of recycling industries.
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8. What molecules make up the outside "backbone" of this DNA molecule a.The bonded nitrogenous bases b.The phosphates and sugarsc.The phosphates and nitrogenous basesd.The sugars and nitrogenous bases
Answers
The molecules that make up the outside "backbone" of a DNA molecule are the phosphates and sugars (b), while inside the DNA molecule are the nitrogenous bases that form hydrogen bonds pairs between the strands of DNA, holding them together.
can someone give me the answers and teach me how to do this?
Answers
Answer:
a) B. b
B. BB. Bb
b Bb. bb
b) H. H
h Hh Hh
h Hh. Hh
c) X. x
x Xx. xx
x Xx. xx