Answer:
A nonsense mutation is the substitution of a single base pair that leads to the appearance of a stop codon where previously there was a codon specifying an amino acid
What was the purpose of Mendel's experiments with dihybrid crosses?
A. to determine if it's possible to produce an F2 generation
B. to determine if one trait could affect the inheritance of another trait
C. to determine if traits are controlled by more than one gene
D. to determine if the transforming Factor was DNA or protein
Answer:
B. to determine if one trait could affect the inheritance of another trait
Explanation:
a p 3 x learning
Please help with question
suggest 2 measures to be adopted by a county to fight against smoking
Explanation:
1. Raise Public awareness against it.
2. Stop supply of smoke
Which of the following best describes the connection between cardiovascular disease and
age?
O A. As people age, their blood vessels become more elastic leading to less cardiovascular disease.
O B. As people age, the heart becomes more efficient with each pump, increasing cardiac output
O C. As people age, blood pressure decreases leading to more cardiovascular disease.
O D. As people age, plaque builds up in the arteries increasing vessel resistance, which leads to disease.
Answer:
b
Explanation:
To what extent do enzymes affect the energy of the reaction in the following: reactants, activation point,And products?
Over time, is the Nazca Plate going to get bigger, get smaller, or stay the same size? Use your model to explain why.
Pls fast
Answer:
The Nazca Plate is getting smaller
Explanation:
Although parts of its western boundary with the Pacific Plate are divergent, places where plates can increase.
hope this helps
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During meiosis, two chromosomes did not separate correctly. What may result from this error? A) Chromosomal mutation B) gene mutation C) trisomy D) variation
Answer:
A). Chromosomal mutation.
Explanation:
If this is wrong then it is trisomy.
Which ocean movement do power plants use to produce unusable energy?
Answer:
Tides
Explanation:
The intensity of the water from the rise and fall of tides is a sort of kinetic energy, and tidal energy is generated by the movement of our tides and seas. Gravitational hydropower, which uses the flow of water to drive a turbine to create energy, is surrounded by tidal power.
I have a flashlight in a dark room. Describe what you could do to create a shadow on a wall. What causes the shadow?
Answer: u can make whtever u want, the shawdow i think its a uhh sum2 do with the light and stuff ':l
Explanation:
How can glass be a liquid if it's so hard?
Answer:
Because of the rigidity of glass, it should be a supercooled liquid.
Glass, on the other hand, whether supercooled or not, is neither a liquid nor a solid.
Answer:
Glass must be a supercooled liquid
two factors that will increase a substance's solubility.
Three ways I can come up with are increasing the temperature, increased the amount of solvent, and using a solvent with similar polarity as the solute.
What are some benefits from high biodiversity in natural habitats?
Select all that apply.
greater variety of medicines
O greater productivity of farmland
greater ability to recover after natural disasters
greater variety of food sources
Greater ability to recover after natural disasters and greater variety of food sources. Thus, the correct option is C.
What is natural disaster?A natural event such as a flood, earthquake, or hurricane that causes great damage or loss of life. "The number of people suffering food crises as a result of natural disasters has tripled in the last thirty years.
Biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.
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What was the purpose of harndy and Weinberg work
its shows the percentage of alleles in a gene pool that will remain in equilibrium when there is no new mutation
Which best describes
parasympatric speciation?
A. A physical barrier is formed between two populations.
B. A new species arises in the same location due to behavior changes.
C. A new species arises and is a hybrid of two nearby populations.
Which table shows the expected phenotypes of offspring resulting
from a cross between a black angelfish and a black-lace anglefish?
In codominance, the involved alleles are equally expressed. Heter0zyg0us individuals express both phenotypes. Option A: 0% Silver, 50% Black, 50% Blak-lace.
What is codominance?Codominance refers to a non-mendelian inheritance pattern in which two alleles of the same are equally expressed. There is no dominant or recessive alleles, since non of them hides the expression of the other one in heter0zyg0us individuals.
The phenotype of a heter0zyg0te expresses two alternative variants inherited from each h0m0zyg0us parent.
When two individuals that are h0m0zyg0us and different for a trait are crossed they produce heter0zyg0us individuals.
These heter0zyg0us individuals express both parental phenotypes, as it is an additive expression of their parents' genes.
In the case of angelfish, their color is determined by codominance.
Genotype Phenotype
LL Silver
BB Black
LB Black-lace
Cross: between a black angelfish and a black-lace anglefish
Parentals) BB x BL
Gametes) B B B L
Punnett square) B B
B BB BB
L BL BL
F1) 1/2 = 50% of the progeny is expected to be h0m0zyg0us BB, expressing the black phenotype
1/2 = 50% of the progeny is expected to be heter0zyg0us Bb, expressing the black-lace phenotype
Option A is the correct table:
Phenotype Silver Black Black-Lace
Phenotypic
probability of the 0% 50% 50%
offspring
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What seasonal changes do plants in Michigan and Florida experience during the winter?
A. Plants in Michigan go dormant and lose their leaves. In Florida, plants go dormant and might lose a few leaves.
B. Plants in the Michigan and Florida regions experience the biggest changes due to cold temperatures.
C. Michigan and Florida plants prepare for the cooler temperatures of winter and get ready for a period of dormancy.
D. Michigan and Florida plants receive more sunlight and water, and experience cooler temperatures.
Question 12(Multiple Choice Worth 2 points)
(11.03 LC)
What seasonal change can be seen in Florida birds during the spring?
A. Birds are busy migrating back to their home areas.
B. Birds are getting ready to migrate to warmer places.
C. Birds are busy gathering food to store in their nests.
D. Birds are busy getting ready to come out of hibernation.
Question 13(Multiple Choice Worth 2 points)
(11.04 MC)
In response to cold temperatures, animals in northern states experience seasonal changes. What seasonal changes do they experience?
A. All of the animals respond to the seasonal changes of winter by gathering food and going into hibernation.
B. Animals experience little seasonal change during the winter with the exception of the frog, which goes into a period of dormancy.
C. Animals such as the humming birds have little fat and feathers to keep them warm during winter, and they migrate to Florida for warmer temperatures.
D. Animals such as the hummingbird migrate to Florida to find food before they go into a period of dormancy.
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The seasonal changes that the plants in Michigan and Florida experience during the winter are plants in Michigan go dormant and lose their leaves. In Florida, plants go dormant and might lose a few leaves.
What do you mean by Seasonal changes?Seasonal changes may be defined as the occurrence of changes in seasons like winter to spring, spring to summer, etc.
The seasonal change that can be seen in Florida birds during the spring is birds are busy migrating back to their home areas.
In response to cold temperatures, animals in northern states experience seasonal changes. The seasonal changes that they experience are all the animals respond to the seasonal changes of winter by gathering food and going into hibernation.
Therefore, it is well described above.
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What is extinction? Explain how human activities can lead to extinction of some species.
What are the primary decomposers select all that apply
Answer:
→ Bacteria
→ Fungi
Explanation:
The options that your talking about are:
Plants
Animals
Bacteria
Fungi
Tree (Is this one of your options? I'm not sure because I had this as one of my options.)
Hope this helped! :^)
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Submitted on 4/13/2022 at 2:35 PM (To avoid plagarism, by users whom decide to copy.)
Explain how a mutation near, but outside of, the coding region of Pitx1 may cause a loss of pelvic fins without pleiotropic effects on the pituitary gland and jaw.
Since the Pitx1 gene codes for a protein crucial im lower limns development, a mutation occurring near Pitx1 gene will affect refikjs around the lower limbs but not those far away from it.
What are mutations?Mutations refers to alterations or error that occur which change the original sequence of nucleotides in a DNA molecule.
The Pitx1 gene is a gene that codes for a protein that involved in development of the lower limbs.
A mutation near but outside of the coding region of Pitx1 may cause a loss of pelvic fins without pleiotropic effects on the pituitary gland and jaw because the pelvic fins form part of the lower limbs whole the jaws and the pituitary gland are not found in the lower limbs.
Therefore, the mutation occurring near Pitx1 gene will affect regions around the lower limbs but not those far away from it.
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Why is the patellar stretch reflex beneficial?
Answer:
The Patellar reflex is beneficial because it maintain posture and balance and to ensure that the muscles remain at the length the brain sets.
Explanation:
how does white pigeon occur
Answer:
the genomes in the pigoens DNA can cause certain effects in the pigment in the feathers. Sometimes it is also better for the survival of the animal, so it can survive better in lighter or darker enviornments
Explanation:
Which term represents animals with backbones?
Answer:
I think
Explanation:
I think Vertebrates are animals that have a backbone.
The animal without back bone are called invertebrates
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What percentage of the world does not have access to clean fresh water?
15%
15%
25%
25%
40%
40%
35%
Answer:
25% of the world does not have access to clean fresh water.
Explanation:
ME IS SMART
Members of a class that have the most in common are put into similar groups called an
Answer:
association
Explanation:
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What is the phenotype ratio for the Punnett square?
• 2:1
• 3:1
• 0 1
• 1:1
Which reptiles live in and around swamps or bodies of
freshwater or salt water?.
Answer:
Crocodile, alligator, snakes.
Which of the following best describes the connection between cardiovascular disease and
age?
O A. As people age, their blood vessels become more elastic leading to less cardiovascular disease.
O B. As people age, the heart becomes more efficient with each pump, increasing cardiac output
O C. As people age, blood pressure decreases leading to more cardiovascular disease.
O D. As people age, plaque builds up in the arteries increasing vessel resistance, which leads to disease.
Which of the following best describes the connection between cardiovascular disease and age?
O A. As people age, their blood vessels become more elastic leading to less cardiovascular disease.
O B. As people age, the heart becomes more efficient with each pump, increasing cardiac output
O C. As people age, blood pressure decreases leading to more cardiovascular disease.
O D. As people age, plaque builds up in the arteries increasing vessel resistance, which leads to disease.
[tex] \\ [/tex]
Answer:D. As people age, plaque builds up in the arteries increasing vessel resistance, which leads to disease.Plaque development can restrict these arteries, reducing blood flow to the heart. Reduced blood flow may eventually result in chest pain and shortness of breath A heart attack might be caused by a total blockage.
Answer:
D. As people age, plaque builds up in the arteries increasing vessel resistance, which leads to disease.
Explanation:
Plaque development could restrict the arteries which reduces bloodflow to your heart. Reduced blood flow can result in chest pain and shortness of breath. Worst of all, it can cause a heart attack if theres enough blockage.
Define the meaning of recessive
Answer:
A type of allele which will not be manifested in an individual unless both of the individual's copies of that gene have that particular genotype.
Explanation:
The following graph shows approximately how much water different categories of activities consume cach day. Which of the following activities are correctly arranged from most water
consumed to least water consumed in a typical day?
O Flushing toilet, running dishwasher, taking baths
O Running clothes washer, showering, running faucets
Running faucets, showering, flushing toilet
Running dishwasher, running clothes washer, flushing toilet
The correctly arranged activities from most water consumed to least water consumed in a typical day is option (B) Running clothes washer, showering, running faucets.
How is water used in everyday activities?Water is a vital resource that is used in many everyday activities, including taking baths, flushing the toilet, running the dishwasher, showering, leaking plumbing, and running faucets.
Taking baths and showering are two of the most common ways people use water in their homes. When taking a bath or shower, it is important to be mindful of the length of time spent using water and to use water-efficient showerheads.
Flushing the toilet also uses a significant amount of water. Installing a low-flow toilet or dual-flush toilet can significantly reduce water usage.
Running the dishwasher is another activity that uses water. Dishwashers are more water-efficient than hand washing dishes. Using a dishwasher can save water and energy if used properly.
Leaking plumbing is a common problem in many households, and can result in significant water waste. It is important to address leaking pipes, faucets, and toilets as soon as possible to prevent water waste.
Running faucets can also contribute to water waste. Turning off the faucet while brushing teeth or washing hands can save a significant amount of water over time.
In summary, water is used in many everyday activities, and it is important to be mindful of water usage to conserve this valuable resource.
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How do humans have an impact on the diversity and stability of ecosystems?