Two distinct bands appear in a single lane at the completion of an SDS-PAGE analysis of an unknown protein. Select one: a. These bands represent two subunits of a homodimer. b. Each band represents a different sized subunit of a multimeric protein. c. Each band represents a protein subunit with different charge to mass ratio. d. These bands represent two subunits of a heterodimer. e. These bands represent two separate subunits of identical size.
Answer:
b. Each band represents a different-sized subunit of a multimeric protein.
Explanation:
SDS-PAGE analysis allows the separation and discrimination of proteins according to their molecular weight. The technique separates proteins in an electromagnetic field.
The SDS-PAGE technique makes proteins move in solid support -gel- by the action of the electric field. The distance reached by each protein is proportional to their molecular weight. The protein separation from a mixture results in bands that reflect their size.
SDS is a detergent that denaturalizes the protein and sets a relation charge size, such as that the motion of the protein in the gel is proportional to its weight. The bigger the protein is, the stronger interaction with the polyacrylamide gel there will be. The speed of displacement in the electromagnetic field is inversely proportional to the protein size.
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Answer:
Option A
Explanation:
There are 2 identical Cells and has same original number of
chromosomes!
I hope this helps.
If there are wastes in our bodies, through homeostasis, our bodies try to get rid of those wastes. What two systems directly remove wastes from the human body? O circulatory & immune immune & nervous excretory & musculoskeletal respiratory & excretory
Answer: Excretory and immune systems
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Answer:
The second choice.
Explanation:
The river moves faster which brings in more soil and dirt from the banks which is where A is located.
Answer:
A
Explanation:becasue the water is faster ,so ebertyime there’s an explosion the Easter just carries the particles away.
compare the effect of human activity and natural processes on watersheds
Answer:
What effect do human activities have on natural resources?
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
this is somewhat similar
What is are local winds in your own words but be more detailed about what you say.
I think local winds is like somewhere where it is usually windy with high pressures. For example see breezes, land breezes, and etc.
Hope this helps!
Which of these best describe a Punnett Square Shape?
O a) Circle with 4 Parts
Ob) Square with 4 Parts
Oc) Triangle with 3 parts
Answer:
Option b, Square with 4 parts
Hope this helps!
Select all that apply.
Tragically, the United States lost astronauts in accidents involving:
Challenger
Columbia
Apollo 11
Viking 11
Vostok 1
How many new, unique cells are produced by the end of meiosis? *
None. All the cells are identical.
1
2
4
Answer:
4
Explanation:
Which of the following statements is NOT true of photosynthesis?
Photosynthesis captures and uses energy from the Sun for daily activities.
Photosynthesis captures and stores energy from the Sun.
Photosynthesis requires carbon dioxide and water.
Photosynthesis stores the energy from the Sun in molecules of sugar.
Answer:
photosynthesis captures and uses energy from the sun for daily activities
Explanation:
Plz help more bio multiple choice!
Answer:
d. Antibody
Explanation:
Antibody is a protein that recognizes and binds to antigens!
I hope this helped!
What Is the location of the instructions that code for traits?
Answer:
Traits are coded for in DNA, specifically in genes.
Explanation:
DNA, as you probably already know, is made up of long sequences of nucleotides of A's, T's, C's, and G's. When transcripted into mRNA and translated into proteins in ribosomes, the order of these nucleotides signal which amino acids to produce for the protein. Proteins are extremely important and have many roles throughout the body, which means they actualize the code of DNA into physical traits. I hope this helped.
Contrast the contraction of the a disease by the environmental, heredity/genetic and pathogenic pathways.
Answer:
Explanation:
Contraction of a disease by the environment, the environment is said to influence something certain traits either by amplifying them or prevent them from being expressed. Some disease tends to strive in environment that is favorable while some disease don't find expression where the environment is not conducive even though they are presents in the gene of the individual. Environment could include family, area where the individual lives, food, peer
While Contraction of disease that are heredity/genetic and having pathogenic pathways is high this is because any disease that is hereditary can be passed to successive generation through the inheritance of such gene from the parents this increase the likelihood of reoccurrence of such disease in a family where the parents has it.
what is the element irons family name?
Group 8 is a group of chemical elements in the periodic table. It consists of iron, ruthenium, osmium, and hassium. They are all apart of the transition metals family.
I hope this helps!
Answer:
transition metals
Explanation:
GIVING BRAINLIEST TO CORRECT ANSWER!
What would cause water to turn from a gas to a solid?
A) Take energy out of the system
B) Put energy into the system
C) Increase the water’s mass
D) None of the above
Answer:
A
Explanation:
It takes or releases energy during phase change
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Why don’t all organisms have the same available energy
Answer:
The reason why all organisms don't have the same energy is because of the food they eat.
Explanation:
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Answer:
Temperature: Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. pH: Each enzyme has an optimum pH range.
Explanation:
Thomas Malthus was an economist who influenced Darwin's developing theory of evolution. Malthus observed that the birthrate among humans exceeded the death rate. If this trend continued, soon there would not be enough resources to support human population growth. He reasoned that the only things capable of stopping human population growth were famine, disease, and war. Darwin applied this thinking to animals and plants as well, noting that far more offspring were produced than survived to a reproductive age. 2. How did Charles Darwin build on the work of Thomas Malthus to develop the idea of evolution by natural selection
Answer:
The work of Thomas Malthus help and influence Darwin Thomas to refine his theory of natural selection by explaining that there is a meaningful competition between the individuals of a particular species or population for a specific resource such as food or shelter.
Thomas Malthus predicted that the human population is reproducing faster than its death race and will lead to growing faster than space and food supplies needed to sustain it. Darwin concluded further that If all offspring of almost any species survived for several generations, they would overrun the world and therefore a healthy and meaningful competition is present and to overcome this natural selection takes place as the individual adapt will ultimately survive.
In the carbon cycle, atmospheric carbon dioxide is converted into organic material by which process? a) transpiration b) cellular respiration c) decomposition d) photosynthesis
Answer:
The correct answer is d) photosynthesis
Explanation:
Photosynthesis is the process by which plants transform inorganic matter from their external environment into organic matter that they will use for their growth and development. It basically consists of the production of sugars from C02 (carbon dioxide) in the air, minerals and water with the help of sunlight. In this reaction, oxygen molecules are released and carbohydrates are fixed in the plant. Plants absorb sunlight through a pigment called chlorophyll. Not only can plants fix CO2, so do certain bacteria and green algae. Photosynthesis is conditioned by internal plant factors and external or environmental factors.
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Answer:
Second choice.
Explanation:
Symbiosis is when two organisms help each other, usually benifitting one if not both of the said orgaisms.
A pea plants has two different alleles for flower no color, look at the picture and tell me what to put for the every bit of the graph, look at the photo and tell me what to put
Answer:
The pea plant would produce 1 WW, 2 Wp, and 1 pp. There would be 3 white flowers, and 1 purple.
Explanation:
There were twelve elephants in the clearing.
Biology
Answer:
quantitative data
"quantitative" refers to the amount of something, so if it has something to do with numbers, It's quantitative.
There were twelve elephants in the clearing, which is quantitative data, while the pulse rate of 141 beats per minute is also quantitative data, but the orange fur with black stripes is qualitative data.
What quantitative and qualitative data are there?There are both types of data, such as the quantitative data, in which the quantity can be measured, such as the 12 elephants and the 141 beats, and the qualitative data, which can't be measured but is widely seen in the genetics, such as the coat color of the animals, the skin color of the human, etc.
Hence, there were twelve elephants in the clearing, which is quantitative data, while the pulse rate of 141 beats per minute is also quantitative data, but the orange fur with black stripes is qualitative data.
Learn more about the quantitative and qualitative data here.
https://brainly.com/question/12929865
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The question is incomplete, the complete question is the below.
There were twelve elephants in the clearing.
a pulse rate of 141 beats per minute
orange fur with black stripes
✔
DONE
Which statement describes both a positive impact and a negative impact associated with the effects of nitrogen-enhanced fertilizers?
They increase polluted runoff and damage drinking water.
They increase plant growth and damage drinking water.
They increase denitrifying bacteria and increase plant growth.
They increase both limiting resources and denitrifying bacteria.
Answer:
Option B
Explanation:
Nitrogen fertilizer runoff into the farmlands results into Eutrophication which is a form of nutrient enrichment of the water body. Because of the nutrient enrichment, the productivity of the water increases and hence the oxygen level of the water reduces thereby degrading the quality of water and adversely affecting the aquatic life in the water body
Hence, option B is correct
Answer:
listen to the man... B
Explanation:
A grass starts with 30,000 kJ of energy. How much energy would a cheetah acquire after it ate a zebra that consumed the grass?
30 kJ
300 kJ
3,000 kJ
30,000 kJ
Answer:
it is 300kj
Explanation:
The energy that will be acquired by the cheetah when it consumes the zebra is 30,000 kJ.
Law of conservation of energy
The law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another.
The energy of the grass will be transferred to the zebra when the zebra consumes the grass. Also the total energy of the zebra will be transferred to the cheetah when it consumes the zebra.
Thus, the energy that will be acquired by the cheetah when it consumes the zebra is 30,000 kJ.
Learn more about conservation of energy here: https://brainly.com/question/166559
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Answer:
I'm really sorry but I don't know the answer
Identify which of the following statements does NOT support the
theory of Natural Selection.
A. populations tend to produce more individuals than the
environment can support.
B. individuals adapt to their environments and, thereby, evolve.
C. genetic variation exists within populations.
D. individuals who survive longer tend to leave more offspring than
those who die young.
Answer:D. individuals who survive longer tend to leave more offspring than
those who die young.
Explanation:
what did I do wrong?
what is the difference between elevation and altitude?
Question 12
If an insecticide reduced the population of grasshoppers , what would happen to the population of shrew ?
A. Increase
B. Decrease
C. Remain the same
D. Run amuck
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