In the gel electrophoresis, the DNA fragments are repelled from the negative pole of the electric field.
What do you mean by Gel electrophoresis?Gel electrophoresis may be defined as a technique that separates DNA, RNA, and proteins on the basis of their molecular weight.
As we all know, DNA fragments are negatively charged in nature, and hence they always move towards the positive pole of the electric field.
Therefore, in the gel electrophoresis, the DNA fragments are repelled from the negative pole of the electric field.
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In order for complete exclusion from an area to be avoided, ____________ can occur whereby similar sympatric species evolve slightly different ecological niches.
In order for complete exclusion from an area to be avoided, resource partitioning can occur whereby sympatric species evolve in different niches.
What is resource partitioning?The expression 'resource partitioning' makes reference to the use of the same resources (e.g., food) by different species.
Resource partitioning is fundamental for maintaining suitable levels of biodiversity in a given ecosystem.
In conclusion, in order for complete exclusion from an area to be avoided, resource partitioning can occur whereby sympatric species evolve in slightly different niches.
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The cells are first placed in freshwater by making a wet mount slide of red onion cells. What type of solution environment are you starting with?
The type of solution environment you are starting with is isotonic.
What do you mean by Solution?The solution may be defined as a homogeneous combination of one or more solutes disbanded in any solvent compound.
The isotonic solution may be defined as any solution that contains an equal concentration of solutes on both sides of the membrane. This causes neither the cell to shrink nor to swell.
It overall maintains the same osmotic pressure at a given temperature.
Therefore, the type of solution environment you are starting with is isotonic.
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Help me out please? It's for nnq
Answer:
Eukaryotic cells have a nucleus, prokaryotic cells do notEukaryotic cells contain organelles that prokaryotic cells don't, like the endoplasmic reticulum and golgi apparatus.Sperm cells contain only 1 set of each chromosome.MitosisPLEASE ONLY RIGHT ANSWERS SO I PASS THIS GRADE
The diagram shows a model of the nitrogen cycle.
Which role do decomposers play in the nitrogen cycle?
A. They break down wastes and return nitrogen compounds to soil.
B. They take up nitrogen gas directly from the atmosphere.
C. They take the nitrogen found in soil and turn it back into nitrogen gas.
D. They take up the usable forms of nitrogen found in soil
Answer:
D. They take up the usable forms of nitrogen found in soil
Which of these consumes other organisms for food?
Answer:
predator/carnivor
Explanation:
you didnt really give answer choices, but one of these should be it :)
it could also just be called a consumer
Need help plsss I will give u 100 points
Answer: Mrs.Connor
Explanation:I just want to go with is the flow.
The three parts of the diagram above are in chronological order. In the space below,
identify the blue segment and the yellow segment, then describe and explain the
process that has occurred. (a four to six sentence paragraph is expected!)
Transcription is the copy process of a segment of the DNA template strand to produce mRNA. The blue segment is DNA, and the yellow segment is mRNA.
What is transcription?The first step before protein arrangement is to synthesize messenger RNA, mRNA.
Transcription is the synthesis of the messenger RNA, mRNA. This event occurs in the nucleus and uses fragments of DNA molecules to do it.
When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments: the coding strand and the template strand.
The coding strand goes in direction 5' to 3', The complementary strand -template strand- grows in direction 3' to 5'.
The template strand is the one that is going to be complemented by the mRNA. RNA polymerase is in charge of reading the original DNI strand for mRNA synthesis.
mRNA molecule grows complementing DNA base sequences. This is,
DNA mRNA
adenine ⇔ uracil
guanine ⇔ cytosine
thymine ⇔ adenine
cytosine ⇔ guanine
Once mRNA synthesis is over, the molecule leaves the nucleus to start the transcription process in the cytoplasm.
Answer:
The blue segment is DNA moleculeThe yellow segment is mRNA molecule1- DNA molecule
2- Separation of the DNI molecule into two strands and mRNA molecule growing.
3- mRNA molecule already synthesized and separated from DNA
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Atp is important for chaperone protein function. Why would protein import into mitochondria be disrupted if atp were depleted from inside mitochondria?.
Answer:
The protein could slip back out of the mitochondria during transport
Explanation:
The trophoblast is mostly responsible for forming the ________
The trophoblast is mostly responsible for forming the placental tissue. The trophoblast is the outer layer of the blastocyst.
What is the trophoblast responsible for forming?Trophoblasts are cells forming the outer layer of a blastocyst, which provides nutrients to the embryo, and develops into a large part of the placenta.
They are formed during the first stage of pregnancy and are the first cells to differentiate from the fertilized egg.
Thus, The trophoblast is mostly responsible for forming the placental tissue.
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Why is evolution so important for understanding biology? Explain your answer in 1-2 sentences.
Cell theory states all of the following, except
a. all organisms are composed of one or more cells
b. the basic unit of life is the cell
c. all cells arise from pre-existing cells
d. cells can neither be created or destroyed
Answer:
d. cells can neither be created or destroyed
First two statements were given by Schleiden and Schwann and the the third statement was given by Virchow.
What change is observed in a distribution curve for a trait affected by directional
selection? (1 point)
o it shifts to the right and to the left.
o it shifts either to the right or to the left.
o it shifts to the right.
o it shifts to the left.
The change that is observed in a distribution curve for a trait affected by directional selection is that it shifts either to the right or to the left, which is the second option.
What is directional selection?Natural selection is process by which heritable traits conferring survival and reproductive advantage to individuals tend to be passed on to succeeding generations and become more frequent in a population.
Natural selection has the following types;
Directional selectionDisruptive selection Stabilizing selectionDirectional selection, is a type of natural selection in which an extreme phenotype is favored over other phenotypes. This causes the allele frequency to shift over time in the direction of that phenotype.
Therefore, the change that is observed in a distribution curve for a trait affected by directional selection is that it shifts either to the right or to the left.
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Evaluate each of the statements below. Select those that accurately describe the role of genes and chromosomes in the process of inheriting a specific trait. Choose all THREE that apply. Question options:
Chromosomes are made of DNA.
There are 26 pairs of chromosomes in humans.
Alleles are the different forms of a gene that can exist.
Chromosomes contain genes that control the inheritance of traits.
Genes are made of chromosomes and contain all of the genetic information for an organism
Please help! Thank you! :)
Which of the following is NOT a function of the lymphatic system?
a.) carries fat-soluble vitamins to the blood
b.) absorbs protein
c.) collects and returns lost fluid to the circulatory system
d.) traps bacteria
Answer:
Absorbs protein
Explanation:
Please help me Please help me Please help me
Answer: Guidelines
Explanation:
4. A goal to help you improve academically and personally could be to take 30 minute breaks every hour or so while doing school work. Taking breaks every now and again to stretch, eat, move around, and breathe allows you to relax a little and refresh yourself. This improves your mood and understanding, as well as your ability to continue working and to succeed.
5. (I don't know what your lesson is, so I'm going to infer/give you a guideline.) Aspects of this lesson could help in future endeavors by giving you skills and knowledge that will improve future productivity and alleviate potential struggle in future situations.
Thinking about the number of carbon atoms in glucose and in pyruvic acid, explain why there is one molecule of glucose on the left side of the arrow and two molecules of pyruvic acid on the right side of the arrows
Answer:
Each glucose molecule has 6 C atoms, while each pyruvic acid molecule contains 3 C atoms. As a result, there must be two molecules to hold all six C atoms.
Explanation:
Which of the following pollutants commonly make their way to bodies of
water via agricultural runoff?
1. Fertilizers
11. Pesticides
III. Eroded soil
Answer: i believe the answer is I and II only
Explanation:
Answer: its i, ii and iii
Explanation:just did it
what are Two Specialized Tissues/Cells Involved With the Respiratory System
Answer:
cilia cells, goblet cells
Explanation:
Explain the important role that your nose plays in your breathing. Help me
Answer:
The nose allows oxygen to come into your body.
On Earth, the plants and the oceans store carbon dioxide from the atmosphere. What results when a factor, such as the clear-cutting of large stands of forest, disrupts this process?
global warming
overpopulation
ozone depletion
soil erosion
It would increase the level of carbon dioxide thereby leading to global warming and is denoted as option A.
What is Global warming?
This is defined as an increase in the average air temperatures close to the Earth surface.
This is as a result of collection of carbon dioxide (CO2) and other air pollutants in the atmosphere.
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Question 3
1 pts
The original base sequence of a segment of DNA is: GCCATCGGA. Which sequence would be a result of a deletion mutation to this DNA?
a.GCCATCGA
b. GCCAACGGA
c.AGGCTACCG
d. GCCATCCGGA
Answer:
A
Explanation:
In the sequence of answer A, the letter in [CGGA] has been removed in the mutated sequence [-CGA].
cell wall of xylem is rich in
Answer:
lignin
Explanation:
Lignin is a water resisting material i.e., waterproof. So xylem carry water to all plant tissues so xylem cells are under water pressure all times which may collapse the xylem cell so it is coated with lignin to safeguard itself
Which technology is used to study the crystal structure of rocks and minerals?
The study of crystals allows scientists to understand how minerals crystallize as well as their internal structure, relationships, and distribution of atoms, ions, and ionic groups inside the crystal lattice.
What does mineral mean?Minerals are materials that the Earth naturally forms. Minerals are typically inorganic, solid, and have a crystal structure. They are created naturally by geological processes. A single chemical element or, more frequently, a combination may make up a mineral.
Do rocks contain minerals?A mineral is an organic substance that occurs in nature with unique atomic structures, chemical compositions, and physical qualities. In most cases, two or more elements that have been mingled together by erosion and weathering make up the sand.
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Describe what would happen to zoarcid fish population after an earthquake closes the opening in the sea floor
The zoarcid fish population would probably stand the chances of going into extinction as they would be negatively affected.
What is the effects of an earthquake?An earthquake is a natural disasters that can occur under the sea waters leading to the closure of opening on the sea floor called vents.
These vents are important openings that help the seafloor aquatic organisms to reproduce through circulation of the chemistry of the water.
Therefore, the zoarcid fish population would probably stand the chances of going into extinction as they would be negatively affected.
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The lymphatic system: has a pumping mechanism to move fluid. includes areas of high concentrations of APCs, T and B cells. is the site of B and T cell clonal deletion. collects fluid from around the brain and spinal cord. is very impermeable to extracellular fluid.
The lymphatic system: has a pumping mechanism to move fluid includes:
Includes areas of high concentrations of APCs, T and B cell.Is the site of B and T cell clonal deletion.What are the 6 lymphatic organs?Lymphoid organs are:
Bone marrow. Thymus.Lymph nodesSpleen. Tonsils.Mucous membranes.Thus, option "A and B" is correct, it helps in pumping mechanism to move fluid.
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The purpose of reproduction is to pass on?
Answer:
Traits obtained through heredity.
Which of the following is not a common characteristic of all placental mammals?
Answer:
Sweat glands, while being unique to mammals, aren't present in all mammals. For example, the whale has no sweat glands, but doesn't need them because it lives in the ocean.
Explanation:That's all I know sorry.
The diagram below shows an amino acid.
What group containing nitrogen called?
a) nucleic acid group
b) amino group
c) polypeptide group
d)saccharide group
Glucose in the renal tubules encountering luminal epithelia can be absorbed via the ____________ route by passing through the plasma membrane of the absorptive cell.
Answer:
The word is Transcellular.
4.
Which of the following correctly lists the levels in an ecosystem from largest to smallest?
A. ecosystem, community, population
B. community, ecosystem, population
C. population, ecosystem, community
D. ecosystem, population, community
Answer:
A. ecosystem, community, population
