Answer:
Heart failure — sometimes known as congestive heart failure — occurs when the heart muscle doesn't pump blood as well as it should. When this happens, blood often backs up and fluid can build up in the lungs, causing shortness of breath.
Explanation:
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What is the answer with explaining
Answer:
EeWw
Explanation:
This question involves two genes; one coding for earlobes and the other for hairline. According to the question, one parent is homzygous recessive for earlobe but homzygous dominant for hairline i.e. (eeWW) while the other parent is homzygous dominant for unattached earlobes but homzygous recessive for hairline i.e. (EEww).
The cross between the two parents is as follows: eeWW × EEww. The following gamete combination will be produced by each parent:
eeWW - eW, eW, eW, eW
EEww - Ew, Ew, Ew, Ew
Using these gametes in a punnet square, the following proportions of offsprings will likely be produced:
All EeWw offsprings
In most cases of multiple myeloma, the excess antibodies found in the blood all share an identical protein sequence (thus they have the same structure). Consider such a case where all of the antibodies are identical and think about the cell(s) of origin. How many different B cell clones gave rise to this immune cancer?
Answer: One single B cell clone gave rise to this immune cancer.
Explanation:
The body's cells divide and grow in a completely regulated manner, following an orderly cell cycle that indicates when a cell should die by apoptosis. With this regulation, it is controlled that there are no aging or mutated cells that grow and affect the organism. Cancer is a genetic disease caused by changes in these genes that control how our cells function. These changes, genetic mutations, can occur randomly in the body or can be inherited from parents. When a cell has its functions altered, they begin to grow out of control and in doing so, form masses called tumors that consume the body's resources and energy and crowd out normal cells, preventing them from fulfilling the biological functions necessary for life. Practically, any cell can become a cancer cell and migrate to other areas of the body.
Multiple myeloma is a type of plasma cell cancer. These cells are found in the bone marrow (tissue inside the bones) and are an important component of the immune system, which is made up of several types of cells that work together to fight pathogens and disease. Some cell types are B and T lymphocytes, and myeloid cells such as macrophages, dendritic cells, etc. When B cells respond to an infection with the participation of T cells that present pathogen-derived antigens to them, they mature into plasma cells. Plasma cells produce antibodies that help the body attack and destroy pathogens as well as cancer cells. These antibodies are proteins that bind to antigens that are also proteins found on the surface of the pathogens or cells to be attacked and "mark" them for destruction by other types of immune cells, such as macrophages or neutrophils.
When the plasma cells become cancerous and grow out of control, this is called multiple myeloma, and the mutated plasma cells produce abnormal antibodies. The overgrowth of plasma cells in the bone marrow can crowd out normal blood cell-producing cells, causing low blood cell counts. This can cause anemia which is characterized by a shortage of red blood cells, and thrombocytopenia which means a low level of platelets in the blood causing increased bleeding and bruising. Another condition that can occur is leukopenia (a shortage of normal white blood cells), which can cause problems fighting infections.
Then, the abnormal antibodies produced by the cancerous plasma cells will have the same amino acid sequence and therefore the same structure. Remember that an antibody is a protein, and proteins are a polymer of amino acids. This amino acid sequence is determined by the genes since each gene consists of a sequence of nitrogenous bases and every three bases read by the ribosomal apparatus (the one that synthesizes proteins), an amino acid is synthesized. Therefore, if we consider that cancer originates from a single cell that suffered a mutation in its genes and began to divide in an uncontrolled manner, the daughter cells (which are genetically identical to the mother cell) derived from this mutated cell will have the same genes (in this case, altered because they divide and grow in an uncontrolled and deregulated manner). This tells us that a single mutated B cell gave rise to this cancer.
Which of the following is not typical of a capillary?
Group of answer choices
Virutally all fluids pushed out at a capillary bed are taken up again
The exchange of substances between the blood and interstitial fluid takes place across the thin endothelial walls of the capillaries
Osmosis from blood proteins tend to pull fluid back in
Blood pressure tends to drive fluid out of capillaries
Answer:
its it the first options
Explanation:
I really don't know
From large to small:
RBC, WBC, platelets
RBC, platelets, WBC
WBC, platelets, RBC
WBC, RBC, platelets
Answer:
WBC, RBC, platelets
Explanation:
Took a medical class
Analyze the property of water you investigated and provide some real-world applications of the importance of this property of water. I did Surface Tension. Please Help!
Answer:
Water (H
2O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue. It is by far the most studied chemical compound[18] and is described as the "universal solvent"[19] and the "solvent of life."[20] It is the most abundant substance on the surface of Earth[21] and the only common substance to exist as a solid, liquid, and gas on Earth's surface.[22] It is also the third most abundant molecule in the universe (behind molecular hydrogen and carbon monoxide).[21]
8.Explain how is small intestine designed to absorb digested food.
9. Write two differences between the nutrition in amoeba and human beings.
10. Fungus can be harmful and useful. Give an example showing both of these traits of fungus.
Answer:
10. Fungus are useful as they act as decomposers and decompose the dead things. Fungus are harmful as they can decompose fruits, grains and plants etc.
Which of the following best
describes what a constraint is
when you are designing
something to solve a problem?
A. A constraint is something that makes it easier to solve the
problem
B. A constraint is information that you can read to help you solve
the problem.
C. A constraint is a limitation that must be taken into account
when inventing your design.
Answer:
C. A constraint is a limitation that must be taken into account when inventing your design.
A tall plant is crossed with a short plant, and the progeny are all intermediate in size between the two parental plants. If the intermediate F1 progeny were allowed to self-pollinate, and the F2 progeny were also intermediate in size, but following a normal distribution, this would suggest
Answer:
A tall plant is crossed with a short plant, and the progeny are all intermediate in size between the two parental plants. If the intermediate F1 progeny were allowed to self-pollinate, and the F2 progeny were also intermediate in size, but following a normal distribution, this would suggest polygenic inheritance.
Explanation:
Two or more genes contribute to the determination of a certain trait in polygenic inheritance.
What is polygenic inheritance?When a tall plant and a short plant are crossed, all the offspring fall between the two parents plants in terms of height.
It would indicate polygenic inheritance if the intermediate F1 progeny were permitted to self-pollinate and the F2 progeny had intermediate sizes and followed a normal distribution.
Consequently, one personality trait is managed through is controlled by at least two other genes, at least two additional genes.
Therefore, If the intermediate F1 progeny were allowed to self-pollinate, and the F2 progeny were also intermediate in size, but following a normal distribution, indicate polygenic inheritance.
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Discuss the mechanism of formation of proteins and their properties
Answer:
Mechanism of formation of proteins:
The Protein Synthesis Mechanism. Protein synthesis consists of a peptide chain employing tNS as a blueprint for the precise sequence to supplement amino acids and mRNA.
One of the first stages in the protein synthesis system is transcription. The additional mRNA strand shall be produced in accordance with DNA Base Nitrogen Code. The polymerase enzyme of RNA blinds to one of the double helix RNA molecules
Explanation:
During the synthesis, transcription, and translation of proteins, two processes occur. DNA is a blueprint for making the messenger RNA when transcribed (mRNA). The nucleus of eukaryotic cells is transcribed. Translation takes place when the mRNA exits the nucleus and is placed into the ribosome in eukaryotic cell cytoplasms. The genetic code in mRNA is read and utilized for protein production during translation. Translation has three steps: starting, elongating, and ending. Beginning: the ribosome binds the mRNA and the tRNA. Extension: amino acids given to the developing protein chain one-time. The tRNA connects the anticodon with the mRNA codon and transports the appropriate amino acid each time peptidyl transmission establishes peptide bonds among amino acids.
Termination: when a stop codon is present (UGA, UAG, UAA) the tRNA detects the stop codon and releases the translation and ends.
Physical Properties of Proteins:
Taste and ColorProteins are normally colorless and tasteless. They are uniform and crystalline.
Shape and dimensionsThe proteins range in form from simple crystalloids to lengthy fibrillary structures. Two different form patterns
Were acknowledged:
A. Globular protein – Sphere shaped and most commonly occurs in plants, e.g., seeds and leaf cells. These are packs that makeup protein chains fold and crumble, such as pepsin, destine, insulin, ribonuclease, etc.
B. Fibrillary protein- Thread-like or ellipsoidal, usually in animal muscles. These proteins have been used in most of the protein structural research. For example, myosin, fibrinogen, etc.
Weight of moleculesThe proteins usually contain huge molecular weights from 5 to 103 to 1 to 106. It may be mentioned that molecular weight values of several proteins are nearly 35,000 and 70,000 or several.
Nature of ColloidsProteins are very slow to diffuse and hence may produce extensive light dispersion in solution, leading to apparent turbidity, because of their huge size (Tyndall effect).
DenaturationDenaturation refers to alterations in protein characteristics. It's the lack of organic activity, in other words. In many cases, denatured protein molécules tend to form big aggregates and precipitate solutions, and coagulation is followed by the process of denaturation.
Nature of AmphoteryProtein is amphoteric, like amino acids, i.e. it acts as both acids and alkalis. The movement of the latter in an electrical field depends on the net cargo of the molecule. The net load depends on the pH value. Every protein has an isoelectric point (pl) fixed value at which it moves in an electric field.
Capacity Ion Binding
Proteins can generate salts based on their netload, both with cations and anions.
SolubilityProtein solubility is dependent on pH. At an isoelectric point, solubility is lowest, and with rising acidity or alkalinity increases. This is because when protein molecules exist as cations or anions there are large repulsive interactions between ions, as all molecules have the same sign at an excessive charge. They are therefore more soluble than isoelectric.
Activity OpticalThe polarised light plane is turned to the left by all protein solutions, i.e. levoratotory.
Every cell in an animal is separated from other cells and from the extracellular
environment by a cell (plasma) membrane. Which of the following are found inside
the cell membrane?
The structure that is present inside the cell membrane is cellular fluids and organelles. The correct option is E.
What is cell membrane?The cell membrane, also known as the plasma membrane, is detected in all cells and serves to distinguish the cell's enclosure from the outside environment. The cell membrane is made up of a semipermeable lipid bilayer.
Inside plasma membrane is present cytoplasm which is a cellular fluid and cell organelles.
Thus, the correct option is E.
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The missing options of the question are:
A. CiliaB. BloodC. Cellular fluidsD. OrganellesE. Both C and D are correct.Bert has blonde hair (b). Molly has brown hair (B), but her genotype is Bb, meaning she carries a recessive blonde allele. What is the likelihood of Bert and Molly's second child having brown hair?
Answer:
50%
Explanation:
Iif you do a punnet square you get Bb, Bb, bb, and bb
since blond is represneted by the recessive bb it's a 50% the child will have blond hair
Biomagnification results in higher amounts of toxic substances for organisms on the food chain
True
False
Answer:
Biomagnification results is higher in amount of toxin substances so the answer is true
Explanation:
how does Fibrocartilage receive it's nutrients?
Answer:
There are no blood vessels in cartilage. As a result, the nourishment of cells inside the cartilage matrix is reliant on nutrients diffused through the matrix from blood capillaries in the perchondrium and/or surrounding tissues.
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Answer:
3iy52oiul3yht
Explanation:
twehnemd
According to the concept of enthropy what will likely happen to most molecules over time?
Answer: They'll break down
Explanation:
Entropy is regarded as a measurable physical property which is associated with uncertainty and randomness. Entropy relates to the second law of thermodynamic, that has to do with how energy spread out.
There's an increase in the degree of randomness in a positive entropy and this ajwsgs brings about a breakdown of the affected molecules
What was the stimulus in this action?
Which phrase best describes the dependent variable in an experiment?
Answer:
This question lacks options, the options are:
A) The variable that is measured
B) The variable that is most common
C) The variable that you can see
D) The variable that is manipulated
The answer is A
Explanation:
Dependent variable in an experiment is the variable that responds to the changes or alterations made to the independent variable. It is the variable that is measured and recorded in an experiment.
For example, in an experiment conducted to test the effect of different fuels on the speed of an automobile. The speed of the automotive using different fuels (independent variable) is measured in kilometer per hour. Hence, the speed is the dependent variable.
how does replication ensure each cell has a complete set of DNA
Answer:
During replication a new strand of DNA is synthesized when the other strand is a template to guide the process. Every time the order of the bases in preserved so that DNA can be accurately replicated over and over with identical genetic information.
The layer of soil that contains the most organic material is called the
a. A
C C
b. B
d D
Answer:
That layer is called the a horizon, so the answer is A.
Explanation:
Consider the scenario in which Mutants A and B are grown in a medium that contains His, but does not contain Trp. For this scenario, sort the descriptions that apply to Mutant A or B.
Remember:
Mutant A: Overproduces His and cannot produce Trp
Mutant B: Cannot produce His and overproduces Trp
Answer: Attached below is the missing part of your question
answer
Mutant A
1) Requires tryptophan in the growth medium or from a donor mutant
2) Must form nanotubes to obtain it's required amino acid in this scenario:
Mutant B
1) Requires histidine in the growth medium or from a donor mutant
2) Does not need to form nanotubes to obtain it's required amino acid in this scenario:
Explanation:
Mutant A ( Over produces His and cannot produce Trp )
1) Requires tryptophan in the growth medium or from a donor mutant ; This is because the Mutant is an auxotroph for tryptophan.
2) Must form nanotubes to obtain it's required amino acid in this scenario:
This is because growth medium of the mutant is supplemented with histidine
Mutant B ( cannot produce His and overproduces Trp )
1) Requires histidine in the growth medium or from a donor mutant :
This is because Mutant B lacks the biosynthetic pathways necessary for histidine production
2) Does not need to form nanotubes to obtain it's required amino acid in this scenario: because the Mutant cell can easily take up the required amount of Histidine from its surroundings.
• Describe genetic______ and gene_________ as mechanisms of evolution.
Answer:
genetic is branch of science deal with study of heredity and genes
genes is segment of DNA which transfer parental character from one generation to another
Compared to ocean crust near deep-sea trenches, crust near ocean ridges is ____.
Select one:
a.
younger
b.
the same age
c.
older
d.
magnetically reversed
Answer:
a. younger
Explanation:
HI friends good morning
describe how the skin cells, neurons, muscles and blood cells you have observed relate to the function of skin nerve, muscle and blood tissue
Answer:
When cells work together to perform a specific function, that group of cells is called a tissue. Cartilage is a type of connective tissue made from many cells. Other types of tissues in your body include your muscles and skin. Complex multicell organisms have many different types of tissues, all comprising two or more types of cells.
15.
Semen and urine both exit the body through the _____.
seminiferous tubules
testes
urethra
vas deferens
What will be produced if their DNA molecule is replicated?
Answer:
the dna would be the same.
In transcription, the DNA sequence of a gene is transcribed (copied out) to make an RNA molecule. Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.
Explanation:
What did each of the bottles represent? What does the water represent?
Answer:
The bottles represent the left and right sides of the heart. The water represents blood that flows through the circulatory system.
Explanation:
Which answer option below describes the best way to increase the accuracy of a
confidence interval calculation?
The accuracy of a confidence interval calculation can be increased from 95% to 99%.
Thus, option C is correct.
What is confidence interval?A confidence interval contain a population parameter in a specified proportion of the time, which can be computed using the given confidence level from a limitless level of individual sample.
The proportion of the range consists of the true value of the factor that will be identical to the confidence level.
In most of the confidence interval examples, the confidence level chosen is 95%. and it can be raise up to 99%.
It cannot estimate the plausible values of the unknown parameter of the population.
Two types of confidence interval observed such as accuracy which is defined based on whether the confidence interval contains the true population parameter or not.
Secondly, the precision defined in terms of the width of a confidence interval.
Hence, option C is correct.
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Which of the following organelles can be found in plants AND animals?
A. Mitochondria
B. Chloroplasts
C. Vacuole
D. Cell wall
Answer:
Mitochondria can be found in plants and animals
34.
The ore of aluminium is called
A.
Magnesium
B.
Bauxite
Aluminate
Manganese
Answer:
Aluminium can be extracted (uneconomically) from some clays but the most common aluminium ore is a material called bauxite. First the aluminium ore needs to be mined, then the bauxite is refined into alumina (aluminium oxide). Large amounts of electricity are used to smelt the alumina into aluminium metal.
The answer is B, bauxite
Explanation:
The action force in the cell is:
Answer:
The push of the first object on the 2nd object. friction.
