Answer:
Hydrogen and helium are the two most plentiful elements.
There are almost 500 naturally occurring variants of hemoglobin. Most are the result of a single amino acid substitution in a globin polypeptide chain. Some variants produce clinical illness, though not all variants have deleterious effects. Identify the variant or variants that can be described by each of the three statements by placing the letter corresponding to the statement next to the variant. Statement B may describe more than one variant, and a variant may be described by more than one statement. At least one variant will not match any description. A. The Hb variant least likely to cause pathological symptoms. B. The variants most likely to show pI values different from that of HbA on an isoelectric focusing gel. C. The variant most likely to show a decrease in BPG binding and an increase in overall affinity for oxygen.
Hello. This question is incomplete. You forgot the following answer options:
HbS (sikle-cell HB): substitutes a Val for Glu on the surface.
Hb Memphis:Substitutes onde unchanged polar residue for another of similar size on the surface.
HbMilwaukee: Substitutes a Glu for a Val.
HbPhilly: substitutes a Phe for a Tyr, disrupting hydrogen bondingat the α1β1 interface.
Hb Providence: substitutes an Asn for a Lys that normally decrease in BPG binding and an increase in overall affinity for oxygen B C projects into the central cavity of the tetramer
Answer:
HbS (sikle-cell HB): substitutes a Val for Glu on the surface. (B)
Hb Memphis:Substitutes onde unchanged polar residue for another of similar size on the surface. (A)
HbMilwaukee: Substitutes a Glu for a Val. (B)
HbPhilly: substitutes a Phe for a Tyr, disrupting hydrogen bondingat the α1β1 interface. (B)
Hb Providence: substitutes an Asn for a Lys that normally decrease in BPG binding and an increase in overall affinity for oxygen B C projects into the central cavity of the tetramer (BC)
Explanation:
The above phrases reveal information about some of the natural variants of hemoglobin, which as the question above informs, can have more than 500 variants.
Most of these variants occur due to structural changes that were caused by amino acid substitutions within the nucleotide sequences, which ends up modifying the entire protein, often interfering with its functions, depending on the extent of the mutation and where it happened.
Instinct and Reflex are specific examples
of what type of behavior?
Innate
Learned
Answer:
Innate
Explanation:
Living things are born with instinct and reflex, like how you would attempt to catch yourself if you fell. This does not have to be taught or learned by anyone, instead, it is something everyone knows since birth.
Passive transport involves movement of substances
A. from areas of lower concentration to areas of higher concentration.
B. from areas of higher concentration to areas of lower concentration.
C. from areas in which the concentration has reached a balance.
D. from areas of differing concentrations with the use of cellular energy.
Answer:
Passive transport involves movement of substances from areas of higher concentration to areas of lower concentration.
Explanation:
Passive transport involves the passage of substances through a semi-permeable membrane, as occurs with transport at the level of cell membranes.
Generally, passive transport occurs with the movement of compounds from the space with the highest concentration of a specific substance to the space with the lowest concentration of the same substance, following the so-called concentration gradient. Theoretically, the gradient tends to disappear when the concentrations of substances have balanced out.
Regarding other options:
A. From areas of lower concentration to areas of higher concentration. It is a feature of active transport.
C. From areas in which the concentration has reached a balance. There is no passive transport
D. From areas of differing concentrations with the use of cellular energy. Energy use involves active transport.
Surface tension is a measure of_____.
Answer:
Newton per metre
Explanation:
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Question 3
Which organism is most similar to humans? Why?
Answer:
Organisms present in tube A are most similar to humans. Like these organisms, humans are obligate aerobes. They require energy to make ATP.
Explanation:
PLATO
Answer:
Organisms present in tube A are most similar to humans. Like these organisms, humans are obligate aerobes. They require energy to make ATP.
Explanation:
plato sample
How do objects get energy
Answer:
An object can convert it's potential energy into kinetic energy. For example see the below figure, where potential energy of water has been converted into kinetic energy. A moving body can transfer some of its energy to set another body into motion. ... So, object what you are speaking about is nothing but energy (mass).
Explanation:
Answer:
An object can convert it's potential energy into kinetic energy. For example see the below figure, where potential energy of water has been converted into kinetic energy. A moving body can transfer some of its energy to set another body into motion. ... So, object what you are speaking about is nothing but energy (mass).
Plz someone help me A cat that weighs 55 N sits on the top of a cat tree. It is 2 m above a 110 N
dog. How does the mass of the animals relate to the force of gravity on
them?
A. The 55 N cat has less mass than the 110 N dog.
O B. The mass of the 55 N cat will be the same as the mass of the 110
N dog after it jumps to the ground.
C. The mass of the 55 N cat is greater than the mass of the 110 N
dog.
D. The 55 N cat has the same mass as the 110 N dog when it is in
the cat tree.
Answer:the 55 N cat has less mass than than the 110 N dog
Explanation:
1. is it possible to be religious and a scientist at the same time?
2. Should religion and science be strictly kept apart?
Answer: Depending on your religion, yes. You might not follow all of the guidelines of the religion, but it can still be practiced.
That is your opinion.
HELP
Put the following carbohydrates in order from smallest to largest: cellulose, fructose, sucrose.
Answer:
fructose∠sucrose∠cellolose.
Explanation:
Fructose is monosacharaide composed of 12 carbon atoms.
sucrose is disacharaide composed of a glucose and a fructose .
while celolose is a poly sacharide made of milions of glucose molecules.
The order of the following carbohydrates from smallest to largest is as follows:
Fructose < Sucrose < Cellulose. What are Carbohydrates?Carbohydrates may be defined as the type of large organic biomolecules that primarily consists of carbon, hydrogen, and oxygen atoms.
These molecules are energy-deriving molecules that deliver energy to living organisms through the process of breakdown. Carbohydrates are one of three essential and main nutrients found in foods and drinks along with protein and fat.
Fructose is a type of sugar known as a monosaccharide which is significantly composed of 12 carbon atoms. While sucrose is an example of disaccharides. It is also a type of sugar that is generally composed of glucose and fructose subunits.
At last, there is cellulose. It is a type of storage sugar that is of polysaccharide nature. Cellulose is an extremely large form of carbohydrate that consists of a number of glucose molecules.
Therefore, Fructose < Sucrose < Cellulose, is the correct order of carbohydrates from smallest to largest units.
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The pH of a solution determines the charge of certain R groups. The pH of pineapple fruit ranges from 3.5 to 5.2. Predict the effect on the activity of bromelain if it is used in a product with a pH of 11. Provide reasoning for the prediction
Answer:
Such change in pH will ultimately change its function.
Explanation:
Hello,
In this case, it is widely known that slight or noticeable changes in pH will affect the present interactions among amino acids in the bromelain (protein-digesting enzyme compound derived from pineapple's stem, fruit, and juice), which are able to change the way it folds and therefore its shape and its function since it will start catalyzing different process due to the different pH.
Best regards.
Auntie Penuela has blood group B and has a daughter of blood O .she says a certain man called Caleb is the child's father .when tested his blood was found to be AB . could he be the child's father . explain your answer fully
We can use the
to measure the acidity or basicity of a solution.
Eukaryotes can have both the mitochondria and chloroplasts.
True
O False
Eukaryotes have both the mitochondria and chloroplasts.
Eukaryotes are regarded as multi-cellular organisms with a well defined
nucleus. They have a nuclear membrane which houses the nucleus in a
different compartment from the cytoplasm.
Plants and animals are examples of eukaryotes and the plants possess
chloroplasts for photosynthesis while the mitochondria is where energy
generating activities of the cells take place for both plants and animals.
Read more on https://brainly.com/question/17850031
On Earth we can easily see Mercury, Venus, and Mars in the night sky. The planets look like they are moving through the stars because the?
Answer:
We can see those planets because there in between the sun and the earth, that's why we can see them, also we can see mars because it is close to earth.
Explanation:
Which of the following has mechanical energy?
A. batteries
B. Berger bun
C. a streched band
D. visible light
please answer quick!!!!!!!!
Answer:
stretched band
Answer:
C. Stretched band i got it right on my test :)
Explanation:
I
1
2.
по-
TO
1
2 - 3
5 16
III
1
2
3
4
5
6
IV
1
What is the relationship between l-1 and lll-3
Answer:
um
Explanation:
Help me on this please
Answer:
II i think because its shaped like a common virus and the others are cell shaped and bacteria shaped
What are breef cattle’s known for
Answer:
here
Explanation:
Beef cattle are cattle raised for meat production (as distinguished from dairy cattle, used for milk production). The meat of mature or almost mature cattle is mostly known as beef. In beef production there are three main stages: cow-calf operations, backgrounding, and feedlot operations.
Four elements that comprise over 95% of the human body are _____.
carbon, hydrogen, oxygen, nitrogen
Answer:
hydrogen, oxygen, carbon, and nitrogen
Imagine a bacterial population of 100 cells. Five of the cells are resistant to sulfonamides, and six other cells are resistant to erythromycin. In the development of drug-resistant bacteria, which of the following selects for resistant bacteria? Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Terms can be used once, more than once, or not at all.
Answer:
39
Explanation:
When u have 100 cells and most of them are resestant to drugs most people have 39 cells
When we have 100 cells and most of them are resestant to drugs most people have 39 cells.
Thus, Bacterial communities invariably include a variety of clonal lineages. Since recombination exchanges across lineages and species mobilize tiny genomic fragments, bacterial populations are not fully asexual.
Recombination, as opposed to de novo mutation, contributes differently to the creation of novel bacterial genotypes in different bacterial populations, and as this contribution rises, clonality in a particular population diminishes.
As a result, there is a wide range of potential population architectures, with only a few bacterial species existing at the extremes of being entirely non-clonal and very clonal. the examination of samples of bacterial isolates that are true representations of the natural population.
Thus, When we have 100 cells and most of them are resestant to drugs most people have 39 cells.
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What’s the greenhouse effect
Answer:
option a
Explanation:
What do grey pentagons represent?
Answer:
The Pentagon is the headquarters building of the United States Department of Defense. As a symbol of the U.S. military, the phrase The Pentagon is also often used as a metonym for the Department of Defense and its leadership.
Explanation:
A characteristic which differentiates eukaryotic cells from
prokaryotic cells is eukaryotic cells have-
A. a cell membrane that controls the flow of materials in and
out of the cell
B. genetic material (DNA) which controls the cell's activities
C. a jelly-like substance called cytoplasm that holds the
organelles
D. a centrally located nucleus that contains the DNA of the
cell
Answer:D.
Explanation: Eukaryotic cells have a nucleus while prokaryotic cells dont. The nucleus store the DNA so that means that prokaryotic cells have their DNA floating around in them while eukaryotic cells have their dn6in the nucleus alone.
Answer:
D
Explanation:
got an 100 on edge :)
what sets of instructions in each human cell that determine inherited traits called?
Answer:
Genes carry the information that determines your traits (say: trates), which are features or characteristics that are passed on to you — or inherited — from your parents. Each cell in the human body contains about 25,000 to 35,000 genes.
Explanation:
You are studying a variety of pea plant that has either red flowers or white flowers. When you cross true-breeding red-flowering plants with true-breeding white-flowering plants, you get all red-flowering plants in the F1 generation. If you then allow the F1 plants to self-ferilize, you observe that 75% of the F2 plants are red-flowering plants, while 25% of the F2 plants are white-flowering plants. Next you make 640 different monohybrid crosses and decide to analyze only the first 8 plants produced from each of these crosses (i.e. a total of 5120 progeny plants total). How many of these crosses would be expected to produce 6 red plants and 2 white plants?
Answer:
199 or 200
Explanation:
The computation of the number of these crosses is shown below:
P (red) = 75% = a
P (white) = 25% = b
Now determine the probability of 6 red + 2 white and then multiplied it by 640
Now use the binomial theorem
now the required probability is
= 28 × (0.75)^6 × (0.25)^2 × 640
= 199.25
= 199 or 200
hence, the number of corsses is 200
why is water important in biological systems
Answer:
keeps us hydrated, helps in digestion
this compound makes up the building blocks for all plant structure. plants can use it for energy and animals eat the plant to be able to get energy from this organic which organic compound is this?
The answer is :-
proteinCoenzymes are organic molecules that help enzymes conduct their reactions.
And, our system can easily build them.
A. True
B. False
Answer:
false
Explanation:
The intricate integrative process in which organ function such as blood pressure is
regulated so that the fluid in internal environment that surrounds billions of cells of
the body stays constant despite changes on external environment is
Answer:From early unicellular organisms that formed in salty water environments to complex organisms that live on land away from water, cells have had to protect a homeostatic internal environment favorable to the biochemical reactions necessary for life. In this chapter, we will outline what steps were necessary to conserve the water within our cells and how mechanisms have evolved to maintain and regulate our cellular and organismal volume. We will first examine whole body water homeostasis and the relationship between kidney function, regulation of blood pressure, and blood filtration in the process of producing
Which of the following statements about chemical reactions is false?
O Chemical reactions result in the formation of new elements not previously in the reaction mixture.
O Chemical reactions in biological systems are accelerated by enzymes.
O Products of chemical reactions can have very different properties than the reactants.
O Chemical reactions involve changes in bonds between atoms.
Answer:
A is incorrect.
Explanation:
Enzymes speed up/assist in chemical reactions by DECREASING the activation energy needed for a reaction. This is what C is saying.
