Answer:
called the north star, always directly over the north pole and a star that is often the brightest start in Ursa minor..
Explanation:
Polaris commonly the North Star or Pole Star and is the brightest star in the constellation of Ursa Minor. It is very close to the north celestial pole, making it the current northern pole star.
hope this answer correct (^^) ....
How can you guarantee a high expression of your protein in any expression vector?
Answer:
protein expression refers to the way in which protein are synthesized, modified and regulated in living organisms.
Explanation:
In the protein research,the term can apply either the object of study or the laboratory techniques required to manufacture proteins.
Explain why mutations that replace S/T/N residues with A/L/W residues in the N-terminal region of transmembrane proteins that function as cell surface receptors could significantly disrupt that utility of these proteins as receptors.
Answer:
Serine (S), Threonine (T) and Asparagine (N) are primary binding sites of carbohydrates, and thereby they are required to form glycoproteins (i.e., glycosylation products)
Explanation:
A transmembrane protein (TP) is a particular type of protein that crosses the cell membrane in order to enable the movement of ions and molecules. Transmembrane proteins are divided into alpha-helical and beta-barrel proteins. The N-terminal region of transmembrane glycoproteins can be required for N-linked glycosylation, which is an enzymatic mechanism capable of attaching oligosaccharides to proteins in order to form glycoproteins (glycans). N-linked glycosylation is a posttranslational protein modification that has distinct functions depending on the cell type and the protein region involved in such modification. For example, in the surface of immune cells, the N-linked glycans are capable of dictating the migration pattern of these cells.
Is your prediction supported by the membrane potential chart?
Answer:
The membrane potential of a resting neuron is primarily determined by the movement of K+start text, K, end text, start superscript, plus, end superscript ions across the membrane. ... Zero voltage across the membrane, as measured by a voltmeter with one electrode inside and one electrode outside the cell.
Answer:
Yes, it is. The chart shows that the initial charge of the neuron is negative. When the neuron is stimulated, sodium ions enter the cell. So, the voltage inside the cell changes to positive. When potassium ions move outward, the voltage decreases until it reaches its previous state.
Explanation:
Jacob calls his friend Mark to tell him the news, and to Jacob's surprise, Mark has heard of MSUD. In fact, Mark says that his wife is a carrier so he got tested to see if he was a carrier as well. After getting tested, Mark and his wife decided to have children because there was no increased risk of their child getting MSUD. Based on this information, Mark and his wife must have the genotype: g
Answer:
Explanation:
Since Mark's wife was a carrier, it means that she is heterozygous for the trait. And after Mark got tested, they decided to have children due to no increased risk if they do have children, it means the condition is not an autosomal dominant condition but a recessive condition because if the condition is dominant, only one copy of the affected allele is needed to increase risk.
Thus, with a no increased risk, it means Mark is normal i.e. carries no copy of the recessive allele.
When curare, a South American arrow poison, is placed on a nerve-muscle preparation, the muscle though a neurotransmitter is still being released from the nerve. Give a possible explanation for the action of curare (be sure to include specific details explaining does not contract when the nerve is stimulated, even how and why).
Answer:
In a muscle contraction,neurotransmitter acetycholine stimulate the post synaptic membrane of the neuron or the sarcolemma of the muscles cells at the motor end plate .This neurotransmission effect leads to the opening of ligand gated sodium channels.
Therefore action potential(Endplate potential) is transmitted across the synaptic juction to to the muscles to bring about contraction of muscles(effector) .Therefore Acetycholine is refereed to as excitatory hormone.
Curare works as competitive inhibitor of acetycholine at the motor end plate. It prevents the binding of Acetycholine with the endplate.Therefore, ligand gated Na+channels can not open, thus End potential can not be generated due to lack of depolarization, thus contraction of muscles is inhibited.
Thus,despite the fact that the neurotransmitter is produced, the curare has blocked the end plate.So, no muscles contraction will occur because ,no place for the the excitatory acetylcholine to bind with.Hence the the muscle cells are in the permanent state of relaxation (resting membrane potential).
Animals poisoned with this substance usually asphyxiate because of paralysis of the diaphragm, external and internal inter-coastal muscles and collapse of the lungs and therefore failure of the entire respiration muscles and system.Thus lack of oxygen from failed breathing.
Explanation:s
In a
Explain the process of breathing begin with inhalation and describe the route that the air takes to the lungs and what happens when the air reaches the lungs include in your description the terms mouth nose pharynx larynx trachea bronchi lungs alveoli carbon dioxide oxygen and capillaries..... PLEASE HELP PLEASE
Answer:
Please find the detailed explanation below
Explanation:
The breathing process is the process of breathing in, also called inhalation and breathing out, also called exhalation. Inhalation and exhalation are important processes for a smooth respiratory experience.
Air (containing oxygen) from our external environment enter our body system via our MOUTH or NOSE. The air then passes from the PHARYNX into the LARYNX or voice box, which connects into the TRACHEA or wind pipe, which conveys the air into the lungs via its branched tubes called BRONCHI. These pipes that air passes through in order to reach the lungs are generally called AIR WAYS.
Inhalation (breathing in) involves the taking in of air into the LUNGS (main organ of respiration). It occurs when the diaphragm (muscle separating the thorax from abdomen) contracts and moves downward towards the abdomen. This allows the lungs to expand, allowing air to enter into the lungs via the NOSE or MOUTH down the TRACHEA or windpipe.
As soon as air reaches the lungs, the air passes through the bronchi (tubular branches of the trachea) into the ALVEOLI or air sacs. The delivery of oxygen in the inhaled air is carried out in the CAPILLARIES (a blood vessel that carries blood) that surrounds the alveoli. This alveoli conveys oxygen from the lungs into the bloodstream and carbon dioxide out of the bloodstream into the lungs (a process called GAS EXCHANGE).
Breathing out or exhalation of the carbon dioxide in the lungs (waste product of respiration) occurs when the diaphragm relaxes and moves upward, causing the lungs to deflate as the carbon dioxide is released through the trachea into the mouth or nose where it leaves the body system.
Explain why chemogenetic based methods of regulating cellular signaling result in poor temporal control of biochemical pathways relative to optogenetic based methods.
Answer:
They use different detecting methods to assess neuronal circuits
Explanation:
Chemogenetics is a technique widely used in neuroscience research to explore signaling interactions by means of genetically modified receptors capable of interacting with small molecules. Chemogenetics was first used to determine the function of the chalcone isomerase gene by inducing mutations that altered its substrate specificity. On the other hand, optogenetics is a bioluminescence-driven genetic technique used to control genetically modified neurons that express light-gated ion channel genes. This technique is also used to monitor neuronal networks. In consequence, optogenetic and chemogenetic techniques have recently been combined in order to analyze neuronal circuits, it by analyzing the same actuator molecule.
What effects would you expect uncontrolled celiac disease to have on children? How do these effects relate to what is shown in the model?
Answer:
Explanation:
Because the villi get damaged, they can’t absorb enough nutrients. So, children might have slow or stalled growth and development because they don’t get enough nutrients.
Answer:
Because the villi get damaged, they can’t absorb enough nutrients. So, children might have slow or stalled growth and development because they don’t get enough nutrients.
Explanation:
PLATO answer
Which source would be the least reliable? a nonfiction book written by a scientist a peer-reviewed scientific journal an encyclopedia an advertisement
Saliva is released by __________ and it acts on _______.
Answer:
Salivary glands, food
Explanation:
Salivary glands release saliva, and it acts on the food and turns into a soft pulpy mass called bolus. Bolus is the simplier form of food which helps in digestion of complex food.
Hope this helps. Mark me as the Brainleist if you want...
Answer:
salivary glands, food
Explanation:
Saliva is released by salivary glands and it acts on food.
Salivary glands produce saliva. The saliva acts on food and creates a soft lump called bolus during the chewing process.
Which list below describes a possible path of rain through the water cycle? (2 points) Group of answer choices Evaporation, condensation, precipitation, runoff Runoff, ocean storage, evaporation, condensation Transpiration, condensation, precipitation, runoff Evaporation, precipitation, runoff, lake storage
Answer:
evaporation,condensation,precipitation,runoff
Answer:Evaporation, condensation, precipitation, runoff
g Glycogen Phosphorylase is phosphorylated by ____________________. Glycogen Synthase Kinase Casein Kinase Protein Kinase G Phosphorylase Kinase Protein Kinase A
Answer:
Phosphorylase kinase
Explanation:
Phosphorylase kinase is a type of regulatory protein kinase which helps in the process of glycogen breakdown.
It sends signals and the process of phosphorylating occurs which then helps in the activation of glycogen phosphorylase and subsequent breakdown of glycogen in the body. This makes phosphorylase kinase the right option.
Prokaryotes, like most living organisms, need movement to locate food and to survive.
Answer:
Explanation:
Prokaryotes, like most living organisms, need movement to locate food and to survive. If a prokaryote needed to move to a new food source, which structure would it use for locomotion?
ions but you do not want to increase the volume of the blood by reabsorbing large amounts of water from the filtrate. Assuming the aldosterone and ADH are both present, how would you adjust the hormones to accomplish the task
Answer:
Aldosterone and ADH are part of the renin angiotensin aldosterone system, this system is a system regulated by the kidney and lungs to be able to raise blood pressure.
Explanation:
This system is a retainer of liquids and water, to increase the blood volume of our body, in this way arterial hypotension is compensated.
Another mechanism with which blood volume can be increased is with the stimulation of thirst, and the need to ingest a liquid because of the dry mouth that our central nervous system perceives.
Both mechanisms prevent hypotension and dehydration.
Research each insect, then compare and contrast the life cycles. You will need to write your observations and thoughts down. Be sure to include and describe each stage of development. Your observations, descriptions, and thoughts should be at least 150 words in length.
Incomplete Metamorphosis Complete Metamorphosis
grasshopper butterfly
dragonfly ladybug
cicada housefly
cockroach honeybee
Answer:
Larva and pupa is present in complete metamorphosis while nymph is present instead of larva and pupa in incomplete metamorphosis.
Explanation:
Complete metamorphosis has four stages i. e. egg, larva, pupa, and adult while the incomplete metamorphosis has three stages i. e. egg, nymph, and adult. Grasshopper, dragonfly, cicada and cockroach have incomplete metamorphosis while ladybug , housefly, butterfly and honeybee have complete metamorphosis. Both type of insects lay eggs and after hatching a baby insect comes out called larva. After sometime this larva transforms from immature to mature, this stage is known as pupa. After pupa, the insect converts into an adult which is ready for reproduction. Nymph is a stage that comes in place of larva and pupa in incomplete metamorphosis. in this stage, the insect is small in size and lack of wings but in adult stage the wings appear.
In the diagram, how many angles are alternate exterior angles with angle 5?
Answer:
One.
Explanation:
The attached figure shows the diagram of the given question.
We need to find how many angles are alternate exterior angles with angle 5?
Exterior angle = Angle that is made outside of the shape
Alternate angle = an angle opposite of a transversal line of another angle.
From the figure, 8, 7, 9, 10, 12, and 11 are the angles that are on the same transversal. 8, 7, 9, 10, and 12 are just exterior. It means that 11 is the alternate exterior of angle 5. So, only one angle is alternate exterior angles with angle 5.
interact to produce a trait in which neither dominant gene can produce its effect in the presence of the other.
O Multiple alleles
Chromosomes
O Carriers
Sex linked genes
Answer:
A
Explanation:
Knowing the epidemiology and causative agent of Legionaries disease what questions would you ask of the victims or of their surviving relatives?
Answer:
Answered below
Explanation:
Legionnaires disease is a type of lung inflammatory disease or pneumonia, which is caused by infection from the bacteria Legionella bacterium.
Legionella bacterium can be spread by inhalation from water or soil. People with weakened immune systems are most susceptible as are smokers. Untreated legionnaires disease can progress to a fatality.
Some of the questions to ask of a victim or of surviving relatives include;
1) Any visits to swimming pools?
2) Source of drinking water?
3)Any visits to fountains?
4) Contacts with victims and their personal belongings?
5)Is any relative or victim immunocompromised? Do they have diseases that might lower their immune response?
6) Are they smokers?
Which of the following phenotypic classes reflect offspring that were generated as a result of a recombination event?
a. vestigial wings, red eyes
b. vestigial wings, purple eyes
c. full wings, red eyes
d. full wings, purple eyes
Answer:
The correct options are: A " vestigial wings, red eyes" and D "full wings, purple eyes"
Explanation:
female parent: vg+pr+/vg pr
(phenotype - full winged and red eyes)
male parent: vgpr/vgpr
(phenotype - vestigial winged and purple eyes)
Of these traits, vestigial wings and purple eyes are recessive traits. Hence, when a recombination event occurs, the offspring can potentially have a wild type trait paired with a recessive trait.
The volume of a right circular cylinder can be approximated as follows:
Volume = πr2h;
where r is the radius of the cylinder and h is the height of the cylinder;
π is a constant that is roughly equal to 3.
Using the simple approximation above, calculate the volume of a right circular cylinder with a radius of 2 meters and a height of 9 meters.
A.
2,916 m3
B.
14 m3
C.
108 m3
D.
324 m3
The correct answer is A.2,916 m3.
What is circular cylinder?A circular cylinder is a three-dimensional geometric shape that consists of two parallel circular bases and a curved lateral surface that connects the two bases. The shape of a circular cylinder resembles a can or a pipe, and it is a common shape in everyday objects and engineering applications.
To calculate the volume of a right circular cylinder with a radius of 2 meters and a height of 9 meters, we need to plug in the given values into the formula: Volume = πr2h. Since π is a constant that is roughly equal to 3, we can use 3 in place of π.
Therefore, the volume of the cylinder is equal to 3 x (2 meters)2 x (9 meters), which is equal to 2,916 m3.
Learn more about circular cylinder at:
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help asap giving branlist!!!!!
Answer:
The answer is option B
Explanation:
In a parasitic relationship, it involves two different organisms of different species.
Mostly one of the organisms that's the parasite mostly benefits by feeding on its host and releasing toxic substances causing harmful effects on the organism.
So from the question the correct answer is the second option
Hope this helps you
Larry recalls his first memory of riding a red tricycle at the age of 4. Larry’s memory is: True False
Answer:
True
Explanation:
False memory refers to remembering an event differently from the way it happened or remembering events that never happened at all.
Larry's memory is a true memory because it doesn't sound like something that could be made up. Also, most children ride tricycles around the age of 4 or even younger.
Hope that helps.
Please help!!!!! science, please explain in sentence cause yes i don’t know where to find these answers !
Answer:
1. DNA replication.
2. rRNA - is called the ribosomal RNA which serve as structural components of protein-making structures known as ribosomes.
mRNA - is called the messenger RNA which serve as temporary copies of the information found in DNA.
tRNA - is called transfer RNA, that ferry amino acids to the ribosome to be assembled.
3. Protein synthesis.
Explanation:
Hope it helps.
During which period did humans first appear on Earth? Quaternary Neogene Paleogene Cenozoic
Answer:
the answer is actually Quaternary, please double check your answer before giving them out to people
we dont want them to get a bad grade
Explanation:
i took the test
E2020
How did Dinosaurs diminished from earth?
Answer:
Hey there
It is believed that the dinoursars diminished from earth through a massive meteorite which weight 2 trillion tons which hit the earth causing maximum heat and it killed all the dinoursars
Explanation:
Have a nice day
Groups of genes coding for related proteins in _ are arranged in operons Bacteria Plants Protests None of the above
Answer:
Bacteria
Explanation:
Operons are the genetic regulatory system that is found in bacteria. Operons are group of genes coding for related proteins in bacteria.
Operon are consists of structural genes and regulating elements that includes operator and promoter. This feature of operons in bacteria allows protein synthesis according to the need of cell.
Hence, the correct answer is bacteria.
What is the relationship between coronary artery disease and a heart attack?
Answer:
C. Coronary artery disease can reduce blood flow to the heart and cause heart attacks
Explanation:
im pretty sure
How are the current and resistance related when the voltage of a circuit is constant?
The current doubles when the resistance doubles because they are directly proportional.
The current doubles when the resistance doubles because they are inversely proportional.
The current is cut in half when the resistance doubles because they are directly proportional.
O The current is cut in half when the resistance doubles because they are inversely proportional.
Answer:
The current is cut in half when the resistance doubles because they are inversely proportional.
Explanation:
Ohm's law states that the electrical current (I) flowing in a circuit is proportional to the voltage (V) and inversely proportional to the resistance (R).
I = V/R
Similarly, increasing the resistance of the circuit will lower the current flow if the voltage is not changed.
HOPE IT HELPS.
Answer:
D
Explanation:
The general function of an enzyme in the body is to ________. The general function of an enzyme in the body is to ________. eliminate waste products from the blood act as a reactant in carbohydrate storage catalyze chemical reactions maintain homeostasis maintain a neutral pH
Answer:
catalyze chemical reactions
Explanation:
An enzyme is a proteinous substance that acts as biological catalysts and increases the rate of biochemical reactions in the body. Enzymes are specific in nature which is as a result of the structure/shape of its building block (amino acid).
Enzymes speedens the rate of a chemical reaction in living systems, which would normally not occur or occur at a much slower rate, without the presence of an enzyme. Enzymes acts on the reactants called Substrates by binding to them to form products but they are not used up in the reaction. Hence, enzymes are not reactants.
Please help me come up with an answer for this question thankyou so much! Compare and contrast the processes of cellular respiration and photosynthesis. Think of as many similarities and differences as you can (things to consider: inputs and outputs, the role of energy, the types of organisms that do each process, the location within cells)
Explanation:
The end result is glucose, with oxygen being the waste product. The two processes are similar in that they both produce energy, albeit in two different forms. They are different in that photosynthesis assembles the glucose molecule, while cellular respiration takes it apart.