Answer:
Acti-stain => They are stable and do not have the property of dynamic instability.
Explanation:
There are different types of stains in the world of science (biological sciences) today. Staining is used to make differentiation between two or more different samples(microbiology).
So, in organisms that has a well defined nucleus we can find actin, keratin and Tubulin in their cytoskeleton as fibres. The staining process or techniques can be used in differentiating them.
Actin can be found in the cells located in the muscles and also very useful in motility.
Acti-stain for instance, acti-stain 488 was used in staining yeast cells and they are stable and whenever they stain, they are fixed.
If autophosphorylation of CheA protein does not occur, then Escherichia coli cells must be _________.
Options are no given in the question. The complete question is as follows:
If autophosphorylation of CheA protein does not occur, then Escherichia coli cells must be_________________.
A. in a gradient of a chemoattractant.
B. in a gradient of a chemorepellant.
C. tumbling.
D. rotating flagella clockwise.
Answer:
A. in a gradient of a chemoattractant
Explanation:
The autophosphorylation of CheA is described as the autophosphorylation of histidine kinase (s) (CheA protein) in the presence of MgCl 2 and ATP.
If autophosphorylation of CheA protein does not occur in Escherichia coli, then the cells of E.Coli undergo methylation events that allow cell in a gradient of chemoattractants which increases the activity of CheA and CheY-P and cells adapt according to the concentration of chemoattractant.
Hence, the correct answer is A.
The graph below shows the temperature of ocean water at different depths. Which part of the graph represents the thermocline? a. AB b. BC c. CD d. DE
Answer:
C
Explanation:
Generally temperature changes rapidly with the dept in aquatic bodies especially the oceans.The thin distinct or transition layer where the variation in temperature with depth is most significant is called Thermocline.
Its represents the gaps which separate the upper mixed layer from the lower deeper water bed below,it therefore represent the layer of mixture of the upper surface warmer water (C) below 200 meters, with the cooler water layer(E) below,from 1000 meters check the attachment.
It is caused by variation in intensity of sunlight.The latter hits the surface water layer and therefore raises the temperature.But,because of decrease in sunlight penetration,with increasing dept, the temperature of the lower water dept decreases.
The population of the Earth is roughly eight billion people. If all free electrons contained in this extension cord are evenly split among the humans, how many free electrons (NeNeN_e) would each person get? Use two significant figures.
Answer:
Explanation:
the same question was in my book hehehe so i am telling this from my book
Drift velocity: 3.32\cdot 10^{-4}m/s
2) 5.6\cdot 10^{13} electrons per person
For a current flowing through a conductor, the drift velocity of the electrons is given by the equation:
v_d=\frac{I}{neA}
where
I is the current
n is the concentration of free electrons
e=1.6\cdot 10^{-19}C is the electron charge
A is the cross-sectional area of the wire
The cross-sectional area can be written as
A=\pi r^2
where r is the radius of the wire. So the equation becomes
In this problem, we have:
I = 8.0 A is the current
is the concentration of free electrons
d = 1.5 mm is the diameter, so the radius is
r = 1.5/2 = 0.75 mm =0.75.10^-3m
Therefore, the drift velocity is:
vd=8.0/(8.5.10^28)(1.6.10^19)π(0.75.10^-3)^2=3.32.10^-4m/s
2)The total length of the cord in this problem is
L = 3.00 m
While the cross-sectional area is
A=π ^2=π (0.75.10^-3)^2=1.77.10^-6m^2
Therefore, the volume of the cord is
V=AL(1)
The number of electrons per unit volume is n, so the total number of electrons in this cord is
N=nV=nAL=(8.5.10^28)(1.77.10^-6)(3.0)=4.5.10^23
In total, the Earth population consists of 8 billion people, which is
N^1=8.10^9
Therefore, the number of electrons that each person would get is:
N^e=N/N^1=4.5.10^23/8.10^9=5.6.10^13
hope it helps
Huntington's disease, which causes degeneration of neurons, runs in Mark's family. Huntington's is a heritable autosomal dominant genetic disease, in an autosomal dominant disease, only one abnormal allele is required to cause the disease in offspring. However, it is possible not all offspring will receive the abnormal allele from an affected heterozygous parent.
Family members that have the disease include Mark's maternal grandfather and Mark's maternal aunts. Mark's maternal grandmother does not have the disease.
Because symptoms of Huntington's disease do not appear until later in life, genetic testing is necessary to determine whether a younger individual possesses the allele for the disease. These tests determined that Mark's mother does not carry the allele for Huntington's disease.
Mark's paternal aunt suggested that Mark create a pedigree to track the disease in his family. Use the symbols provided to complete the pedigree. Each symbol may be used more than once.
Answer:
As it is given that Mark's paternal grandmother and grandfather does not carry the disease. The symbols on the right side of the Punnett represent Mark's paternal family. If both his paternal grandparents are unaffected then his father and paternal aunt are also not affected by the disease.
His maternal grandfather is affected as mentioned and also his maternal aunts are affected. Mark's mother is unaffected as she does not have the disease-causing alleles determined by genetic testing.
Both of the marks parents are unaffected which indicates that marks also do not carry the allele of the disease.
Huntington's disease is an autosomal dominant disorder in which the presence of even one dominant allele can cause the disorder.
The autosomal disorder can not skip a generation, have to be present in every generation.
Condition Given:
Affected Member: Mark's Maternal grandfather and Maternal aunts.
Normal: Mark's Maternal grandmother and Mark's Mother.
As MArk's Maternal Grandfather is affected then his genotype must be Aa because Mark's Maternal grandmother is unaffected (aa), this is the only condition where Mark's mother will be normal.
A- Dominant (Huntington)
a- Recessive
Maternal means on the mother's side and paternal means on the father's side.
The diagram is attached below.
I-1: Mark's maternal Grandmother
I-2: Mark's maternal Grandfather
I-3&4: Mark's Paternal Grandparents
II-1&2: Mark's Maternal aunts
II-5: Mark's paternal aunt
II-3&4: Mark's mother and father respectively will not have the disease as both father and mother of Mark are normal.
Learn more: https://brainly.com/question/9982951
Explain what are co-evolved mutations and how can they help with predicting protein structures?
Answer:
The correct answer is as follows.
Explanation:
Coevolution is a phenomena where two related species evolve at the same time since they share a close relation. For instance, the relation between a predator as its prey or a virus and its hostage. This phenomena helps to predict protein structures, since by revealing the higher order structure of a protein we can predict the structure of other protein that have coevolved with it. This has been used in several studies, such as one 2015 study of Pandini and collaborators entitled "Coevolved Mutations Reveal Distinct Architectures for Two Core Proteins in the Bacterial Flagellar Motor".
11) Assume a population of deer has a crude birth rate of 26 per 1,000/yr, a crude death rate of 15 per 1,000/yr, an immigration rate of 7 per 1,000/yr, and a emigration rate of 9 per 1,000/yr. What is the population growth rate
Answer:
9 per 1,000/yr.
Explanation:
The population growth rate is 9 per 1,000/yr.
The rate of growth of population is determined by the following formula:
Growth rate = B - D + I - E
Where B = birth rate, D = death rate, I = immigration, and E = emigration
In this case, B = 26, D = 15, I = 7, and E = 9. Substitute these values into the equation of growth rate.
Growth rate = (26 - 15) + (7 - 9)
= 11 - 2 = 9
Hence, the growth rate of the deer's population is 9 per 1,000/yr.
Three different small organic ligands can each bind to a protein but only one ligand can bind to the protein at a time. The KD for ligand 1 binding to the protein is 100 nM The KD for ligand 2 binding to the protein is 72 nM The KD for ligand 3 binding to the protein is 9 nM Which of the three ligands binds tightest to the protein?
Answer:
Explanation:
The binding affinity in ligand binding is measured using the equilibrium dissociation constant (KD).
The larger the dissociation constant value, the more weakly the target molecule and ligand are attracted to and bind to one another.
This, in this case study, the ligand that binds tightest to the protein is ligand 3 with a binding affinity of 9nM followed by Ligand 2 and then 1.
The image shows a world map.
60
Which ocean does the prime meridian divide into two
equal parts?
150120
520-15010
EUROPE
Arctic
ASIA
NORTH
AMERICA
Ano
bodan
Atlantic
Ocean
19
AFRICA
15
Pacto
boran
Indian
SOUTH
AMERICA A
coton
AUSTRALIA
O Pacific
00
7
ANTARCTICA
165135'10755' 15 15 15 15 105 135165
Answer:
the arctic ocean, hope this helps!!
The Law of Overcompensation and Overload allows for which of the following in regards to intensity?
A. Progressively increase over a period to time
B. Progressively decrease over a period of time
C. Remain the same
D. Acute decrease over a period of time
Answer:
A. Progressively increase over a period to time
Explanation:
The law of overcompensation states that the environment compensates for any factor by twice the amount and the overload theory states that challenges should be increased while working on a certain task to improve the results.
The laws allow for the following:
Option A. Progressively increase over some time.
The laws can be explained as:
In fitness and sports, the laws of overload and overcompensation are widely used. The overload principle says that the intensity and exercise duration should be increased gradually to see an improvement in endurance, strength and muscles.According to the overcompensation theory, the body recovers from any injury or harm the body does not quit there and will be stronger compared to before.Thus, overcompensation and overload increase over time.
To learn more about overload and overcompensation theory follow the link:
https://brainly.com/question/8109252
The study of changes in phenotype that are not related to changes in the DNA and that may result from the interaction between the genotype and the environment:
Answer:
Epigenetics.
Explanation:
Epigenetics is the study of phenotypic changes which are heritable but not related to changes in the DNA sequence. It is influenced by several factors including the environment.
An example of epigenetics is DNA methylation: addition of methyl group to some part of the DNA that prevents that part from being expressed. Other examples include history modifications.
In summary, Epigenetics describes inheritance through other mechanisms than through the DNA sequence.
The beginning of life for human beings is different from the biological beginnings of other mammals in that it involves the creation of a body and a _______.
Answer:
The beginning of life of human beings is different from the biological beginning of other mammals, since it involves the creation of a body and a brain with the power of reason.
Explanation:
The human being, unlike other animals, his brain has the ability to reason, that is, to be able to manage with an intelligence center.
There are some animals that have developed feelings and that is what makes them be able to look more like humans, but in simple words the rest of the mammals are guided by their natural instinct while man also uses the rational weapon of life. .
the period during which blood is being pumped past the semilunar valves into the elastic arteries
Answer: ejection
Explanation:
"Crossing two yellow mice results in 2/3 yellow offspring and 1/3 nonyellow offspring. What percentage of offspring would you expect to be nonyellow if you crossed two nonyellow mice
Answer:1/8
Explanation:
Large-scale fires can lead to a decrease in atmospheric carbon dioxide,
Please select the best answer from the choices provided
ОТ
OF
Answer:
False
Explanation:
Fires produce carbon dioxide
The study of living and non living things is called
Why is DNA called a macromolecule by scientists? A.)because the nucleotide bases in DNA contain nitrogen atoms which make it large B.)because DNA is a massive polymer that contains many different parts C.)because DNA is made of one large, complex molecule of sugar D.)because purines and pyrimidines connect in DNA to make it a large molecule
Answer:
B.)because DNA is a massive polymer that contains many different parts
Explanation:
DNA is also called Deoxyribonucleic acid and it is important in knowing the genetic composition of organisms. The DNA comprises of phosphate, a sugar called deoxyribose, and four nitrogenous base which are adenine, guanine, cytosine, and thymine.
These constituents named above form a long chain which could be in millions and billions. This is why it is regarded to as a macromolecule because it is a massive polymer that contains many different parts .
Answer:
because DNA is a massive polymer that contains many different parts
Explanation:
Which of the following describes a benefit of membership in a research community?
Answer:
knowledge and valuable resources are shared among scientists
Explanation:
The best benefit and reason for joining a membership in a research community is that knowledge and valuable resources are shared among scientists. Since the entire community is working towards a common goal, then gaining information from everyone in order to get closer to that goal is priceless. Also, the ability to use high-end resources that would be impossible to use as a lone scientist due to its high price is also a very valuable benefit.
Three types of threats to biodiversity are:
habitat loss and fragmentation
the introduction of exotic, or non-native, species
overexploitation, or overharvesting
Determine the type of threat that each of the following statements describes.
a. Small rainforest remnants have less diversity than larger rainforest remnants.
b. Melaleuca trees from Australia displace native wetland vegetation in Florida.
c. Wild American ginseng populations have declined as a result of increased demand for the roots.
d. A wetland is drained to make room for a housing development.
e. Florida panthers were geographically cut off from other panthers about 100 years ago.
f. Cod are caught faster than they can reproduce.
g. South American rodents called nutria eat wetland plants and cause bank erosion in the United States,
h. Some fishing nets damage the seafloor.
The specialized soft tissue manipulation technique used to ease the pain of conditions such as fibromyalgia, movement restrictions, and temporomandibular joint (TMJ) disorders is known as _____.
Answer:
myofascial release
Explanation:
receptors are needed for which types of cell signaling
Answer:
Ion channel-linked receptors
Explanation:
Cell-surface receptors are involved in most of the signaling in multicellular organisms. There are three general categories of cell-surface receptors: ion channel-linked receptors, G-protein-linked receptors, and enzyme-linked receptors.
Receptors are needed ion channel-linked receptors, G-protein-linked receptors, and enzyme-linked receptors cell signaling.
What are the 3 types of Signaling receptors?
There are three general categories of cell-surface receptors ion channel-linked receptors, G-protein-linked receptors, and enzyme-linked receptors.
What receptor means?
A molecule inside or on the surface of a cell that binds to a specific substance and causes a specific effect in the cell.
To learn more about cell receptor , here
https://brainly.com/question/11985070?referrer=searchResults
#SPJ2
how is mitosis different in plants and animals A. in plants, a new cell wall forms to split the cell B. in plants , the DNA is not duplicated C. in animals there is no g0 phase or g2 phase D. in animals the DNA is one circular chromosome
Answer:
A. In plants, a new cell wall forms to split the cell
Explanation:
In animal cells, they don't have a cell wall. During mitosis, they just split the cell membrane in order to create 2 new cells. In plant cells, they have cell walls. During mitosis, they create a new cell wall and place it in-between the 2 cells to create 2 new cells.
Which activity involves a chemical change?
A. Ice melting into liquid water
B. A metal rod being bent into a ring
C. Colorless egg becoming a white solid
D. Salt dissolving in water
SUBMIT
Need help now pls!!
option C is correct........
.. Please follow me and mark as brainliest
What does swelling of the Lymph nodes indicate
Answer:
Swelling of the lymph nodes is a sign that they are being overworked.
Explanation:
Unnecessary waste could be building up in your lymph nodes and this can also signal that you may have an infection.
Hope this helped! :)
As a health care professional, why do eukaryotic parasites need to be reported within 7 days instead of immediately
Answer:
Because there will be no trace of any infection before 7 days because eukaryotic parasites start spreadinv in 7 days and lasts till one month.
Explanation:
Eukaryotic parasites needed to be reported after 7 days because they start spreadinv in 7 days after exposure and last till one months. Before 7 days there won't be any trace of eukaryotic parasites because they will not have start spreading by then because eukaryotic parasites grow slowly that prokaryotic parasites so there will be slower disease progression.
Most damage caused by eukaryotic parasites is due to their growth inside host cell and eukaryotic infections are difficult to treat because their physiology is similar to that of man.
Eukaryotic parasites are parasites that live inside their host causing damage and having nucleus and membrane bound organelles.
What must scientists look for in their experiment or their data to make sure it is accurate? A. Sources of error B. Observations C. Hypotheses D. Dependent variables
Answer:
A SOURCE OF ERROR BECAUSE IFTHERE ARE MISTAKES THEN THE INFO ISNT ACCURATE
Explanation:
MARK BRAINLEST PLEASE
To ensure the accuracy of the experiment and the data the scientists must look for the sources of error.
What are variables?Any characteristic that can have different values is a variable.
What are the types of variables?Variables are of following types:
Dependent: These variables vary and their value depends on independent variableIndependent: These variables they are the cause. They are fixed and on their value the value of dependent variables depend.What is the meaning of accuracy of the experiment?How closely the outcome of an experiment matches the right or recognized value is considered its accuracy.
To learn more about accuracy, experiment and variable here,
https://brainly.com/question/13201093
#SPJ3
who is the father of genetics
Answer:
The father of genetics is Gregor Mendel. Gregor Mendel was considered the father of genetics during the 19th century.
Hope this helps! :)
Which activity is part of managing water resources?
studying water to see whether it is polluted
taking a long hot bath to stay warm
drinking water and using it for swimmig and boating
transporting water to areas where it is needed
First and Last ones I think. Not sure.
Answer: D
Explanation: Studying water isn’t managing it, and taking a long bath isn’t either. Drinking water isn't really saving or managing so D.
Lysosomes are responsible for
Answer: the digestion of macromolecules, old cell parts, and microorganisms.
Explanation:
Answer:
(in the explanation)
Explanation:
This is a membrane-bound cell/organelle that includes digestive enzymes. They are included in many cell processes. They decompose or break down excess and worn down cells. They can build up your immune systems and kill and virus or bacteria.
1. How many bands did you detect in the lane with undigested plasmid? What size(s) were they? Explain each band. a. We detected there to be one band in the lane with the undigested plasmid.
Answer:
The aim is to eliminate organic matter by disintegrating it with said chemical compound
Explanation:
There are chemical compounds that clean the inorganic layers and others the organic ones.
In the case of sodium hydroxide, this hydroxide is capable of breaking down organic material by removing and removing it from surfaces.
the clean water act ___
set maximum contaminant levels for drinking water
required industries to reduce or eliminate point source pollution in surface waters
established national ambient air quality standards
requires that pollution control devices be installed on cars and trucks and at factories
Answer: The Clean Water Act required industries to reduce or eliminate point source pollution in surface waters