help anyone ?!! need answered

Answer:

lies

Explanation:

what do u mean reeeeeeeeee

Answer:

boy

Explanation:

jnubh

The question is incomplete. The complete question is :

Glucose is the preferred carbon source for  Escherichia coli bacteria. Researchers isolated  E. coli-M, a strain of  E. coli with a single mutation that inactivates a key enzyme in one of the three glycolytic pathways  E. coli bacteria use to break down glucose. In an initial experiment to study the effect of the mutation on glucose utilization and  ATP production by the bacteria, the researchers add  2×104  E. coli-M bacteria to 400  mL of a growth medium that contains glucose. To measure the rate of bacterial growth, they monitor the optical density of the culture as a measure of bacterial concentration over time.

(c) Predict the growth rate pattern of the E. coli-M bacteria when they are initially added to the growth medium if the mutation does not interfere with glucose utilization.

(d) Provide reasoning to justify your prediction.

Solution :

c). It is given that Glucose is preferred as the carbon source for the Escherichia coli bacteria or the E. coli-M bacteria. If the growth medium of the E. coli-M bacteria contains a higher concentration of the acetate, then the growth of the bacteria will inhibit without inhibiting the central metabolism.

d). This is predicted because as E. coli-M bacteria grows, it starts secreting acetate. This is known as overflow mechanism. The regulatory interactions mediated by the acetyl-phosphate that plays an important role in the inhibiting growth by the acetate.

Answer:

36 individuals xxyyzz

Explanation:

Available data:

We need to know how many individuals from the F2 are going to be xxyyzz

xxyyzz genotype is the result of a double recombinant event.

First, we need to analyze the given information:

→ Distances between genes

The genetic distance result from multiplying the recombination frequency of each region by 100 and expressing it in map units (MU). So, if we have the genetic distance we can divide it by 100 and get the recombination frequency:

Let us say that region I is the distance between X and Y. And region II is the distance between Y and Z.

GD = genetic distance

RF = Recombination frequency

20MU = RF x 100

20MU/100 = RF

0.2 = RF (Region I)

30MU = RF x 100

30MU/100 = RF

0.3 = RF (Region II)      

Now we have the recombination frequency of Region I and Region II.

→ Interference    

Knowing the interference value will let us know the value of the coefficient of coincidence, which will also lead us to the number of individuals xxyyzz.

I = 40%

I = 1 - CC   ⇒ CC = coefficient of coincidence

Clearing this equation gives us the value of CC

CC = 1 - I

CC = 1 - 40% = 1 - 0.4

CC = 0.6

To calculate the coefficient of coincidence, CC, we can also use the next formula:

CC = observed double recombinant frequency/expected double recombinant frequency

Now, we are interested in knowing the value of the observed double recombinant frequency.

Note:  

So, to get the value of the observed double recombinant frequency, first, we need to get the value of the expected double recombinant frequency. And we can do it because we already have the recombination frequencies in both regions.

expected double recombinant frequency = recombination frequency in region I x recombination frequency in region II

- Recombination Frequency - RI = 0.2

- Recombination Frequency  - RII = 0.3

expected double recombinant frequency = 0.2 x 0.3

expected double recombinant frequency = 0.06 = EDRF

Now that we know the value of the CC and the expected DRF, we can get the observed double recombinant frequency.

CC = observed double recombinant frequency/expected double recombinant frequency

- CC = 0.6

- EDRF = 0.06

CC x expected double recombinant frequency = observed double recombinant frequency

0.6 x 0.06 = observed double recombinant frequency

0.036 = observed double recombinant frequency = ODRF

Finally, as this is a frequency, we need to multiply it by the total number of individuals in the F2 to get the number of observed double recombinant individuals.

- ODRF = 0.036

- N = 1000

Double recombinant individuals = 0.036 x 1000 = 36 individuals xxyyzz.

genes for antibiotic resistance. Bacteria store genes for heavy metal tolerance on r plasmids.

An extrachromosomal genetic component called plasmids is found in many bacterial strains. These little, spherical DNA molecules replicate independently of the bacterial chromosomes. The main hosts of plasmids are bacteria, Achaea, and other multicellular creatures.

The fertility element needed for conjugation is present in the F plasmid. The R plasmid contains a gene or factor that confers resistance to antibiotics. There is a fertility factor F. It has a resistance factor, abbreviated R. Through conjugation, it can transmit genetic information and produce sex pilus.

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Answer:

Killer Whales

Explanation:

They are considered to be the most powerful killers in the ocean, capable of taking down massive prey like whales - hence their name - and even great white sharks. In fact, their hunting strategies are widely attributed to causing the extinction of the largest shark to have ever lived, the megalodon

I hope you found this helpful :)

Answer:

Welcome to Gboard clipboard, any text that you copy will be saved here.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Tap on a clip to paste it in the text box.

Answer: a

Explanation:

Answer:

The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.

On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.

The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.

The blood type is defined by codominance. There are three alleles: Iᴬ (related to blood type A), Iᴮ (related to blood type B) and i. The allele i is recessive, and a homozygous recessive genotype (ii) will culminate in a O blood type (absence of A and B). The alleles Iᴬ and Iᴮ share a codominance pattern.

Therefore, the father must have an Iᴬ allele (because he is blood type A). But we must find out the other allele that he must have so his offspring can present the blood types O and B.

As the blood type O, from the daughter, means that she has a homozygous recessive genotype - ii - and we know that one of her alleles for blood type must come from her father, we can assume that the father has one i allele. The same goes for the mother. If the daughter is ii, then the mother must have an i allele as well.

Putting the two alleles from the father that we have figured out, we can say that the father's genotype is Iᴬi.

We already know that the mother has one i allele. If the son is from the same mother (which is possible), we can assume that the mother will have an Iᴮ allele for sure. As the son has type B blood, we know that he presents an Iᴮ allele. As the father does not present an Iᴮ allele, it must come from the mother and the allele from the father must be an i.

So we can assume that the genotype of the son is Iᴮi.

We can also say that the genotype of the mother is Iᴮi, as the daughter has an i allele from her and the son has an Iᴮ allele from her.

So the genotype of the four family members are:

Father - Iᴬi

Mother - Iᴮi

Daughter - ii

Son - Iᴮi

This can be shown in the following Punnet square:

The Punnet square shows the possible outcomes from this crossing, and indicates the genotypes related to the daughter and the son.

Many proteins can execute their function simply by binding to another molecule. An actin molecule,

The distinctive amino acid sequence of a protein is returned in its unique folded structure. This structure, in turn, decides the protein's function. This is why mutations that alter amino acid course can affect the function of a protein.

Because amino acid order determines protein structure and structure dictates biochemical function, proteins that part a similar amino acid. The ability of a protein to bind selectively and with high affinity to a ligand hangs on the formation of a set of weak, noncovalent bonds.

So we can conclude that  The function of a protein is set by its shape. The shape of a protein is determined by its primary structure.

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Answer:

Ask if any of his/her siblings have vision issues

Ask if any of his/her parents or grandparents have vision issues

Ask if any of his/her children have vision issues

Answer:

a

Explanation:

because humans cause most pollution such as cars,littering ,and toxic gases

In complete dominance, dominant alleles always inhibit the expression of recessive alleles in heterozygous individuals. The F2 is expected to be 9/16 individuals with red eyes and long wings, A-B-, 3/16 individuals with red eyes and short wings, A-bb, 3/16 individuals with black eyes and long wings, aaB-, 1/16 individual with black eyes and short wings, aabb.

Complete dominance is the inheritance pattern in which the presence of at least one dominant allele in the individual's genotype is enougth to hide the expression of the recessive allele.

This is evident in heterozygous individuals who express the dominant phenotype.

In the exposed example,

Cross 1:

Parentals) AAbb x aaBB

Gametes) Ab, Ab, Ab, Ab

                aB, aB, aB, aB

F1) 100% AaBb

Cross 2:

Parentals) AaBb   x   AaBb

Gametes) AB, Ab, aB, ab

                AB, Ab, aB, ab

Punnett Square)     AB        Ab        aB        ab

                   AB    AABB    AABb   AaBB    AaBb

                   Ab    AABb    AAbb    AaBb    Aabb

                   aB     AaBB    AaBb    aaBB     aaBb

                   ab     AaBb     Aabb    aaBb    aabb

F2) Among the progeny, we expect to find

Genotype

Phenotype

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Here are the marks that can be found on a bullet include: Land, Primer dent, Groove and Right or left striations.

A bullet's trajectory is the path it follows from the moment it is fired from the gun until it hits its target or stops. The trajectory of a bullet is influenced by a number of factors, including the initial velocity of the bullet, the angle at which the gun is fired, the weight and shape of the bullet, and the presence of any external forces such as wind or gravity.

The trajectory of a bullet can be calculated using mathematical models, which take into account the various factors that affect its flight path. One thing we cannot use to predict the trajectory of a bullet is the type of gunpowder used in the bullet.

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Image transcribed:

1. What marks can be found on a bullet? SELECT ALL THAT APPLY*

Land

Primer dent

Groove

Right or left striations

2. What is one thing we CANNOT use to predict the trajectory of a bullet?

Answer:

Ask for further explanations

Although part of your question is missing, you might be referring to this full question:  what are the three main components of a transport system of the human body?

The three main components of a transport system are the Heart, Blood, and Blood vessels.

The function of the first main component, the heart, is to pump oxygenated blood throughout the body and receive the deoxygenated blood from the other various parts of the body. This impure blood is then sent to the lungs for oxygenation. The function of the blood is to transport the gases oxygen and carbon dioxide between the lungs and the rest of the body.

Blood also transports nutrients absorbed in the digestive system to all the other organs in the body. The function of the blood vessels is to act as the vessels required to transport blood throughout the body.

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Human gene editing can be ethically controversial for people with religous beliefs as it can be interpreted as "playing God". Another controversy is, even though being able to delete a gene that causes a diseases may not be very debatable, if that is possible, changing other features such as eye or hair colour can be put in the table. Moreover, it is also debatable if some syndromes, whichare not diseases, may be considered as a reason for applying gene edition. It is also important to mention, that nowadays it is not an accessible therapy, due to its complexity and its high economical cost.

Answer:

Explanation:

vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.

Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from  a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.

Navigable Waters of the United States  For the purposes of the Clean Water Act, the term "navigable waters" includes:

all waters used in commerce, including groundwater;

all interstate waters including wetlands, mudflats, and sand-flats; and

all other waters such as lakes, rivers, streams, wetlands and sloughs.

EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters."  The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect.  In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.

Additional executive orders were issued 2015 in 2019.  Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.

Could the requirement for one or more NPDES Discharge Permit apply to my campus?

If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.

Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.

Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.

What do I have to do related to NPDES Discharge Permits?

Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.

French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.

Details of NPDES

1. Metallic luster, does not scratch glass, shows cleavage and has a greasy feel. Mineral name - Galena

2. Nonmetallic luster, does scratch glass, shows cleavage, pink color. Mineral name - Potassium Feldspar

3. Nonmetallic luster, does scratch glass, shows cleavage, has cubic crystals, green color. Mineral name - calcite

4. Nonmetallic luster, softer than glass, breaks into flat sheets, black

color. Mineral name - Biotite

5. Metallic, scratches glass, breaks into uneven surfaces, black streak

color.  Mineral name - pyroxene

6. Nonmetallic, doesn't scratch glass, shows cleavage, colorless streak and has cubic cleavage. Mineral name - halite

7. Bubbles in acid, colorless streak.  Mineral name - Calcite

8. Nonmetallic, scratches glass, shows fracture and has a red color. Mineral name - Magnetite

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Answer:

However, all cells have four common structures: the plasma membrane, which functions as a barrier for the cell and separates the cell from its environment; the cytoplasm, a jelly-like substance inside the cell; nucleic acids, the genetic material of the cell; and ribosomes, where protein synthesis takes place

Explanation:

Hope this helps.

The cellular structure that, is possessed by all cells, is the cell membrane. The correct option is b.

Cellular structures are the components of cells. The nucleus, cell membrane, cytoplasm, and the cell organelle. The cell organelle is present inside the cellular membrane.

The cell membrane is the structure that posses by all cells, as it covers all the organs and the cells.

Thus, the correct option is b. cell membrane.

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Answer:

b

Explanation:

mRNA transcript

The nitrogen cycle is important to humans in the following way: it converts nitrogen into a form that humans can obtain by eating other organisms (option B).

Nitrogen cycle is the natural circulation of nitrogen in a series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.

During the nitrogen cycle, atmospheric nitrogen is converted to nitrogen oxides by lightning and deposited in the soil by rain, where it is assimilated by plants and either eaten by animals (and returned as faeces) or decomposed back to elemental nitrogen by bacteria.

The usable form of nitrogen that is assimilated by plants becomes accessible to humans when they consume the plants, hence, depicting the importance of the nitrogen cycle.

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Carbohydrates are the nutrients that are most frequently employed as an energy source. Monosaccharides are single sugar molecules that serve as the building  for all other sugars and carbohydrates. Thus option B and D are correct.

Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats.

Glucose is created by your body's breakdown of carbs. The primary source of energy for the cells, tissues, and organs in your body is glucose, sometimes known as blood sugar.

A vast variety of both good and bad foods, including bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie, include carbohydrates.

They can take on various shapes as well. Starches, fibers, and sugars are the most common and ubiquitous types.

Therefore, carbohydrates serve as source of energy and building material.

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The subatomic particle that is neutral is the Neutron. (An) electron is a negatively charged particle

According to modern atomic theory, the proton can't move from one energy level to another

With the work of the English chemist John Dalton, the current atomic theory, which has continuously undergone refining, started to blossom at the beginning of the 19th century.

The modern atomic theory holds that atoms are no longer indestructible and now contain electrons, protons, neutrons, and other sub-particles. Isotopes are variations of an element's atoms that can exist.

The concepts of atoms and how they create matter are established by current atomic theory. Atoms are composed of negatively charged electrons revolving around a core nucleus made up of electrically neutral neutrons and more massive positively charged protons.

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Answer:

Location of the Cell Bodies Also, the cell bodies of the preganglionic neuron are located in the brain or spinal cord while the cell bodies of the postganglionic neuron are located in the ganglion. Axons of Preganglionic and Postganglionic Neurons

Explanation:

not really sure what microbes in the plant Falls to grow