Predict the phenotype for expression of the E. coli trp operon enzymes for the following mutants: a) A to U mutation at position 48 of the trp operon leader RNA. b) Deletion from positions 114-121 of the trp operon leader RNA. Explain your predictions taking into account the alternate stem-loop structures of the leader RNA.

Answers

Answer 1
I think the answer is a I believe

Related Questions

Which of the following represents a scenario of potassium cyanide toxicity?

-The substrate-level phosphorylation of glucose generates all the ATP required by the cell.
-Chemiosmosis still occurs in the inner mitochondrial membrane and generates all the ATP during cellular respiration.
-Oxidative phosphorylation that generates most of the ATP is blocked, and oxygen cannot accept the electrons from NADH.
-Electrons cannot be transferred from NAD to NADH, and ATP generation from both the substrate level and oxidative phosphorylation is blocked.

Answers

Answer:

Oxidative phosphorylation that generates most of the ATP is blocked, and oxygen cannot accept the electrons from NADH.

Explanation: Sorry this is late and may be wrong but it is my best guess and here is why:

Potassium cyanide blocks the ETC where the majority of ATP is produced. The ETC is a oxidative phosphorylation process where oxygen is needed as the final electron acceptor of NADH.  

The first answer can be eleminated because oxidative phosphorylation produces the most ATP.

The second answer can be eleminated because chemiosmosis does not generate ALL the ATP during cellular respiration, but does produce most of it. Still they worded it as an "all or nothing" type of question so I don't think it is correct.

The fourth answer may not be correct because NAD does not pass on an electron to NADH. Instead, NADH donstes electrons to the ETC and is then turned into NAD. So the process listed is technically backwords.

Sorry I can't be sure about the answer but this is how I broke it down.

Answer: Should be C

Just took the test on edge <3 you all!!

What is the main light absorbing pigment found in plant leaves?

A) chloroplasts
B) carotenoids
C) grana
D) chlorophyll

Answers

Answer:

pretty sure its d

Explanation:

Answer:

D) chlorophyll

I hope this helps!

Name two parts of the cell that are in the plant cells only

Answers

Answer:

Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole

Explanation:

cell wall and chloroplast

which of the following statesman's is correct.

1.green plants are the only organisms that photosynthesize.

2. photosynthesis turns sunlight into glucose.

3. photosynthesis occurs in the cytoplasm of eukaryotes and prokaryotes.

4.photosynthesis occurs in the chloroplasts of eukaryotes and cytoplasm of some prokaryotes.​

Answers

The fourth statement is the only correct statement since prokaryotes don't have chloroplasts

How can the idea that different minerals are formed in different environments provide evidence for energy and matter cycling?
Please do not copy and put in your own words.

Answers

Answer:

Various environment have unique environmental properties that make up matter.

Explanation:

Life on earth follows a cyclic nature, the energy that is received from the sun is recycled back to space. Similarly, various environments such as terrestrial, aquatic all are possessed different energy and have matter circulating through the ecosystem. Different factors like climate vegetation and other organisms help in the formation of soil which constitutes certain minerals. Similarly, the different region has diverse geologic settings that lead to the formation of diverse minerals such as limestone, sandstone, and resources like coal, petroleum, etc.

which two body system, when working together, give your body shape and allows you to move around, like the boy seen here

Answers

Skeletal muscle – the specialised tissue that is attached to bones and allows movement. Together, skeletal muscles and bones are called the musculoskeletal system (also known as the locomotor system).

What is represented in the diagram? tissue, organ system, organ, cell

Answers

Answer:

i need the diagram but im going to go with my gut and say organ or organ system because you cant draw out a cell in the body and tissue just dont make since.

Explanation:

whale is a mammal give reasons​

Answers

Answer:

Because

Explanation:

Whales, along with dolphins and porpoises, are warm-blooded mammals and breathe air like humans do. There are some significant differences between whales and fish: ... Fish use gills to extract air from water. Whales give birth to live young.

Long legs (L) in racing horses is dominant to short legs (l). Good muscle tone (G) is dominant to weak muscle tone (g). Determine the phenotypes of the F1 generation resulting from a cross between a heterozygous long legged, weak muscled horse and a heterozygous long legged, strong horse

Answers

Answer:

See the answer below

Explanation:

Long leg (L) is dominant over short leg (l) and Good muscles (G) is dominant over weak muscles (g).

Heterozygous long leg, weak muscle = Llgg

Heterozygous long leg, strong muscle = LlGg

       Llgg    x    LlGg

Offspring:

2 LLGg - Long leg, strong muscle

4 LlGg -  Long leg, strong muscle

2 LLgg - Long leg, weak muscle

4 Llgg - long leg, weak muscle

2 llGg - short leg, strong muscle

2 llgg - short leg, weak muscle

Ratio of offspring with long leg and strong muscle = 6/16 or 3/8

Ratio of offspring with long leg and weak muscle = 6/16 or 3/8

Ratio of offspring with short leg and strong muscle = 2/16 or 1/8

Ratio of offspring with short leg and weak muscle = 2/16 or 1/8

The F1 generation resulting from a cross between a heterozygous long-legged, weak muscled horse and a heterozygous long-legged, strong horse

3/8- long leg and good muscle tone3/8- long leg and good muscle tone3/8- long leg and weak muscle tone3/8- long leg and good muscle tone3/8- long leg and weak muscle tone1/-8- shirt leg and good muscle tone3/8- long leg and good muscle tone3/8- long leg and weak muscle tone1/-8- shirt leg and good muscle tone1/8- short leg and weak muscle tone

Given:Long legs (L) in racing horses is dominant to short legs (l)Good muscle tone (G) is dominant to weak muscle tone (g)Cross:a heterozygous long-legged, weak muscled horse - Llgga heterozygous long-legged, strong horse - LlGg

Llgg X LlGg

Gametes:

Lg, lg and LG, LG, lG, lg

Punnett square:

attached as image

F1- phenotypes:

3/8- long leg and good muscle tone

3/8- long leg and weak muscle tone 1/-8- shirt leg and good muscle tone 1/8- short leg and weak muscle tone

Learn more about dominant trait:

brainly.com/question/2114747

Compare rates of succession: primary succession such as on new lava flow vs secondary succession in a forest that recently burned. A. Primary succession is faster than secondary succession B. Secondary succession is faster than primary succession C. Primary and secondary succession usually proceed at the same rate because they both followed a large disturbance. D. Succession rates would depend on the number of early arriving facilitator species.

Answers

Answer:

The answer is option D "Succession rates would depend on the number of early arriving facilitator species"

Explanation:

Ecologists have a solid interest in knowing how communities structure and change over the long run. Indeed, they have invested a ton of energy seeing how complex communities, such as forests, emerge from void land or uncovered stone. They study, for instance, locales where volcanic eruptions, ice sheet retreats, or out of control fires have occurred, clearing land or uncovering rock.

In examining these destinations over the long haul, ecologists have seen steady cycles of progress in natural communities. As a rule, a community emerging in an upset territory experiences a succession of movements in synthesis, frequently throughout numerous years. This arrangement of changes is called natural succession.

Succession is a progression of reformist changes in the structure of an ecological community over the long run.

In primary succession, recently uncovered or recently shaped stone is colonized by living things unexpectedly.

In secondary succession, a territory recently involved by living things is upset then recolonized following the aggravation.

point)
This is turned to bring the object being viewed closer.

Answers

Answer:

Revolving nosepiece

Explanation:

The revolving nosepiece (also called the turret) is the part of the microscope we can turn in order to view an object through different objective lenses. Objective lenses, which provide different levels of magnification (usually 4x, 10x, 40x, and 100x), are all attached to the revolving nosepiece. It allows us to switch lenses from those that provide less magnification to those that provide more. This is how we can see more details on an object we're observing.

You can see what this part of the microscope looks like in the image attached below:

what is the role/function of neurohormones in annelied?​

Answers

Answer:

Phylum Annelida

There is a complex just beneath the brain that functions as a neurohemal organ. The epithelial cells found in this complex may be secretory as well, but this has not been proved. Neurohormones are released from the infracerebral complex into the coelomic fluid through which they travel to their targets.

it it is located at the base of the brain near the pituitary gland it's very small the hypothalamus plays a crucial role in many important functions include releasing hormones regulating body temperature.

Is the process by which simple materials are chemically combined to form more complex materials

Answers

Answer:

synthesesis

Explanation:

your welcome! (:

Use the map to answer the following question:

Answers

Answer:

Hello, what is the questiom=n?

Explanation:

Which of the following is NOT correctly paired with its description?

Answers

Answer:

there is nothing there so how are we supposed to know

Explanation:

Answer:

Explanation:

We aren't able to help because you didn't show us any options. Next time put the Options.

A researcher observes that when two heterozygous plants with red flowers are crossed the resulting offspring include plants with red white, or pink flowers The researcher proposes the rullrypethesis that flower color is the result of independent assortment and incomplete dominance The researchers climesach square value of 7.3 Assuming two degrees of freedom which of the following is the correct Interpretation of the chi-square analysis, using apvalue of 0.05 ? A. The null hypothesis should be rejected because the critical value is less than the calculated value B. The null hypothesis should not be rejected because the critical value is less than the calculated value C. The null hypothesis should not be rejected because the critical value is greater than the calculated value D. The null hypothesis should be rejected because the critical value is greater than the calculated value

Answers

Answer:

the correct answer is A

Explanation:

Chi squared is a statistical test that is used either to test whether there is a significant difference, goodness of fit or an association between observed and expected values. the sqaure for this is less than the statistical value originally found, therefor making the null hypothesis void.

The Chi-square test is defined as the statistically significant difference between the expected frequency and observed frequencies.

The correct option is:

Option A. The null hypothesis should be rejected because the critical value is less than the calculated value

The Chi-square test is based on hypothetical facts to determine the significant difference in the calculated and observed frequencies.

The null hypothesis is rejected because the square for the value is less than the statistical or calculated value originally found. Thus, the hypothesis is null and void.

Therefore, the correct option is A.

To know more about the Chi-square test, refer to the following link:

https://brainly.com/question/15312086

⢀⣀⣠⣤⣤⣴⣦⣤⣤⣄⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⢀⣤⣾⣿⣿⣿⣿⠿⠿⠿⠿⣿⣿⣿⣿⣶⣤⡀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⣠⣾⣿⣿⡿⠛⠉⠀⠀⠀⠀⠀⠀⠀⠀⠉⠛⢿⣿⣿⣶⡀⠀⠀⠀⠀ ⠀⠀⠀⣴⣿⣿⠟⠁⠀⠀⠀⣶⣶⣶⣶⡆⠀⠀⠀⠀⠀⠀⠈⠻⣿⣿⣦⠀⠀⠀ ⠀⠀⣼⣿⣿⠋⠀⠀⠀⠀⠀⠛⠛⢻⣿⣿⡀⠀⠀⠀⠀⠀⠀⠀⠙⣿⣿⣧⠀⠀ ⠀⢸⣿⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⢀⣿⣿⣷⠀⠀⠀⠀⠀⠀⠀⠀⠸⣿⣿⡇⠀ ⠀⣿⣿⡿⠀⠀⠀⠀⠀⠀⠀⠀⢀⣾⣿⣿⣿⣇⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⠀ ⠀⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀⢠⣿⣿⡟⢹⣿⣿⡆⠀⠀⠀⠀⠀⠀⠀⣹⣿⣿⠀ ⠀⣿⣿⣷⠀⠀⠀⠀⠀⠀⣰⣿⣿⠏⠀⠀⢻⣿⣿⡄⠀⠀⠀⠀⠀⠀⣿⣿⡿⠀ ⠀⢸⣿⣿⡆⠀⠀⠀⠀⣴⣿⡿⠃⠀⠀⠀⠈⢿⣿⣷⣤⣤⡆⠀⠀⣰⣿⣿⠇⠀ ⠀⠀⢻⣿⣿⣄⠀⠀⠾⠿⠿⠁⠀⠀⠀⠀⠀⠘⣿⣿⡿⠿⠛⠀⣰⣿⣿⡟⠀⠀ ⠀⠀⠀⠻⣿⣿⣧⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣾⣿⣿⠏⠀⠀⠀ ⠀⠀⠀⠀⠈⠻⣿⣿⣷⣤⣄⡀⠀⠀⠀⠀⠀⠀⢀⣠⣴⣾⣿⣿⠟⠁⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠈⠛⠿⣿⣿⣿⣿⣿⣶⣶⣿⣿⣿⣿⣿⠿⠋⠁⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⠛⠛⠛⠛⠛⠛⠉⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Answers

Answer:

Thats cool, did you make yourself?

Explanation:

Select the correct answer.ASAP

Environmental biotechnologists use bacteria to decompose sulfur liquor, a waste product of the paper industry. Which useful by-product do the bacteria produce?

A.

protropin

B.

ethane

C.

insulin

D.

methane

E.

Carbon dioxide

Answers

the answer is c. insulin

Answer:

a

Explanation:

2. Protein A has a binding site for ligand X with a Kd of 10-6M. Protein B has a binding site for ligand X with a Kd of 10-9M. Which protein has a higher affinity for ligand X

Answers

Answer:

Protein B has a higher affinity for ligand C than protein A

Explanation:

Binding affinity is a measure of the strength of the bonds or interactions between a single biomolecule or receptor to its ligand. A ligand is usually a small molecule that binds to a specific receptor.

The receptor is usually a large molecule that contains a specific site for the binding of ligand.

Binding affinity is usually measured by the equilibrium dissociation constant (KD). The equilibrium dissociation constant KD is a ratio of the dissociation and the association of ligand to the receptor. The value of KD is used to evaluate and compare the strengths of bimolecular interactions.  The larger the KD value, the more weakly the target molecule and ligand are attracted to and bind to one another.

The higher the dissociation constant (KD), the weaker the affinity is between the interacting molecules, whereas, the smaller the KD value, the greater the binding affinity of the ligand for its target.

Protein B has a KD value of 10⁻⁹ M while Protein A has a KD of 10⁻⁶ M.

Ration of KD of protein B to protein A = 10⁻⁹ M/10⁻⁶ M = 10⁻³

Therefore, protein B has a KD value which is 1000 times smaller than the KD of protein A.

how do dirty wells and ponds harm us?

Answers

Organic chemicals can enter the grond water and contaminate private wells through waste disposal etc.

which symbol represents atoms that are isotopes of an element?

a. C-14 and N-14

b. O-16 and O-18

c. I-131 and I-131

d. Rn-222 and Ra-222​

Answers

Explanation:

O-16 and O-18 are isotopes as they have the same element (oxygen) but different atomic mass (16 and 18).

The symbol represents the atoms that are isotopes are O-16 and O-18, the correct option is b.

What are isotopes?

Isotopes are members of an element family that have the same number of protons but have different numbers of neutrons.

The atomic number of an element on the Periodic Table is determined by the number of protons in its nucleus. Carbon, for example, has six protons and is atomic number 6.

The mass of an isotope, which is the total number of protons and neutrons, is used to identify it. Isotopes are typically written in one of two ways.

The most common illustration are hydrogen as well as carbon isotopes. When it relates to the element Hydrogen, it has three stable isotopes: protium, deuterium, and tritium.

These isotopes share the same number of protons but differ in neutron count, with protium having zero, deuterium having one, and tritium having two.

Thus, the correct option is b.

For more details regarding isotopes, visit:

https://brainly.com/question/11680817

#SPJ2

Explain the all-or-none law of action potentials and describe the effect of increased stimulus strength on action potential production. How do the refractory periods affect the frequency of action potential production

Answers

If the stimulus reaches the threshold an action potential will be generated. If the stimulus doesn't reach it no action potential will be generated. If the stimulus will be stronger the action potential will have the same amplitude. The refractory period makes it harder to generate an action potential so they decrease the frequency of action potential production.

PLEASE HELP!
(click on the picture for it to be clear)
have a blessed day.

Answers

Answer:

plastic

Explanation:

how do the sea birds
contribute to the the pphosphoruos cycle​

Answers

Answer:

Phosphorous returns to the earth through fish harvest and the collection of fertilizer made by seabirds.

Explanation:

Seabird droppings, also known as guano, can be used as commercial fertilizer, in addition to being vital in terms of the number of nutrients in marine ecosystems.

Hollow bones

Survival Advantage

Answers

Answer:They can fit into small or tight spaces.

Explanation:

You cross an individual with genotype XXYYZZ to an individual with genotype xxyyzz, and F1 progeny are collected. Assume interference between regions (X-Y and Y-Z) is 100%. When an F1 individual produces gametes, what proportion of its gametes would have xyz genotype

Answers

In the first cross one of the parent has only dominant allele and one has only recessive allele that means the offspring in F1 will be 100% heterozygous

XxYyZz

the gametes resulted from this individual are

XYZ XYz XyZ Xyz xYZ xYz xyZ xyz

it produces 8 types of gamets one of which is xyz the proportion is 1/8

Question 9 of 25
Which is an example of current electricity?
A. Positively charged particles are attracted to negatively charged
particles.
OB. Negative and positive electric charges build up in different regions
of a cloud.
OC. Electrons flow from an outlet into a toaster, causing it to heat a
slice of bread.
OD. A person rubs a shoe on a rug, causing extra electrons to be
transferred to the shoe.

Answers

OC

because Electric current is the flow of electrons through a complete circuit of conductors. It is used to power everything

Answer:

OD is an example of current electricity

Please help!!!!!! Which is incorrect?

Answers

Answer:

Segment 3

Explanation:

A cannot connect to C

Under which of the following circumstances might the nutrient levels in manure be tested?
if it will be sold as fertilizer
if it is thought to contain pathogens
if a farmer or rancher wants to change the nutrients in his or her soil
if a CAFO’s Animal Waste Management Plan (AWMP) is being reevaluated

Answers

Answer: if a farmer or rancher wants to change the nutrients in his or her soil

Explanation:

The nutrients in the manure plays an important role in growth and development of the crops and they improve the fertility of the soil. Certain mineral elements present in the manure can change the pH of the soil which can affect the growth of the plants. Thus the mineral content of the manure should be tested thoroughly before changing the nutrients in the soil by providing the manure to the soil.

Answer:

If the farmer wants to change the nutrients in his or her soil.

Explanation:

Took the test.

What cellular function does the respiration rate represent

Answers

Answer:

Uh, Cellular Respiration

Explanation:

Um... if this isn't it, I have no idea.

I second the notion of the other answer, I’d go w/ cellular respiration
Other Questions
20 points!!!!!!Which of the following were used as arguments in favor of American imperialism? Check all that apply.It would aid in the spread of new technologies.It would weaken democracy in other countries.It would help the United States compete with Europe on a global stage.It would protect US trade interests.It would help the United States gain access to new markets. 5 more than the product of 23 and a number n Wriew a letter to your younger brother sister asking him not to eat junk food because it is harmful to health Please help me, I am bad at math so please helpA gum tree reached a height of 150 ft in 15 years. Cathy and Darla write different equations to find the yearly average growth g of the tree. Cathy writes 15g = 150. Darla writes 150/15 = g. Do these equations have the same solution? Explain. Ehrenreich states that one of the advantages of a corporate cleaning service compared to hiring an individual maidis thatA. hiring a corporate cleaning service is usually cheaper than hiring an individual maidB. corporate cleaning services do a better job of cleaningC. corporate cleaning services provide more flexible work hours to accommodate the customers'schedulesD. corporate cleaning customers don't communicate with maids directly but rather with themanagement of a corporate cleaning serviceE. corporate cleaning services treat their employees better, therefore, it is politically correct tosupport them financially Which of the following is one of the steps for recognizing revenue? Multiple Choice Identify the performance obligations of the contract. Determine whether bad debts can be reasonably estimated. Estimate the total transaction price of the contract based on fair value. Allocate all revenue to the performance obligation with the largest stand-alone selling price. Explain why some people say the equipment rules for the Paralympic Games are not fair. Do you think leaders should make changes? Why or why not? Use facts and details from the Article to back up your answer. I WILL GIVE BRAINLIEST pls help needed asap Why do most of the marine species live at or near the surface of the ocean Trent saved up $500 for summer vacation. If he spends $25 a week for eight weeks, how much money does he have left? Explain? (Can somebody help plz- ) what is the value of -2 1/6 - 1 1/4 + 1 3/4 The gravity on Earth is 9.8m/s2, the mass of a bowling ball is about 5kg. What is the weight of the bowling ball on the Earth? Complete the following sentence.____is the maltreatment of a person toward a negative goal. George is buying peaches and kiwis. He buys p peaches at $4.29 each and k kiwis at $2 each. What expression would you write to show the total cost of the peaches and kiwis? 8+6t-3t+tIll mark brainliest and 10 points I need ASAP For the diagram below let m1 = (7x + 5), m2 = (9x 8), and m3 = (11x 15). A triangle with exterior angles 1, 2, 3. Complete the work shown to find the m3. Set the sum of the exterior angles to 360 and solve for x. 7x + 5 + 9x 8 + 11x 15 = 360 27x 18 = 360 27x = 378 x = 14 Substitute the value of x into the expression that represents mAngle3. mAngle3 = 11(14) 15 mAngle3 = what is the cost of the item that would make these discount equivalent?Discount:30% off $22.50 off a company pays its employees and average hourly wage of 36.25 with a standard deviation of 6.50 more than 23.22 of 36 employees are randomly selected, what is the probability that their mean wage is more than 23.22 Directions: Choose any STI. Create a poem about the STI and how to prevent it from happening.Your poem must include:1. The name of the STI2. Symptoms of the STI3. Effects of the STI4. How to prevent the STI5. Needs to be at least 1/2 a page Please help! I'll give Brainliest!!! Solve this inequality (show your work) 3x -7 > 5