In the lab, you isolate a mutant strain of bacteria in which the phosphatase that would normally dephosphorylate NtrC-P is defective. Assuming the levels of NtrB and NtrC protein remain normal (same as wild type), what is the expected phenotype of this mutant

Answers

Answer 1

Answer:

GlnA will be overexpressed and the cells will have more glutamine than glutamate

Explanation:

Glutamine synthetase (glnA) is an enzyme involved in nitrogen metabolism that catalyzes the amidation of glutamate to glutamine. Moreover, the phosphorylated form of the NtrC response regulator protein (NtrC~P) acts as a transcriptional activator of genes associated with nitrogen metabolism, including glnA. NtrC~P exhibits 1-an enhanced DNA binding activity (increased oligomerization on the target DNA template) and 2-ATPase activity (oligomerization of the NtrC phosphoprotein), which are fundamental features for transcriptional activation. In consequence, it is expected that a higher level of NtrC~P (due to a defective form of the phosphatase that dephosphorylates NtrC~P) leads to the overexpression of glnA, thereby increasing glutamine levels and simultaneously decreasing glutamate concentration.


Related Questions

Ecologists are interested in quantifying different kinds of biodiversity. In below study outlined here, which kind of biodiversity are ecologists studying?

Ecologists establish 20 small areas, called plots, randomly scattered across a California grassland. They count the number of different plant species present in each plot. By noting how many species appear in the plots, the ecologists are able to estimate the number of species in the entire grassland.

a. Genetic diversity
b. Functional diversity
c. Ecosystem diversity
d. Species diversity

Answers

Answer:

d. Species diversity

Explanation:

The species diversity can be measured by:

Species richness: Refers to the number of species are inhabiting a defined area. Species abundance: Describe the distribution of the species abundance.

Species richness is the number of species present in a sample, within a community, habitat or microhabitat, ecosystem, landscape, region or any well-defined spatial unit. It is a metric for measuring biodiversity which simplicity and easy interpretation make it a standard metric.  It is the simplest and straightforward measure of biodiversity. It is just a count of species, with no need for abundance data. In some cases, this can be the cause of criticism, as it ignores information about the species-abundance distribution.    

wood burning
cooking an egg
making Kool Aid
water boiling
copper plating a nail
melting sand to make glass

are these chemical or physical changes​

Answers

These are physical change examples

What impact Can land use and land zoning have on soil fertility, and subsequently on food production?

Answers

Answer:

The main consequences of inappropriate land use changes are land degradation and soil quality deterioration through loss of vegetative cover, top soil moisture, infiltration capacity, water storage, soil organic matter, fertility, resilience, natural regeneration capacity, and a lower water table, factors that are ...

hope it Helps U

please mark me as brainlist

In an energy pyramid, the lowest level has: a) less energy than the top level. b) less energy than the second level. c) more energy than the top level. d) the same amount of energy as the second level.​

Answers

Answer:

I believe the answer would be B because if I'm sure the bottom is grain which has higher levels in grain and glucose I believe and that doesn't produce energy . The second level is meat and that has protein which give us strength.

1. identify the organelle that regulates cell function and contains the dna

A. Nucleus

B. mitochondria

C. golgi apparatus

D. cell membrane

Answers

Answer:

the organelle that regulates cell function and contains the DNA is a nucleus

What is thought to have caused the ice ages?

A) Earth's precession
B) Earth's tilt
C) Earth's rotation
D) Earth's magnetic field

Answers

C-earths rotation I believe that’s the answer

Answer:

A) Earth's precession

Explanation:

Earth's precession is the movement of Earth that acts like a cone.

Earth has three movements: rotation, revolution and precession.

(equinoctial precession)

PLEASE HELP- Which step in developing a
balanced ration involves
determining what feedstuffs are
available in your location?

Answers

Answer:

1

Explanation:

step 1 because it shows locations

Match the answer with the statement about promoters and enhancers. Group of answer choices Responsible for regulating translation. [ Choose ] Transcription machinery does not assemble at _______________.

Answers

Answer:

Neither

Chromatin

Explanation:

Both promoters and enhancers are generally regulating transcription. They are not regulating in translation. They are not responsible for regulation in translation.  

Transcription machinery assemble at naked eukaryotic DNA. They do not assemble at DNA chromatin.

PLS HELP 40 POINTS

Which of the following statements correctly compares sex-linked disorders between males and females?

Sex-linked disorders affect females more often than males because females have no X chromosomes.
Sex-linked disorders affect males more often than females because males have only one X chromosome.
Sex-linked disorders affect females more often than males because females have only one Y chromosome.
Sex-linked disorders affect males more often than females because males have only one Y chromosome.

Answers

Answer:

i have no idea what this means i kinda need more details but ill say it maybe is Sex-linked disorders affect males more often than females because males have only one X chromosome. but im not really sure

Explanation:

cardiovascular anatomy describe the operation of the heart and vessels. true\false​

Answers

Explanation:

true

I hope this helps u

//^

Answer:

susieiwiiuw7wuwiwiwiwususususu


It’s tricky to develop a vaccine for the common cold
because:

Answers

The development of vaccines for the common cold has been difficult because of antigenic variability of the common cold virus and the indistinguishable multiple other viruses and even bacteria acting as infective agents.

Hunter is on a waiting list for a kidney transplant after his kidneys shut down and he went into renal failure. What can help keep Hunter alive by filtering his blood until he receives his transplant? chemotherapy antibiotics dialysis ultrasounds

Answers

Answer: C: dialysis

Explanation:

c. dialysis

Answer:

c

Explanation:

In fruit flies, the phenotype for eye color is determined by a certain locus. E indicates the dominant allele and e indicates the recessive allele. The cross between a male wild-type fruit fly and a female white-eyed fruit fly produced the following offspring.

Wild Type Male Wild Type Female White-eyed Male White-eyed Female Brown-eyed Female
F1 Generation 0 45 55 0 1

The wild-type and white-eyed individuals from the F1 generation were then crossed to produce the following offspring.

Wild Type Male Wild Type Female White-eyed Male White-eyed Female Brown-eyed Female
F2 Generation 23 31 22 24 0

Required:
a. Determine the genotypes of the original parents (P generation) and explain your reasoning.
b. Use a Chi-squared test on the F2 generation data to analyze your prediction of the parental genotypes.

Answers

Answer:

The genotypes of the original parents are

Male: X⁺Y   Female: X⁻X⁻

The Chi-square analysis leads us to accept the prediction of the parental genotypes.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

(a) The genotypes for the original parents (P generation) are

Male: X⁺Y  

Female: X⁻X⁻

(b) The prediction of the parental genotype is accepted by the Chi-squared test analysis.  

What is the eye color pattern in fruit flies?

Drosophila Melanogaster is a fruit fly with abnormally big, brightly colored eyes.

The range in color from red to sepia to white reveals a lot about the genetic makeup of the fly.

(a)  E = + ⇒ Dominant allele coding for wild-type eyes

     e = - ⇒ Recessive allele coding for white eyes

Now, Crossing the : male wild-type with a female white-eyed

(Parental)   =  X⁺Y x X⁻X⁻

(Phenotype) =   wild   white

(Gametes)  =    X⁺ Y X⁻ X⁻

(Punnett square)  =  X⁺ Y

X⁻   =  X⁺X⁻  X⁻Y

X⁻   =  X⁺X⁻   X⁻Y

In (F1)generation = 2/4 = 1/2 = 50% of the progeny are expected to be wild-type females.

And 2/4 = 1/2 = 50% of the progeny are expected to be white-eyed males.

Thus, the percentages are almost 50:50, as the expected ones.

So, the genotypes of the original parents are

Male:      X⁺Y

Female:  X⁻X⁻

(b) Using Chi-squared test :

Observed fruit fly type:

Wild Type Male - 25

Wild Type Female - 31

White-eyed Male - 22

White-eyed Female - 24

Expected fruit fly type:

Wild Type Male - 25

Wild Type Female - 25

White-eyed Male - 25

White-eyed Female - 25

Now, chi square [tex]= \sum\dfrac{(O- E)^2 }{E}[/tex]

By putting numbers in the formula, we are getting

Wild Type Male - 0.16

Wild Type Female - 1.44

White-eyed Male - 0.36

White-eyed Female - 0.04

Now, X² = 0.16 + 1.44 + 0.36 + 0.04 = 2

Critical value = 7.82

X² (2) < critical value (7.82)

Thus, this is the evidence to accept the given hypothesis.

Learn more about fruit flies here:

https://brainly.com/question/7274152

Identify the complementary strand of DNA with the sequence: ACC GTA TCG

1.) GTT ACG CTA
2.) ACC GTA TCG
3.) CAA TGC GAT
4.) TGG CAT AGC

Answers

Answer:

4

Explanation:

because it's there opposite letter

Answer:

4 b.c a is equal with t and g is equal to c

Which statement correctly identifies the types of macromolecules that are described?

Answers

Answer:

macromolecules are the molecules that we can not see by the eye

Explanation:

What should I do more, that's all I know about macromolecules

New Zealand is one of the most geologically active places on Earth. Earthquakes, volcanoes and geysers commonly occur throughout the region. What most likely causes these to happen throughout New Zealand? (SC.7.E.6.7)

Answers

The third answer because I was taught this information

Which organism is most abundant in the Terrestrial food chain

Answers

The primary producers

which of the following elements is most likely to be the least reactive?
A. a group of 2 element
B. a group of 17 element
C an element with 1 valence electron
D an element with 8 valence electrons

Please help1!1

Answers

Answer:

D

Explanation:

8 valence electrons means it is stable, so it will not need to lose or gain electrons

Most food chains end with a top predator. Which of these is the BEST definition of a top predator?

Answers

Answer:

Top predator is a predator at the top of a food chain without natural predators.

Answer:

Hello There!!

Explanation:

A top predator is a predator which is at the top of the food chain and eats other consumers.

hope this helps,have a great day!!

~Pinky~

PLS HELP ME

Which type of reproduction provides organisms with the following disadvantages? Organisms must grow until mature enough to produce sex cells. Finding a mate uses energy and takes time.

A. Asexual Reproduction

B.Sexual Reproduction​

Answers

Answer:

Sexual Reproduction is the answer

5 The systolic blood pressure reading of 140-159 the systolic blood pressure reading of 140 - 159 is what stage of Hypertension?
A Stage 2
B Stage 1
C Stage 3
D High Normal

Answers

Answer:

B. Stage 1

Explanation:

Systolic blood pressure is less than 120 mm Hg and Diastolic less than 80 mm Hg so it is considered as normal. Pre-Hypertension occurs when the Systolic blood pressure is 120 - 139 and Diastolic pressure is 80 - 89. Stage 1 Hypertension is considered when the Systolic blood pressure is 140 - 159 and Diastolic blood pressure is 90- 99. If the Systolic blood pressure is greater than 160 it is considered as Stage 2 Hypertension.

What does the flagella do in a euglenoid?

Answers

Answer:

Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor. The flagellum is located on the anterior (front) end, and twirls in such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir.

All of these children (including the fraternal twin sisters in the front row)
are the biological children of the two parents in the middle of the picture.
Based on everything that you have learned in this unit, explain why these
brothers and sisters do not look exactly alike. Include the processes of cell
division and the rules of genetics in your answer.

Answers

Answer:

Explanation:

Because in the fetus stages of fraternal twins two different eggs get fertilized. Therefore, genetics won't be the same for both twins. But if they were identical twins the fertilized egg was to divide and the two zygotes would've carried the same genetics of each other.

ANSWER FOR BRAINLIEST

Look at the image below.

Answers

Y is the best graph represented
the answer will be C. (Y)

Please answer only if you know this is a final 

Answers

Answer:

ecosystem

Explanation:

13. Which kingdom is known as a decomposer? A. Fungi B. Plantae C. Protista D. Animalia Dentisthenia​

Answers

Answer:

fungi

Explanation:

.......................

Answer:

I think it's D

Explanation:

Have a Nice Day

Which factors can lead to a mass movement?

Answers

Answer:

Such factors include: weathering or erosional debris cover on slopes, which is usually liable to mass movement; the character and structure of rocks, such as resistant permeable beds prone to sliding because of underlying impermeable rocks; the removal of the vegetation cover, which increases the slope's susceptibility ..

Explanation:

Answer:

Explanation:

Weathering or erosional debris cover on slopes, which is usually liable to mass movement; the character and structure of rocks, such as resistant permeable beds prone to sliding because of underlying impermeable rocks; the removal of the vegetation cover, which increases the slope's susceptibility

convention cells hbnmb,

Answers

Answer:

convention cells

Explanation:

In the field of fluid dynamics, a convection cell is the phenomenon that occurs when density differences exist within a body of liquid or gas. These density differences result in rising and/or falling currents, which are the key characteristics of a convection cell. When a volume of fluid is heated, it expands and becomes less dense and thus more buoyant than the surrounding fluid. The colder, denser part of the fluid descends to settle below the warmer, less-dense fluid, and this causes the warmer fluid to rise. Such movement is called convection, and the moving body of liquid is referred to as a convection cell. This particular type of convection, where a horizontal layer of fluid is heated from below, is known as Rayleigh–Bénard convection. Convection usually requires a gravitational field, but in microgravity experiments, thermal convection has been observed without gravitational effects.

An electric current is generated when a coil of wire passes through a magnetic
field. A device for detecting this current is a
1 generator
2 turbine
3 calorimeter
4 galvanometer​

Answers

Answer: Galvanometer

Please explain how shade-adapted plants tend to differ from sun-adapted plants, using the terms: specific leaf area, dark respiration, root mass fraction, leaf lifespan.

Answers

Answer:

Thickness and number of chlorophyll.

Explanation:

Shade-adapted plants differ from sun-adapted plants due to many characteristics such as thickness and number of chlorophyll. Sun leaves are more in thickness than shade leaves because they develop longer palisade cells. Shade leaves generally have more chlorophyll as compared to sun-adapted plants. Specific leaf area and root mass fraction of Shade-adapted plants are higher as compared sun-adapted plants due to large number of chlorophyll to harvest more sunlight for photosynthesis. Dark respiration is higher in sun-adapted plants when there is darkness as compared to shade-adapted plants which produce food in no direct sunlight.

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