When both lactose and glucose are available to E. coli, which part of the lac operon regulation assures that glucose will be metabolized first? When both lactose and glucose are available to E. coli, which part of the lac operon regulation assures that glucose will be metabolized first? Permease allows lactose to enter the cell when lactose enters the cell. The repressor binds to the operator in the absence of lactose. The repressor cannot bind to the operator in the presence of lactose. RNA polymerase transcribes the lac operon to make a single RNA molecule. CAP binds to cAMP and then to the promoter only in the presence of low glucose.

Answers

Answer 1

Answer:

CAP binds to cAMP and then to the promoter only in the absence of low glucose

Explanation:

When both lactose and glucose are available to E. coli, the part of the lac operon regulation that assures that glucose will be metabolized first is

CAP binds to cAMP and then to the promoter only in the absence of low glucose

Lactose is a type of sugar that is found naturally in milk produced by mammals and Glucose is a monosaccharide made mostly by plants during photosynthesis


Related Questions

4. How does a sound wave vibrate?

Answers

When sound waves move through the air, each air molecule vibrates back and forth, hitting the air molecule next to it, which then also vibrates back and forth. The individual air molecules do not "travel" with the wave. They just vibrate back and forth.

A taxonomic key is a tool used to identify an unfamiliar organism.

a. True
b. False

Answers

It is probably true

I need a definition of representation and diversity

Answers

Answer:

resperation is the the action of breathing.

diversity is a range of different things.

Explanation:

Builder a was able to underbid his competitor, builder b, by secretly using a lower grade cement when building swimming pools.both builders used the same design and specifications for the pool. Two years later, the pools made buy builder a began to leak and soon became unusable who is liable for the expense of fixing the pools?

Answers

Answer:

builder A

Explanation:

got it right

Answer:

Builder A

Explanation:

On quizlet

HURRY
Which combination of sex chromosomes results in a male human being? *
1 point
XX
YY
XY
either XX or YY

Answers

Answer: it's XY

Explanation:

In the Arctic, seals are one of the main sources of food for polar bears. As global warming melts polar ice, fewer seals can be found in the Arctic. As a result, polar bears will —

A. maintain a constant population.


B. decrease in number.


C. migrate to tropical regions.


D. increase in number.

Answers

Decrease in numbers, because of their lack of a food source.

Answer:

Decrease in number.

Explanation:

They have less food and they will not be able to survive without food.

What is the difference between diurnal and nocturnal?

Choose all that apply

Question 8 options:

diurnal means awake during the day, and use the light to their advantage


nocturnal active at night.


nocturnal mean awake during the day, and use the light to their advantage.


diurnal means active at night

Answers

Answer:

diurnal means awake during the day, and use the light to their advantage

nocturnal active at night.

Explanation: Diurnal means active during the day, such as a mosquito meanwhile, a nocturnal animal or being is only active during the night, and sleeps the day away, such as a bat

Hope this helps ^^

Diurnal means awake during the day time, and use the light to their advantage. Nocturnal means active at night time. Thus, the correct options will be A and B.

What is Diurnal and Nocturnal?

Based on the activeness of an organism during a day or 24 hours time period, the animals or organisms can be classified into two different types which are nocturnal and diurnal organisms. Nocturnal animals are the animals which are most active during the night time, and diurnal animals are the animals which are active during the daytime.

Diurnal animals are those animals which are awake during the day time, and use the light energy to their advantage. Nocturnal animals are the animals which are active at the night time.

Therefore, the correct options will be A and B.

Learn more about Diurnal here:

https://brainly.com/question/29576972

#SPJ3


Question 21
Neurons of the cerebral cortex never dip into the medulla.
O True
O False

Answers

Answer:

False

Explanation:

The cerebral cortex refers to the outer layer of the brain. This layer is formed by a thin film of nervous tissue that surrounds the surface of the cerebral hemispheres, with primates having a much more developed cerebral cortex than other animals.  

the cerebral cortex is a thin layer of neurons and neuronal connections which is embedded in the neocortex(the neuronal cells of the cerebral cortex which form in the deep layer), it is not homogeneous, since it is made up of six layers of cells, each with specific and specific functions.

What is included in Earth’s hydrosphere?

Answers

Answer: The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet's hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers. It also exists below ground—as groundwater, in wells and aquifers. brainliest?

Explanation:

Answer:

Explanation:

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

The function of the liver in humans is to maintain the [glucose] circulating in the blood stream at reasonably constant levels. This is so organs like the brain that use primarily glucose as their carbon source to produce energy via ATP have a steady supply of glucose. It also ensures that the levels of glucose in the blood stream do not get too high. Using the plots from problem 6, discuss why it makes sense that glucokinase in liver would behave differently than the hexokinase in other cells.

Answers

Answer:

Due to difference in function.

Explanation:

Glucokinase in liver behave differently than the hexokinase in other cells because glucokinase performs different function in the body. Glucokinase is an enzyme that is responsible for sensing the glucose level in the blood and also plays a key role in the storing of glucose as glycogen while on the other hand, this storing ability is absent in hexokinase so that's why the glucokinase in liver behave differently than the hexokinase in other cells.

Which of the following biotic factors is associated with increasing the capacity of the organisms to move across fragmented landscapes? Patch size, connectivity,Patch shape, Distance from other landscape patches

Answers

Answer:

connectivity

Explanation:

Natural and anthropogenic alterations affect the landscape. The unmeasurable use of the land for farming, cattle industry, buildings, among many other activities, has caused a severe fragmentation in the original landscape that has been seriously affecting biodiversity.    

Fragmentation occurs when a big extension is transformed into many different and smaller patches, separated by another type of cover. You can imagine, for instance, an area used for mono-culturing, which you can see as a homogeneous space of the same texture and color, and small green islands of original vegetation dispersed in this cropped area. These small islands are separated from each other by the crop.

These alterations produce patches or tesserae in the landscape. Patches are relatively homogenous areas with well-defined borders and environmental characteristics very different from those of the surrounding areas. These are like islands. You can think about patches or tesserae as the remaining pieces or units of the original landscape dispersed inside an affected bigger-sized area.

Fragmentation generates a significant loss of physical continuity between the different areas of the original habitat. It might negatively affect biodiversity by decreasing patch sizes, completely isolating them from each other, and increasing the border effect.

Many species can not survive if they are not in the original habitat. Probably they do not find enough food or shelter, or they are very exposed to predation. So they need to stay in the patch. Most of these species are not even adapted to living on the border of the patches. Eventually, fragmented areas can not support some population species that end by dying because they can not survive for a long time in that reduced place. Patches are not suitable to support too many species.

For these reasons, the connection between islands becomes so important.  To allow species to move from one place to the other, interact with other species, reproduce, find food, shelter, avoid predation. In other words, survive.  Connectivity is how the territory makes possible individuals flow or genetic flow, between the different tesserae.

#SaveTheTrees
We can do this

Answers

Answer:

#SaveTheTrees

Answer:

Donate or plant a tree!

Explanation:

https://teamtrees.org/

https://www.greenamerica.org/save-trees

2) Which of the following designates a female elephant? A: Bull B: Sow C: Cow D: Mare​

Answers

The answer is C (aka cow)

Different alleles produce different characteristics. True False

Answers

Answer:

Explanation:

Los alelos son formas alternas de un gen, que difieren en secuencia o función. Toda característica genéticamente determinada depende de la acción de cuando menos un par de genes homólogos, que se denominan alelos.

Which of the following statements is NOT true about DNA? *
1 point
There are about 20,000- 25,000 genes in DNA.
Genes are made up of smaller segments of DNA.
Genetic material is passed on from parent to offspring by DNA.
DNA is a set of instructions which determines the traits of an organism.

Answers

Answer:

DNA is a set of instructions which determines the traits of an organism

Explanation:

Which gland is enlarged in a young child and what is the main function of the hormone it secretes?
O A) Pineal – seasonality and salt resorption
B) Thyroid - metabolism
C) Thymus - immune system development
D) Pancreas - calcium storage
E) Adrenal – secondary sexual characteristics

Answers

Answer:

C

Explanation:

The thymus produces and secretes thymosin, a hormone necessary for T cell development and production. The thymus is special in that, unlike most organs, it is at its largest in children.

Answer:

The right answer is option C, thymus.

Thymus helps in immune system development. Its located behind sternum and helps in maturation of T lymphocytes.

Mutations are a source of variation in:
A)asexually reproducing organisms
B)neither option
C)both options
D)sexually reproducing organisms

Answers

C( both options. Hope it helps!!!!

Why can hurricanes be difficult to predict

Answers

It’s is difficult bc the lack of data, difficult to predict the status of a storm.

What type of plate boundary iS shown in the diagram?
O A. Subduction boundary
O B. Convergent boundary
• C. Divergent boundary
O D. Transform boundary

Answers

Answer:

I believe it is C. Divergent boundary

Answer:

C

Explanation:

Match each explanation to the correct step of the Scientific
Method.​

Answers

Explanation:

Hi!! sorry to take up this space and probably waste your time but you didn't insert a picture or equation!! I'm so sorry, I'd help you otherwise!

what bug is this I need to to know.​

Answers

Answer:

i think beetle bug

Explanation:

the color size dont harm bad


Which gas is least abundant in Earth's atmosphere? EXTRA POINTS
A .A
B .B
C .C
D .D

Answers

And see is going to be c carbon dioxide

Calculate the diploid & haploid numbers for each of the following organisms
Organism
Diploid number
Haploid number
Camel
70
Human
46
Squirrel
20
Apple
34
3
Mosquito
Frog
13
Lettuce
18
Explain how a human baby gets 46 chromosomes:

Answers

Answer:

Meiosis is the start of the process of how a baby grows. Normally, meiosis causes each parent to give 23 chromosomes to a pregnancy.  When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes.

That’s the right question

Answers

Answer:

oh cool

Explanation:

During the formation of metamorphic rocks, what most likely causes pressure to increase?

Answers

Answer:

Magma pockets rise.

Explanation:

Answer:

It should be D, rocks beneath Earth's surface are forced toward the mantle.

Explanation:

edge2021

Which units are used in a pyramid of biomass?
A Individuals
B. g C/m2
C. m/s2
D. Klocalories

Answers

Answer:

g/m2 is the unit used in a pyramid of biomass. Kilocalories is Unit of measure for energy pyramids

Which statement best describes a difference between a molecule of DNA and a molecule of RNA?
A)DNA contains genetic informationwhile RNA does not
B)RNA contains the letter in place of the letter T in DNA
C)DNA has 1 strand, while RNA has 2
D)RNA uses the letter C. while DNA does not

Answers

Answer: B

Explanation:

As a discussed in the lesson, eukaryotic cels are differ from prokaryotic cells based on what three things?

Answers

Answer:

Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions

These weeds are growing in a farmer's field. The weeds compete with the soybean plants the farmer grows, so he needs to get rid of them. For a few years, the former relies on manually removing the woods, but that is labor intensive and limits how much crop he can grow. The farmer decided to change his crop to genetically modified soybeans that are herbicide resistant. This allows the farmer to use chemicals to remove the weeds. With this GM soybean, the chemical kills the woods but does not harm the crop. For many years this works, and allows the farmer to expand his farm and grow more soybeans. But then, one of the farmer's fields has a large weed plant remaining after the field has been sprayed with herbicide
1. Which of the following is the likely reason the weed has remained?
a. The weed needed to be resistant in order to survive, so it became resistant
b. A mutation appeared in one weed plant that made that weed not susceptible to the herbicide
2. Which of the following is likely to happen if that weed stays in place?
a. The trait will spread to nearby weeds
b. The weed will survive long enough to reproduce
c. In time, the herbicide will no longer be effective on that field.

Answers

Answer:

1) A mutation appeared in one weed plant that made that weed not   susceptible to the herbicide ( B )

2) The weed will survive long enough to reproduce ( B )

Explanation:

1) The most likely reason the weed remained is :  A mutation appeared in one weed plant that made that weed not susceptible to the herbicide

The weed plant must have undergone some mutation in order to be resistant to the herbicide which would kill the weed before now

2) The most likely thing that will happen if the weed stays in place in that farm is : The weed will survive long enough to reproduce

The trait or mutation of the weed cannot just spread to other weeds nearby it can only spread by reproducing more weeds of same mutation

What does the slope of a distance-time graph represent?
The

Answers

Answer:

it represents the speed of moving

Explanation:

A sloping line on a distance-time graph shows that the object is moving. In a distance-time graph, the slope or gradient of the line is equal to the speed of the object

depends, if distance is x and time is y, the slope will be representing the how long it takes to get to a distance. and ofc, the other way around, u get the point
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