James is working with the lac operon of Escherichia coli (E. coli). He places the bacteria on a plate of growth media.

The lac Operon of E. coli is shown.

Based on the current understanding of this operon, which hypothesis would be useful for James to test?
Addition of allolactose to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose.
Removal of the RNA polymerase molecule should increase the amount of bacterial growth on the plate.
Decreasing the amount of allolactose in the bacterial growth media should increase the rate of bacterial growth.
Increasing the rate at which RNA polymerase acts will inhibit bacterial growth.

Answers

Answer 1

Answer:

Addition of allolactose to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose.

Explanation:

right on edg 2020

Answer 2

Answer:

A

Explanation:


Related Questions

Antidiuretic hormone (ADH) increases the permeability of the collecting ducts to water, facilitates water reabsorption. As a result, urine volume _____ and blood volume _____.

Answers

urine volume decreases since water is returned to the body and the blood volume increases since the reabsorbed primary urine goes into the blood

Nematodes belong to a category of animals called "Ecdysozoa;" which of the following best describes why?

a)Nematodes are worms.

b)Nematodes molt their exoskeleton.

c)Nematodes can be parasites.

d)Nematodes lack a head.

Answers

Answer:

a

Explanation:

it is a because nematodes belong to a category of animals

1) List what elements are found in a nucleotide.

2) What is the polymer of a nucleotide?

3) Why are nucleic acids important for all life?

COMPLETE SENTENCES PLZ ILL GIVE BRAINLIEST

Answers

Answer:

1) A nucleotide consists of a single sugar, a phosphate, and a nitrogen-containing base.

2) The monomer units of DNA are nucleotides, and the polymer is known as a "polynucleotide. Nucleotides don't have polymers because they are monomers.

3) They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell. The two main types of nucleic acids are DNA and RNA.

Explanation:

hope this helps!

B and b represent, respectively, the dominant and recessive alleles of a gene pair. Half of the F1 generation expresses the recessive condition, and the other half expresses the dominant condition. What are the most likely genotypes of the P generation

Answers

Answer:

Bb and bb

Explanation:

The most likely genotypes of the parental generation would be Bb and bb.

If Bb and bb are crossed, such that:

                       Bb    x    bb

offspring:     Bb   Bb   bb   bb

Bb = 2/4 = 1/2 = 50%

bb = 2/4 = 1/2 = 50%

hence;

1/2 or 50%% of the offspring would express the dominant condition in the form of Bb and the remaining 1/2 or 50% of the offspring will express the recessive condition in the form of bb.

Answer:

the dude above me correct

PLZ HELP ME I NEED THIS ASAP IT WAS DUE 3 DAYS AGO 15 POINTS AND BRSINLIES TO FIRS ANSWER Sponges
Cnidarians
Roundworms
Annelids
Mollusks
Arthropods
Echinoderms
Vertebrates


Questions

1. Which grouping in the animal kingdom is the only one that contains organisms with vertebrae?







2. Which grouping has the least complex body plan? If you were on a research expedition in the kingdom of Tonga, a coral atoll in the South Pacific, would you find these organisms?

Answers

Answer:

Question 1: Vertebrates

Question 2: Porifera, and yes you would find it.

Explanation:

Vertebrates are the only one with a backbone. And porifera is a sponge, which has a very basic body plan. It would be found there.

What is the difference between haploid and diploid cells? Which process creates diploid cells? Which process creates haploid cells

please do this pretty simple because I'm a dummy lol

Answers

Question 1: the difference is that Haploid cells are those that have only a single set of chromosomes while diploid cells have two sets of chromosomes.

Question 2: Mitosis creates diploid cells

Question 3: Meiosis creates haploid cells

why should we always cough and sneeze into a handkerchief​

Answers

To not spread any Bacteria

Answer:

Too reduce the spread of the germs, it may not help all the way but just by some

Explanation:

i'll give brainliest

Answers

Answer: B. S cycle

Explanation: The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA.

The answer is S. It’s replicated in the S face

True or False:
Changes in the crust happen quickly and can easily be seen

Answers

Answer:

False, they take a long time

Explanation:

In eukaryotic cells, ribosomes are located in the

a
nucleus
b
cytoplasm

Answers

Answer:

Cytoplasm

Explanation:

Nucleus was my original answer but I'm actually wrong. It is not the nucleus.

Answer:

B) cytoplasm

Explanation:

I am not 100% sure but i think it´s B

A flashlight uses four batteries to power it. Which type of current flows inside the flashlight? A. direct B. alternating C. repeating D. pulsating

Answers

Answer:

A, direct

Explanation:

Hope this helps :)

A would be the right answer

A worker uses an inclined plane to do the work of moving a wheelbarrow load up to a higher level rather than lifting the
wheelbarow load straight up. Which of the following choices best describes his decision to use an inclined plane? (DOK 3,
AKS 8d)
A. He uses the same effort force, but moves the wheelbarrow the same distance.
O
B. He uses less effort force, but has to move the wheelbarrow a greater distance.
O
C. He uses less effort force, and is able to move the wheelbarrow the same distance.
OD. He uses more force, but moves the wheelbarrow overa shorter distance.

Answers

Answer:B

Explanation:Because its right

From the provided choices, which color of light does the pigment chlorophyll absorb the most?

A) green
B) Orange
C) blue
D) yellow

Answers

Answer: C) Blue

Chlorophyll a: This is the most abundant pigment in plants. Chlorophyll a absorbs light with wavelengths of 430nm(blue) and 662nm(red). It reflects green light strongly so it appears green to us.

so therefore, it’s blue

A new microbe has been discovered in the rumen of sheep. Microscopy shows no evidence of a nuclear membrane and biochemical studies of the cell wall demonstrate the lack of peptidoglycan. Metabolic studies show that this microbe generates methane. This microbe would most likely be classified in ______.

Answers

Since it has no nucleus it's most likely a prokaryote

A new microbe discovered in the rumen of sheep that generates methane, shows no evidence of a nuclear membrane, and biochemical studies demonstrate the lack of peptidoglycan. Such type of microbes is likely to be classified in Archaea.

Archaea is a group of single-celled microorganisms that were first discovered in 1977. Archaea are similar to bacteria and eukaryotes, but they are unique in that they thrive in harsh environmental conditions like extreme heat, high salt levels, and acid environments.

Some archaea can also generate methane gas, similar to the microbe in the given description. Hence, the given microbe that generates methane, shows no evidence of a nuclear membrane, and biochemical studies demonstrate the lack of peptidoglycan would most likely be classified in Archaea.

Learn more about Archaea:

https://brainly.com/question/1475001

#SPJ2

How might we investigate how some people survive a pandemic and others do not?

Answers

By checking whether they are infected or not by health check-up. Like their temperature, or probably blood test.

Or, if you are talking about precentage, usually its from the hospital that are reporting the number of people who are infected.

The fungus penicillium reproduces asexually and forms genetically identical spores. Which of the following process does penicillium use to form its spores ?

Answers

Answer:Mitosis

Explanation:

Explain how photosynthesis and cellular respiration are cyclic processes

Answers

Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.

Our bodies work to fight off infections through nonspecific and specific defense systems. Which of the following is part of the nonspecific response?

Toxic T-Cellss

Memory B-Cells

Skin

Antibody production

Answers

I could be wrong but I think it might be antibody production

Which correctly lists three factors that contribute to weathering of rock?
O ice, water wind
O layers, minerals, water
Ominerals, water, ice
O water, minerals, wind

Answers

Ice water and wind (A)

Which of the following distinguishes a function of vascular tissue?

transporting water through the plant

shaping the plant's sperm

surrounding reproductive parts of the plant

forming the plant's egg

Answers

Answer:

The correct answer is - transporting water through the plant.

Explanation:

Vascular tissues are the conductive tissue present in most of the plants that made up of various cell types mainly phloem and xylem. Vascular tissue is complex and present in different types in different plants.

These two primary parts of the vascular tissues xylem and phloem help in transporting the fluids and nutrients to different parts internally in the plants. The fluids that are transported include water, plant hormones nutrients, and various essential molecules to help plant.

Answer:

transporting water through the plant

Explanation:

I got 100% on edge 2022

Causes a mutation that is the basis for AZT, the antiviral drug used to treat HIV infections Group of answer choices UV light nitrous acid ionizing radiation benzpyrene base analog

Answers

Answer:

Ionizing radiation.

Explanation:

Mutation is the sudden change that is occur by exposing cells to the ionized radiation which change the genetic makeup of the cell. Due to mutation, the cell does not perform its normal function like before the mutation so when the mutation occurs in the cell, the genetic or DNA makeup is changed which make the environment unfavorable for the HIV virus and the virus can not cause any infection in the cell.

When is cladistics more useful than Linnaean taxonomy?
A.When you want to find organisms that look similar
B.When you want to find the phylum an organism is in
C.When you want to determine the order of evolution
D.When you want to group organisms by traits

Answers

C.When you want to determine the order of evolution

i think this is the correct answers since A B and D also apply for Linnaean taxonomy

Why is the water cycle so important to this Earth?

Answers

Answer:

The water cycle is an extremely important process because it enables the availability of water for all living organisms and regulates weather patterns on our planet. If water didn't naturally recycle itself, we would run out of clean water, which is essential to life.

Explanation:

Brainliest please?

Part One: Matching
Instructions. Match the term with the correct response. Write the letter of the term by the definition.
a. Anther
b. Complete flower
c. Filament
d. Incomplete flower
e. Imperfect flower
f. Perfect flower
Petal
h. Sepal
Style
_1. Colorful leaf-like structure which attracts pollinators.
2. Structure which holds up the anthe.
3. Structure which holds up the stigma.
4. Green leaf-like structures that protect the flower bud.
5. Flower which is missing sepals.
6. Flower which has both stamens and pistils.
7. Flower which has stamens, pistils, sepals, and stamens.
8. Flower which is staminate or pistillate.
9. Structure which holds the pollen.

Answers

Answer:

G   1. Colorful leaf-like structure which attracts pollinators.

C   2. Structure which holds up the anther.

 I    3. Structure which holds up the stigma.

H    4. Green leaf-like structures that protect the flower bud.

D     5. Flower which is missing sepals.

F     6. Flower which has both stamens and pistils.

B    7. Flower which has stamens, pistils, sepals, and stamens.

E   8. Flower which is staminate or pistillate.

A  9. Structure which holds the pollen

Explanation:

The above are parts of a flower. The style actually holds up the stigma. It is the passage that leads down to the ovary which actually contains the ovules. Sepals are known to be green, leaf like structures which located at the base of a flower. It function is to protect the flower bud. An incomplete flower is known to be a flower that has "petals, sepals, stamens or pistils" missing. Perfect flowers are flowers that have the pistils and the stamen just in one flower.

Are brown eggs more nutritious than white eggs?

Answers

Answer:

Often, people who prefer brown eggs do so because they believe brown eggs are more natural and healthy than white eggs. However, the truth is that all eggs are nutritionally very similar, regardless of size, grade or color (2, 6, 7). Both brown and white eggs are healthy foods.

Explanation:

Answer: no

Explanation:

Both types of the eggs have the same types of nutrients. White eggs and brown eggs are both nutritious. The answer to your question is no, white eggs and brown eggs have the same amount of nutrients.

Maria walks up hill to go to school every day. When she reaches the top of the hill, she is always breathing much faster than when she started. How might this affect how her heart is working? Support your hypothesis with evidence.

Answers

Answer:

''By doing hard activity, the pumps very fast.''

Explanation:

''By doing hard activity, the heart pumps very fast.'' is my hypothesis. In this hypothesis, I mentioned that during hard activity pumping of heart goes very fast because our body needs oxygen as well as energy in the form of ATP and the only way to get both oxygen and energy is the pumping of heart which supply oxygen to the cell as a result energy is generated in the form of ATP and removes carbondioxide gas by breathing.

factors that increase the role of diffusion​

Answers

Answer:

- temperature

- concentration gradient

- membrane permeability

Explanation:

the higher the temperature, the more kinetic energy the particles will have so they will move more quickly. the greater the concentration, the quicker rate of diffusion. when the permeability of the membrane increases the higher the diffusion rate.

hope this helps :)

1.The concentration of the two solutions. The bigger the difference of concentration between the two solutions, the bigger the rate of diffusion

2.The size of the molecules. The smaller the molecules the easier they diffuse

3.Temperature. If temperature increases molecules move faster.

Richard Caton used electrodes ______.
A. on the inside of a person's body
B. on the outside of a person's body

Answers

I believe it’s A. On the inside of a person’s body.

How does DNA fit inside a cell?

Answers

What ^ he/she said! Hope you have a good day :)

Earwax can build up in which part of the ear and block the pathway of sound?

Answers

Answer:

The pinna

Explanation

The pinna's main job is to gather sounds and funnel them to the eardrum

Answer:

the answer is ear canal

Explanation:

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