If laco were mutated, what effect would this have on lactose metabolism?

Answers

Answer 1

Answer:

If lacO were mutated, what effect would this have on lactose metabolism? The repressor would not properly bind to the operator, and the lac operon would be over expressed. How does the cell recognize that lactose needs to be metabolized? Lactose is converted into allolactose, which inhibits the lac repressor.

Explanation:


Related Questions

Birds and insects both have wings, but we do not consider this similarity as evidence of relatedness because ____.

Answers

The wings in birds and insects are not considered as evidence of relatedness because they differ in structures even though their functions may be the same.

Organs in different organisms that are different in structures but similar in functions are referred to as analogous organs. Even though analogous organs serve as evidence of organic evolution, they are indications that organisms differ in the paths taken to evolve.

Some other organs may be similar in structures but different in functions. These types of organs are known as homologous organs and are indications that organisms are kind of related in the path taken to evolve.

More on analogous organs can be found here: https://brainly.com/question/11915249

Based on cell theory, which of these answer choices would describe one reason a virus is considered nonliving?

Answers

Answer:  Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.

Sedimentation accumulation found in bodies of water can be the result of _______. A. Fertilizer runoff b. Pesticides and herbicides c. Erosion from agricultural practices d. All of the above.

Answers

Answer:

All of the above.

Explanation:

All of these can contribute to sediment accumilation in bodies of water.

Sedimentation accumulation found in water bodies can be the result of fertilizer runoff, pesticides, pesticides, and erosion from agricultural practices. So, the correct option is D.

What do you mean by Sedimentation accumulation?

The sedimentation accumulation may be defined as a process of gathering sediments into the rocks, and water bodies, and increasing their actual mass.

Sedimentation accumulation may be carried by the runoff of fertilizers, pesticides, and insecticides. It also occurred due to the process of soil erosion that takes place during agricultural practices.

Therefore, the correct option for this question is D.

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identify the location of reduction in an electrochemical cell.

Answers

Answer:

cathode electrodes.

Explanation:

Electrochemical cells have two conductive electrodes, called the anode and the cathode. The anode is defined as the electrode where oxidation occurs. The cathode is the electrode where reduction takes place.

how many alleles for each gene does an organism carry?

Answers

two alleles hope it helped
an organism carries two alleles

Are mitochondria found in animal cells? Explain.

Answers

Answer:

Mitochondria is found in animal cells.

General Formulas and Concepts:

Cellular Respiration

TCA CycleETC/Chemiosmosis

Explanation:

The production of ATP is found mainly in the mitochondria. Producing ATP must undergo cellular respiration. All plants and animals go through cellular respiration to provide energy for everyday actions needed by cells. Therefore, both plants and animals have mitochondria.

Topic: AP Biology

Fair weather, rain showers, clear and cold, and warm and windy are examples of which of the following?
A. weather alerts
B. weather conditions
C. weather movement
D. weather processes

Answers

Answer:

C. weather movement

Explanation:

correct me if im wrong

True/False: In a neuron at rest, the concentration of sodium ions is 14 times higher outside the cell than inside the cell.

Answers

Answer:

true

Explanation:

The sodium and chloride ion concentrations are lower inside the cell than outside, and the potassium concentration is greater inside the cell. These concentration differences for sodium and potassium are due to the action of a membrane active transport system which pumps sodium out of the cell and potassium into it.

What is the probability that a couple will have a type A child if the mother has Type
A blood and is heterozygous for the trait and the father has type AB blood?

Answers

Answer:

50%

Explanation:

To solve this, we'd need to use a Punnett square.  Since the mother has a heterozygous genotype and has an A-blood phenotype, we know that she is AO and the father is AB.

          A             B

A       AA           AB

O      AO           BO

According to this, the four possible blood types, with equal probability are: AA, AB, AO, and BO.  Both AA and AO genes will result in type-A blood, since A is dominant over O.  Therefore, there is a 2 in 4 (or 1 in 2, or 50%) chance of the child having type-A blood.

Someone plz help me :(

Answers

Answer:

it's a or c but I think it's a

The purpose of the foot of a molluscs is:

Answers

Answer:

Foot of a molluscs is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study.

help pls !! will give brainliest -


7A - Indicate the complementary strand of the DNA molecule shown here.

5’ A A T C G C T G C C T 3’

7B - If the original DNA molecule shown in question 7A were used in the process of transportation to produce mRNA, then what would be the sequence of the mRNA molecule?

(please answer both questions)

Answers

Answer:

A A T C G C T G C C T  

T T A G C G A C G G A

U U A G C G A C G C A

Explanation:

Adenine (A) and Thymine (T) pair together. Cytosine (C) and Guanine (G) pair together.

With mRNA, the RNA doesn't have Thymine, so it replaces it with Uracil (U).

where is the inherited information that determines a cell’s function?

Answers

Answer:

Genes

Explanation:

The hereditary information (inherited information) is contained in genes, located in the chromosomes of each cell.

Have a nice day!

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- Heather

What is released by fat cells to signal that the body has had enough to eat, and also influences BMR

Answers

I believe it is leptin.

Which organelle is the control center of the cell; contains DNA; only found in Eukaryotic cells?
A. Mitochondria
B. Nucleus
C. Lysosome
D. Ribosome

Answers

The nucleus contains DNA and is only found in eukaryotic cells

What might scientists learn about the evolution of human behavior from studying cognitive behavior in animals?

Answers

Answer:

When we gain insight into animal behavior, we are in a stronger position to understand vexing conservation problems, such as how to save endangered species, assess environmental quality, design nature preserves, and evaluate the importance of human-related threats to survival in otherwise fit animals.

Explanation:

Please help me!!! ASAP

Answers

we can tell this would be photosynthesis since light is in the equation :D

cellular respiration

Explanation:

A

What can bacteria do with “broken down” materials ?

Answers

Bacteria have the ability to break down dead organisms into smaller particles and create new compounds. We use decomposers to restore the natural nutrient cycle through controlled composting. Bacteria secreting enzymes out of their cells into the soil or dead organism. The enzymes digest the organic material. When they break down organic material, they give off heat. Billions of aerobic bacteria working to decompose the organic matter in a compost pile causes the pile to warm up. As the temperature rises, different organisms thrive.

Which type of tooth is used to fragment foods into ever-smaller chunks by shearing, slicing, crushing, and griding

Answers

It’s the Premolars (bicuspids)

bones that surround the spinal cord are classified as

Answers

Answer:

the answer is vertebral bones

Explanation:

the vertebral bones surrounded our spinal cord and our skull acts as an internal crash helmet to protect our brain

HELLLP!!!!! Seeds are one way that plants reproduce. What are the reproductive advantages of using seeds to reproduce? What are the two major divisions of seed plants, and how do plants in each of these divisions reproduce?\

Answers

Explanation:

1-Seeds provide a protective coat so that the embryo plant can develop when it finds a nice piece of soil.

2-Vascular plants are subdivided into two classes: seedless plants, which probably evolved first (including lycophytes and pterophytes), and seed plants. Seed-producing plants include gymnosperms, which produce “naked” seeds, and angiosperms, which reproduce by flowering.

Here u go <3

Answer:

The Seed Coat. The seed coat is one major advantage seeds have over spores. Nourishment. Each seed contains nourishment for the embryo inside the seed.

Explanation:

what type of fossil forms when the impression from the remains of an organism is filled in with soil and hardens into the shape of the original organism?

Answers

Answer:

casts

Explanation:

casts are formed by filing the cavity of minerals collected from the surrounding

Answer:

i belive the answer is "casts"

Explanation:

This is a question on the circulatory system. I don't understand how the pathway that the blood goes through in the heart makes it oxygenated. Could someone pleas explain to me what each part does and how when it goes to the lungs it gets oxygenated?

Answers

Answer:

deoxygenated blood is pumped back to the heart with the superior vena cava and inferior vena cava. Blood is then in the right atrium then it is pushed to the right ventricle in the heart. it is the pumped through the pulmonary artery to the lungs(the pulmonary artery is the only artery that carries deoxygenated blood). In the lungs blood is pumped to the cappilleries in the bronchus where oxygen in the air is passed through to the blood with heamoglobin and thus now the blood is oxygenated. The blood is the pumped brought back to the heart with the pulmonary vein(the pulmonary vein is the only vein to carry oxygenated blood).It flows into the left atrium where it is then pushed down into the left ventricle and is then pumped up through the aorta to the whole body.

Explanation:

I hope this explains what you asked.

Please help quick!

How are Protista different from Bacteria?

a) Protista have nuclei and Bacteria do not.
b) Protista reproduce asexually and Bacteria do not.
c) Protista are heterotrophic and Bacteria are not.
d) Protista have cilia and Bacteria do not.

I'll mark brainliest if correct!

Answers

Answer:a

Explanation:

the main enzyme involved in linking individual nucleotides is

Answers

Answer:

The primary enzyme involved in this is DNA polymerase which joins nucleotides to synthesize the new complementary strand.

One variable not mentioned in the description of the experiment that could affect the results of the investigation is reduced canopy cover. Describe the effect that canopy cover would likely have on the results of the investigation.

Answers

The canopy cover can affect the results of an investigation because a higher canopy cover is accompanied by a decrease in the availability of sunlight.

The canopy cover is the proportion of the ground covered by vegetation when it is viewed from vertically above the planted area.

The level of canopy cover affects light availability on the ground and also its microclimate, thereby this feature can also alter any biological experimental procedure by affecting the level and type of biodiversity.

A reduced canopy cover may alter any experimental outcome by increasing the energy/light input in the ground cover stratum, thereby likely affecting biodiversity.

Learn more in:

https://brainly.com/question/9199868

Can you please help me

Answers

I am here to give the brainiest answer not to get points

Answer: yes

Match the color components of light with the resulting color of light
A. Yellow
B. White
C. Magenta
D. Cyan
____1. Red + Green
____2.Red + Blue
____3. Green + Blue
____4. Red + Green + Blue

Answers

1. A
2. C
3. D
4. B

Explanation:

Answer:

» 1. A. Yellow » 2.C. Magenta» 3.D. Cyan » 4.B. White

Which of the following is TRUE about ovarian cysts?

Answers

Answer:

d. All of the above

Explanation: is correct.

Answer:

ALL OF THE ABOVE

Explanation:

Write the function of nucleus in the cells of organism​

Answers

Answer:

The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.

Explanation:

HOPE IT HELPS...............
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