50 points please help, will give brainliest
Fill in the blanks in the following paragraph:
The lac operon genes are a series of 3 genes used to create enzymes to digest the sugar _________. When lactose is NOT present a ___________ protein is attached to the promotor site, preventing ______________ from binding to the promotor site, and transcribing the DNA. This protein is also needs _____________ factors, which are a group of proteins which regulate transcription of genes. When lactose IS present, the ________________ protein falls off and __________________ binds to the promotor, initiating transcription.

Answers

Answer 1

Answer:

lactose, repressor, RNA polymerase (or mRNA might fit here), transcription, repressor, RNA polymerase

Explanation:

Hope this will help.


Related Questions

ASAP!! In the past, plants and fungi were classified together into a single kingdom. What new scientific knowledge led to their current classification into separate kingdoms?


A. It was discovered that plants do not function as decomposers in ecosystems.


B. It was discovered that fungi lack body structures for locomotion.


C. It was discovered that plants could be unicellular.


D. It was discovered that fungi are heterotrophic.

Answers

Answer:

D

Explanation:

fungi are heterotropic therefore they cannot produce their own food. plants can since they are autotrophic

The new scientific knowledge led to their current classification into separate kingdoms as It was discovered that fungi are heterotrophic. Thus, option D is correct.

What are fungi?

Fungi and plants are currently classified into two distinct kingdoms. However, due to some of their common observed features, they were once classified together as one kingdom. Fungi are a group of heterotrophic organisms that possess cell well while Plants are group of autotrophic organisms that also possess cell wall.

Previously, the observable similar features were the basis of classification of organisms. It was observed that fungi and plants were nonmotile i.e. cannot locomote, and possessed a fixed body structure that grew out of the soil (fungi mushroom).

Therefore, The new scientific knowledge led to their current classification into separate kingdoms as It was discovered that fungi are heterotrophic. Thus, option D is correct.

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Why is the time series useful as a management tool?
A) It estimates the probability of extinction.
B) It estimates the harvested numbers.
C) It monitors a population's age structure.
D) It designates wildlife refuge areas.

Answers

Answer:B

Explanation:

The answer is C if I am wrong tell me.

please answer asap
Describe the disadvantages and advantages of single use plastic.

Answers

Answer:

"There are many advantages of plastic materials such as:

They are light weight. They are water resistant. They are durable. They are strong.

...

Disadvantages of using ""plastics"" are:

They pollute our environment.

They pose a danger to wildlife.

They do not degrade quickly.

Explanation:

Describe the movement of oxygen and carbon dioxide in tissues other than the lungs?

Answers

Answer:

Gas Transport in the Human Body

Explanation:

Once the oxygen diffuses across the alveoli, it enters the bloodstream and is transported to the tissues where it is unloaded, and carbon dioxide diffuses out of the blood and into the alveoli to be expelled from the body.

Write 3 things about Cell Structure and Function.

Answers

Answer:

The cell structure comprises individual components with specific functions essential to carry out life's processes. These components include- cell wall, cell membrane, cytoplasm, nucleus, and cell organelles. Read on to explore more insights on cell structure and function.

Answer:

The cell has a nucleus that controls and regulates the activities of the cell and carries genes.

The cell has a cell membrane that is made of phospholipids and allows materials to pass through.

The cell has mitochondria that create energy for the cell.

Explanation:

what does the chromatin do in the cell?

Answers

Answer: it's Chromatin

because Chromatin is a substance within a chromosome consisting of DNA and protein. The DNA carries the cell's genetic instructions. The major proteins in chromatin are histones, which Chromatin is located in the nucleus of our cells. The primary function of chromatin is to compress the DNA into a compact unit that will be less voluminous and can fit within the nucleus. Chromatin consists of complexes of small proteins known as histones and DNA. hope this helps have a nice day ❤️❤️❤️

Explanation:

Control of rickettsial infections requires _____.

regular bathing
antibiotics
insect control
quarantine

Answers

Answer:

insect control

Explanation:

The control of rickettsial infections requires the control of insects.

Rickettsial infections are caused by obligately intracellular Gram-negative bacteria that can only live inside a host organism. The host organisms are usually insects such as ticks, fleas, lice, etc. and a bite from any of the insects hosting the bacteria represents the only through which the infections are transmitted.

Hence, controlling the insects that serve as hosts for the bacteria will go a long way in controlling rickettsial infections.

Answer: insect control

Explanation:

Mitosis results in which of the following?

A. Two cells with different genes.

B. Two cells with identical genes.

C. Four cells with different genes.

D. Four cells with identical genes

Answers

Answer:

The correct answer is B.

Explanation:

Mitosis usually results in two identical daughter cells, whereas meiosis results in four sex cells.

Is a rock that changes from brown to red chemical or physical weathering

Answers

Answer:

chemical

Explanation:

Answer:

That would be an example of physical weathering.

Explanation:

Hope this helps you out!

what is a non example of a community?

Answers

Ex: inheritances, pensions

Hope it help you

in a reproducing cell , the dna is found in the structures known as

1. Lysosomes
2. Chromosomes
3. Vacuoles
4. Ribosomes

Answers

Answer: 2. Chromosomes

Answer:

Chromosomes.

Explanation:

Lysosomes contain enzymes,

Ribosomes contain protein and synthesize protein,

and Vacuoles exist in plant and animal cells to help maintain balances in their functions.

Chromosomes carry DNA.

HELP ME FAST pleaseeee thanks

Answers

Answer:

you cant read it

Explanation:

I’m pretty sure it’s transparent

Which of the following involves only abiotic factors?
A. a large rock being weathered by wind and rain
B. an otter using a stone to break open a sea urchin
C. a spider building a web in the corner of a building
D. a pine tree absorbing light from the Sun

Answers

A. This is because neither a rock, wind, or rain is a living organism.  

Answer:

A. a large rock being weathered by wind and rain.

What is the scientific name of the Indian Cobra?

Answers

Answer:

Naja naja

Brainliest?

What are the rarest animals

Answers

Answer:

Black-footed Ferret.

Addax.

Northern Bald Ibis.

Cross River Gorilla.

Saola.

Amur Leopard.

Philippine Crocodile.

Sumatran Rhino.

Explanation:

Answer:

1. Vaquita

2. South China Tiger

3. Sumatran Rhino

4. Philippine Crocodile

5. Amur Leopard

6. Saola

7. Cross River Gorilla

8. Northern Bald Ibis

9. Addax

10. Black-footed Ferret

what is the function of gland in stomach?​

Answers

Answer:

Digestive glands play a role in producing digestive enzymes. Enzymes produced by the digestive gland are needed to assist the digestion of the food, making it easier to absorb the body.

This external structure is often a feature of bacterial pathogens; it aids in allowing the bacterium to counteract the body's immune system cells, such as avoiding phagocytosis.

Answers

Answer:

Bacteria capsule.

Explanation:

The bacteria capsule is a layer of polysaccharides that is around the bacteria membrane. Its principal function is to protect the bacteria from dehydration, destructive toxins,  and cells that can destruct the bacteria, such as phagosomes. As a result, the bacteria have a higher probability of surviving and colonizing.

Which of the following cells is responsible for producing antibodies when antigens enter the body?

Answers

B lymphocytes or B-cells are responsible for producing antibodies when antigens enter the body.

What is Antibody?

An antibody may be defined as a protein produced by plasma cells in response to a specific antigen.

The major function of an antibody is to eliminate disease-causing organisms which are known as pathogens and barricade them from contaminating human cells.

Plasma cells of the body produce B cells and memory. B cells play an essential role in producing antibodies while memory cells initiate the process of secondary infection.

The complete question is as follows:

B-cellsT-cellsDendritic cellsNatural Killer cells.

Therefore, B lymphocytes or B-cells are responsible for producing antibodies when antigens enter the body. Hence, the correct option is A.

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1. Binary fission is observed in (a) Hydra (b) yeast (c) Amoeba (d) human being

Answers

Answer:

Amoeba

Explanation:

Binary fission is a type of asexual reproduction in which a cell divides to form two cells. It occurs in organisms that are protozoans. This means that two new daughter cells are formed in the process.

During the process of binary fission, the cell Is divided into two, this means that the DNA is replicated in both parts so that each of these cells becomes an independent organism, this means that they would be able to survive and function on their own.

Hence from the options listed, binary fission is observed in Amoeba

A 100x lens is also known as what?

Answers

Answer:Most compound microscopes come with interchangeable lenses known as objective lenses. Objective lenses come in various magnification powers, with the most common being 4x, 10x, 40x, and 100x, also known as scanning, low power, high power, and (typically) oil immersion objectives, respectively.

Explanation:Hope this helped u also may i plz have brainlist only if u wanna give me brainlist though! Have an great day kind sir or ma'am.

(GIVING BRAINLIEST!!)

Which statement below is true?

A) When the humidity is low, water droplets form on cold surfaces.
B) When wind speed is low, a windsock stays up in the wind and appears full.
C) When you go higher in the atmosphere, the air pressure gets lower.
D) When the air temperature is high, the air feels cold against your skin.

Answers

Answer:

I ACTULLY THINK ITS BETWEEN

C AND D

Answer: D

Explanation:

Write about examples of how science has impacted your life.

Answers

Answer:

Science has made it much easier to understand the world around us, Work, improve technology, and planning ahead.

Explanation:

Scientific knowledge can improve the quality of life at many different levels—from the routine workings of our everyday lives to global issues. Science informs public policy and personal decisions on energy, conservation, agriculture, health, transportation, communication, defense, economics, leisure, and exploration. When scientific discoveries are combined with technological developments, they have resulted in the machines which are making our lives easy to manage. From household appliances to cars and planes, all are the result of science. Science has made it possible for farmers to save their crops from pests and other problems.

If an mRNA strand has the following sequence: AAA GUU CCA, what
would the corresponding DNA sequence be?

Answers

Answer:

AAA GUU CCA -> UUU CAA GGU

(i think its that)

Answer:

UUU CAA GGU

Explanation:

I don't wanna explain get a life

compare and contrast the rock cycle and the carbon cycle

Answers

Answer:

The rock cycle and water cycle overlap with erosion, transporting, and deposition.carbon atoms are used repeatedly on Earth and cycled between the atmosphere, hydrosphere, biosphere, and lithosphere through processes

Explanation:

The rock cycle and the carbon cycle are two different types of natural cycles that occur on earth. The difference include components, processes, time scale, human impact, and environmental implications.

What is the difference between rock cycle and carbon cycle?

The rock cycle is a continuous process that occurs over millions of years, during which rocks are transformed from one type to another. There are three major types of rocks: igneous, sedimentary, and metamorphic. Each type of rock is formed through a different process.

The carbon cycle is the process by which carbon is cycled between the atmosphere, oceans, and living organisms. Carbon is essential for life, and is found in all living organisms. The carbon cycle is driven by photosynthesis, respiration, and decomposition.

During photosynthesis, plants absorb carbon dioxide from the atmosphere and use it to build organic molecules. These organic molecules are then consumed by other organisms, and carbon is transferred up the food chain.

When organisms die, their bodies are decomposed by bacteria and fungi, which release carbon dioxide back into the atmosphere.

In addition, carbon is stored in fossil fuels such as coal, oil, and natural gas, which are formed from the remains of ancient plants and animals. When these fuels are burned, carbon is released into the atmosphere, contributing to global warming.

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Using Anthony's symptoms and initial lab results, describe how you diagnosed that the problem was kidney failure.

please help me

Answers

can you show an image of the question?

The process by which organisms obtain energy from inorganic compounds instead of from light is ______


Answers

Answer:

Chemo-synthesis

Explanation:

Chemo-synthesis occurs in bacteria and other organisms and involves the use of energy released by inorganic chemical reactions to produce food in the absence of sunlight.

(e)
The graph shows the number of confirmed cases of salmonella food
poisoning in the UK during one year.
1200
1000
Number of
confirmed
800
cases of
salmonella
food
600
poisoning
400
200
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month
Suggest one reason for the high number of cases of salmonella food
poisoning in the summer.

Answers

Answer: People are outside and don’t wash their hands as often

Explanation:

explain how can environmental conditions and individual choices can influence the expression of an organism's inherited traits

Answers

Answer:

"Environmental conditions and individual choices can influence the expression of an organism's inherited traits." It means that if you go out in the sun and lie down, then your skin would get darker

Explanation:

What animals compete over ants as a food source?

Answers

Answer:

Birds, Lizards, Toads, Snakes, Coyotes, and Spiders

Explanation:

Just looked this up! Source: tpwd.texas.gov

*
contains the DNA and controls all of the cell's activities
Please help me !

Answers

Answer:

Nucleus

Explanation:

Nucleus contains the DNA and controls all of the cell's activities

#HopeItHelps

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