Analyze the diagram below:
According to the model represented in the diagram, which of the following would cause the cell to not express the lacZ, lacY, and lacA sequences?
Binding the RNA polymerase to the gene
Preventing the repressor from binding to the lac operon
Removing the inducer
Transcribing the lacl sequence
Answers
Answer:
Transcribing the lacl sequence
Explanation:
lacZ, lacY, and lacA sequences are the structural genes, which needs to be expressed in order to produce their proteinous enzymes required for the breaking down of lactose sugar. The transcription of these three genes must occur with the aid of RNA polymerase binding to them.
However, a gene sequence called lacI encodes information for an repressor, which when expressed can inhibit the expression of the genes lacZ, lacY, and lacA. Hence, the TRANSCRIPTION OF THE LACL SEQUENCE cause the cell to not express the lacZ, lacY, and lacA sequences.
Answer: removing the inducer
Explanation: all sequences need an inducer present in order for them to be expressed
Related Questions
write any two disvantages of local units
Answers
Answer:
1.it will run only at that particular local place.
2.the people of other places would not be able to understand those units system
Describe how plants reproduce asexually.
Answers
Answer:
bees who transfer pollen to other flowers
Explanation:
Answer:
Explanation:
Plants have two main types of asexual reproduction: vegetative reproduction and apomixis. Vegetative reproduction results in new plant individuals without the production of seeds or spores. Many different types of roots exhibit vegetative reproduction. The corm is used by gladiolus and garlic. this is googles definition
Give two uses of energy transferred by respiration in eukaryotes
Answers
Answer:
Most aerobic respiration takes place inside mitochondria. Some of the energy released in respiration is used to make larger molecules from smaller ones, to enable muscles to contract and to keep temperature steady. Some of the energy released in respiration in plants is used to make amino acids and proteins.
Explanation:google said it and i had this question in my science class and got it right
The uses of energy are - energy for metabolic reaction and growth and development of cells.
Cellular respiration provides energy with the series of complex chemical reaction cycles that is used for:
Working your muscles - for movement and physical activities energy is required.Growth and repair of cells - dividing cells, repairing them and development of the cells also require energy.Building larger molecules from smaller ones for instance proteins from amino acids.Allowing chemical reactions to take place.Absorbing molecules in active transport.Thus, The uses of energy are - energy for metabolic reaction and growth and development of cells.
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How do vaccinations work to provide immunity? and What body system regulates blood glucose levels? (For a Biology exam)
Thanks :)
Answers
Answer:
it trains the body immunity towards certain diseases
Explanation:
first of all we humans have two types of wbc cells phagocytes & lymphocytes. phagocytes produces pseudopodia which is like cytoplasm that traps or catches bacteria or viruses. lymphocytes produces chemical antibodies which destroy the viruses or bacteria by attaching to the virus and burst it out. Now when u get vaccinated u train those wbc cells for future viruses and hepl them to make antibodies to defend the body.
The blood glucose gets regulated by production of insulin in pancreas to maintain proper amount of glucose in the body
Cytoplasm is liquid that keeps the cell _________.
A: moving
B: airy
C: solid
Answers
Answer:
I think the cytoplasm keeps the cell solid.
Explanation:
Cytoplasm keeps all the cellular organelles suspended. The cytoplasm helps to keep them in place. It is also the site of most metabolic activities in the cell, and it allows materials to pass easily throughout the cell.
The cytoplasm is the liquid that keeps the cell solid. The correct option is C.
What is cytoplasm?
The cytoplasm is a liquid that is filled inside the cell. Between the cell membrane and the nucleus, there is a jelly-like fluid called cytoplasm. It facilitates material exchange and storage among cell organelles.
Cytoplasm helps the cell to stay still and rigid. It places all the cell organelle into a fixed place and the transfer of ions and molecules is also done by the cytoplasm. It is made up of water, salts, and other various material.
They help in the coming in of the materials and going out of the materials. They also protect the cell from shock and other invasive, they make the cell rigid and flexible and also protect recall from each other.
Thus, the correct option is C. solid.
To learn more about cytoplasm, refer to the below link:
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HELPPPPPPPPPPP THIS IS NOT A JOKE THIS IS DUE IN 3 MINUTES
Answers
Answer:
As chimpanzees evolve, they will become more similar to humans.
Hope this helps! :)
A sequence of a DNA template strand is shown. 3’ TCC AAT GGC TTA TTT GCA 5’ Which of these is the correct amino acid chain produced from the DNA template strand?
Answers
Answer:
Arginine- Leucine- proline- Asparagine- Lysine- Arginine
Explanation:
The correct amino acid sequence for 3’ TCC AAT GGC TTA TTT GCA 5’ would be - Arginine - Leucine - Proline - Asparagine - Lysine - Arginine
The genetic code is stored in a sequence of three nucleotide bases sequence of DNA called base triplets, which act as a template for which messenger RNA (mRNA) is transcribed.
A sequence of three successive nucleotide bases in the transcript mRNA is called a codon.The template strand is one of the DNA strands whose base sequence helps in building mRNA through complementary base sequencing.Template strand or runs in 3'- 5' direction, opposite to the coding strandEach codon code for the specific amino acid.The coding strand for the given template strand would be: 5' AGG UUA CCG AAU AAA GCA 3'Each amino acid code for Arginine - Leucine - Proline - Asparagine - Lysine - ArginineThus, The correct amino acid sequence for 3’ TCC AAT GGC TTA TTT GCA 5’ would be - Arginine - Leucine - Proline - Asparagine - Lysine - Arginine
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HELP PLS PLS PLS PLS
Answers
Answer:
lizards cooperate to find food and share what they find with other lizards
A species is a group of organisms so similar to one another that they can breed and produce fertile offspring. True or False.
Answers
Answer:
True
Explanation:
That is the exact definition that I learned.
I’m confused on what’s the secret code
Answers
Answer:
the code is 98201408
Explanation:
Answer:
the code is 099955766580
How does oxygen enter the cells of the tube worm
Answers
Answer:
Flatworms are small, literally flat worms, which 'breathe' through diffusion across the outer membrane (Figure 2). The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen.
Explanation:
Hope this helps!
Answer:
This is what you need
Explanation:
Flatworms are small, literally flat worms, which 'breathe' through diffusion across the outer membrane The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen.
Explain how roots hair cells use osmosis to take up water.
Answers
Answer:
Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption.
Explanation:
Answer:
Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption.
Amoeba Sisters: Cell Cycle and Cancer Video notes
All living things are made of cells is part of the
Functions of
our cells are regulated as part of something called the
Cells can grow and increase in size, however, a multicellular organism increases in size
through
Cancer partly comes from cells that
With some cancers, there may be
links, meaning it might run in
families. Other causes, in addition to genetics, may be exposure to
radiation, or excessive exposure to
from the sun's rays.
When cancer cells divide, it can give rise to a
Some of them stay put
but some do not. Treatments have been developed, such as radiation and
therapy that target cells that
rapidly.
Cells are in one of two different phases of the cell cycle:
-- where the cell is growing, replicating their DNA, and doing their cell
functions.
_- includes splitting of the DNA, cytoplasm, and dividing to make more
cells.
Cells spend most of their time in
which is made up of
(synthesis), and DNA is replicated in phase.
The cell cycle has checkpoints to make sure things are happening correctly, there is one
in one in and one in
There are many
_involved with regulating the cell cycle.
Some cells do not go through all of the phases. Some cells are in which is a
phase for cells, such as the cells in the
and spinal cord.
This is why damage to these organs can have challenges with healing, because many of
those cells may not be able to
Answers
Answer:
if u ask a tutor u can get the answer faster than having to wait on random people to answer your question for you
I need help on those two questions
Answers
7-C(they secrete acid that breaks away rocks)
The function of root cap is.....
A.
Absorb water
B.
Enlarge the absorption of water
C.
Growth of root
D.
Protects apical meristem
Answers
Please help me ASAP real quick n easy
Answers
Answer:
Carbon monoxide gas.
Explanation:
The others are direct sources of groundwater pollution as the go directly on the ground. Hope this helps!
Earthquakes that occur far from plate boundaries are called
Answers
Answer:
intraplate' earthquakes
Explanation:
glucose molecules moving through protein channels is an example of what type of transport
A- Facilitated diffusion
B- Active transport
C- Passive transport
D- Osomosis
Answers
Answer:
B-active transport
Hope it will help
Thank you
Your presentation should include the following:
Detailed descriptions of what happens during:
photosynthesis (the light-dependent reactions and the light-independent reactions)
transitioning between photosynthesis and respiration
cellular respiration or fermentation
An explanation of how the molecules in photosynthesis and cellular respiration are similar. Please include descriptions of the molecules involved in each of the processes above.
Complete sentences should be used in all written descriptions and explanations
Illustrations, diagrams, or images that help explain the transition between the reactions of photosynthesis and cellular respiration.
You can create your own images, or use images from websites or other sources.
If you use premade images, you will need to give a reference of the source of that image and create your own unique caption to describe the image.
Your presentation should be detailed and organized, but it can be presented in a variety of ways:
illustrated story
slide presentation
comic strip
please i need this ASAP!!!!
Answers
Answer:
1. In the process of photosynthesis, plants convert the energy of sunlight into chemical energy stored in the bonds of carbohydrates.
a. The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH. In plants, the light reactions take place in the thylakoid membranes of organelles called chloroplasts.
b. In the Calvin cycle (light independent reactions), carbon atoms from CO2 are fixed (incorporated into organic molecules) and used to build three-carbon sugars. This process is fueled by, and dependent on, ATP and NADPH from the light reactions. Unlike the light reactions, which take place in the thylakoid membrane, the reactions of the Calvin cycle take place in the stroma (the inner space of chloroplasts).
2. When transitioning to respiration, photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
3. Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP. Overall, this three-stage process involves glucose and oxygen reacting to form carbon dioxide and water.
a. Fermentation refers to the metabolic process by which organic molecules (normally glucose) are converted into acids, gases, or alcohol in the absence of oxygen or any electron transport chain.
4. They are similar because they both produce energy but in two different forms.
Photosynthesis- It produces oxygen and G3P, simple carbohydrate molecules that are high in energy and can be converted into glucose, sucrose, or other sugar molecules.
cellular respiration-During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water.
Explanation:
1. A process in which the plants prepares their food from inorganic compounds and light energy is called photosynthesis.
The energy stored in the carbohydrates is used in the preparation of chemical energy.
a. In reactions that use light for the process is called light-dependent reactions. It transpires in the thylakoid organelle of the chloroplast. The light is needed for the synthesis of ATP and NADPH which is a reduced electron carrier.
b. The reactions in which the carbon dioxide is fixed from the carbon source to produce three-carbon sugars is called light-independent reactions. The process of the Calvin cycle transpires in the stroma of the chloroplast.
2. When transpiration changes to the respiratory pathway then glucose is produced during photosynthesis and is used in the process of cellular respiration to produce ATP.
The produced glucose gets converted back into carbon dioxide through the process of expiration.
The water molecules get broken into oxygen during photosynthesis and in another process of cellular respiration, the oxygen combines with hydrogen to yield water.
3. The aerobic process that requires oxygen molecules to break glucose molecules in living organisms to produce ATP and releases energy is called cellular respiration.
The process comprises a reaction between glucose and oxygen to produce carbon dioxide and water.
a. The metabolic process in which the organic molecules are converted to gases, alcohol and acids in the absence of ETC or oxygen is called fermentation.
4. The process of photosynthesis and cellular respiration have similar molecules as:
In the photosynthesis process molecules produced are oxygen, carbohydrates that are high in energy and get converted to glucose or other sugar molecules. In cellular respiration, glucose gets broken into water and carbon dioxide.
See the attached image below for the diagrammatic transition between photosynthesis and cellular respiration reactions.
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If an enzyme has been denatured, can it “renature” if it’s returned to its normal temperature and pH range?
Answers
Answer:
No ot can't
Explanation:
Because the enzyme has changed its shape it has become unreversably denatured the active site does not match the substrate thefore their will be no reaction
I hope that helped
Please I need the the experimental group, the control group, independent variable, dependent variable and controlled variable and a summarized version of the experiment by today please!
“Chad is attempting to determine how different colors of light
affect plant growth. Chad places one spider plant in a cabinet
under a blue light and one spider plant in a cabinet under a red
light. Chad knows he needs to compare his plants to a plant
grown under white light so he places a third spider plant on the
window sill where the sun shines. All plants are the same age
and are given equal amounts of light time, plant food and water.
At the end of a two week period, Chad will measure the height of
each plant.”
Answers
Answer:
can you please answer my question please
Explanation:
pleaseee
Explain at least three ways in which a mutation in an individual's DNA could occur, and describe at least 2 effects a mutation could have on an individual's traits.
Answers
Answer:
Explanation:
Three ways in which mutation could occur are
1) If an error occurs during DNA replication and it's not corrected in time by DNA polymerase.
2) If there is a deletion of a base(s) in the sequence of the DNA. The deletion of a DNA nucleotide/base could also cause a mutation as that could affect the formation of an enzyme or protein useful in building and/processing certain body parts/processes.
3) Thymine dimerization: Thymine dimers are mutations that prevent DNA from replication or even transcription hence preventing a cell from undergoing division (hence causes cancer). They are formed when covalent bonds are formed between the bases of a DNA sequence (somewhere around the carbon-carbon double bond).
The two effects are
1) It could cause cancer as described in (3) above (in the case of thymine dimer)
2) It could lead to deformity in an individual because of the gene that is supposed to code for the last finger has a base deletion, that could eventually lead to the absence of that finger or a shorter or "strange" finger.
Human blood's pH is 7.4. What kind of drinks are safe for us.
*
Highly Acidic
Neutral or close to neutral
O Highly Basic
pH O, PH1, PH13, and pH14
Answers
how do the respiratory and circulatory systems work together to maintain homeostasis
Answers
What type of substance do humans make?
Answers
Answer:
Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium. All 11 are necessary for life.
Explanation:
Brainliest; please?
How do the circulatory system and immune system work together to respond to an injury?
Answers
Answer:
The number of white blood cells in the blood can increase during an immune response. These cells travel through the circulatory system and the lymphatic system to an injured or infected area of the body. White blood cells leave the blood vessels and travel into the damaged tissue, where the immune response takes place.
First correct answers get Brainlies. Spam answers get flagged.
New Zealand has a population of 4,326,380 and has an area of 103,736 miles squared while Australia has an area of 2,967,909 miles squared and a population of 21,905,140. Explain how New Zealand can have a larger population density than Australia even though it has a smaller total population.
Answers
The reason they have a higher population density is because they have more people on average in a certain area, because New Zealand is smaller they are given less space to live, this means that more people are crammed together, making the density of people within a square mile higher. When you give less square miles, you reduce the amount you have to divide the population by, which makes the density go up.
( In case you wanted the calculations for the density on New Zealand and Australia, it is about 41 to 42 people a square mile in Zealand, and maybe 7 or 8 per square mile in Australia.)
Hope this helps, if not, comment below please!!!
Which of the following explains why some plants look green?
Your Answer
A
chlorophyll is the main plant pigment and it absorbs mainly wavelengths of light that are
B
chlorophyll is the main plant pigment and it transmits mainly wavelengths of light that ar
chlorophyll is the only type of plant pigment found in leaves
x plants contain different pigments which absorb and transmit different wavelengths of ligi
Back
C chlorophyll is the only type of plant pigment found in leaves
Answers
Answer:
the answer is a
Explanation:
An agricultural biologist was evaluating two newly developed varieties of wheat as potential crops. In an experiment, seedlings were germinated on moist paper towels at 20ºC for 48 hours. Oxygen consumption of the two-day-old seedlings was measured at different temperatures. The data are shown in the graph below. In a second experiment, variety A seedlings at both temperatures were treated with a chemical that prevents NADH from being oxidized to NAD+. Predict the most likely effect of the chemical on metabolism and oxygen consumption of the treated seedlings. Explain your prediction.
Answers
Answer:
The definition is listed in the clarification segment below, and according to the present circumstances.
Explanation:
It undergoes different morphological as well as biochemical modifications mostly during germination. Product contains nutrients and even some hydrolases such as energy, carbohydrates. Owing to the availability of phytic compounds, the seed coat seems to be very durable in nature. Hydrolytic enzymes launch their function by consuming oxygen throughout order to remove this hard coating. In several other processes, including the electron transport system as well as the Kreb process, oxygen also becomes necessary.
The initial phase of germinating seeds requires anaerobic environments where even the enzymes dehydrogenase can function. The subsequent dehydrogenase enzyme brings the electron throughout the electron transport system from either the base to oxygen. Unless the oxygen frequency is compared with varieties A and B, it can be seen through the analysis that variety B actually absorbed more oxygen. Oxygen intake rates are also depending upon period.The impact of temperature mostly on absorption of oxygen seems to be present. Shift the supply at low temperatures have a low intake of oxygen, while varieties grown over extreme temperatures use much more oxygen. The metabolism of such a seedling is influenced by temperature. Metabolically active young plants display a larger intake of oxygen.PLEASE HELP QUICKLY ;-;
50 points and brainliest for first correct answer please help I'm desperate lol