Answer:
In activity 1, lacZ was expressed under the lactose culture evidenced by 2c having the highest b-gal activity. There is a sign of activation in lactose culture since allolactose (inducer) which is an isomer of lactose, binds the repressor protein.
Explanation:
Answer: What my dude rays said trust me he is smart!!! :)
HELP PLEASE NEED ANSWER
Answer:
telophase
Explanation:
1. If you were a transformer, what vehicle would you turn into?
2. What laws would you abolish if you could? What laws would you create?
3. If you were a food, what food would you be?
4. What animal would be way better if it was covered in scales?
5. What would be your strategy for a zombie apocalypse?
6. If you could be the CEO of any company, what company would you choose?
Answer:
1. I would turn into Lambo (black and neon green)
2. I would abolish the laws that require children to go to school. I would create a law saying that you can't be a stuck up p*rv if you want to be president.
3. I would be bacon. Don't ask.
4. Hedgehog. ;-;
5. Break into Ariana Grande's house and protect her.
6. Amazon because Jeff Bezos is literally the RICHEST man in the world atm.
Sorry it took so long T^T
This was fun doee
Onion Cell mitosis
Answer:
onion cell have a lot of cell u such look it up how many cell do onion have
Answer:
ogres have layers.
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•
•
•
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Which of the following has not sped up the erosion of wetlands in coastal Louisiana?
A. dredging of thousands of kilometers of canals throughout the wetlands
B. the increase in acidity of the rainwater in the southeastern United States
c. the loss of barrier islands the cost of Louisiana
D. the 2010 Deepwater Horizon well blowout
Answer: B. the increase in acidity of the rainwater in the southeastern United States
Explanation:
The dredging of thousands of canals throughout the wetlands for easier navigation has sped up the erosion of Louisiana wetlands so option A is false.
The loss of barrier islands on the coast of Louisiana as a result of rising sea levels has also sped up the erosion of the wetlands as they are now more exposed to open water so option C is wrong as well.
The 2010 Deepwater Horizon disaster spilled so much oil that adversely affected the wetlands leading to their erosion so option D is wrong as well.
Option B is therefore right.
Bromothymol blue (BTB) is a chemical that can be used as an indicator of the pH of a solution. Because CO2 produces an acid in water, BTB can indirectly measure how much CO2 is present in a solution. When placed in solutions with neutral pH (little CO2), the solution appears green. In solutions with low pH (high CO2), the solution appears yellow.
A teacher performed a demonstration to investigate how photosynthesis and respiration cycle carbon and oxygen. She placed a few drops of BTB in a test tube containing distilled water. Because distilled water has a neutral pH, the solution appeared green. The teacher used a straw to blow into the solution, and the solution turned yellow. She then placed an aquatic plant into the test tube, covered it to keep it air tight, and placed it under a light for 24 hours.
What color would the solution in the test tube be after being in the light, and what would it be if it were then placed in the dark for 24 hours, and why?
A
Green after being placed in the light because the plant would remove CO2 by photosynthesis; yellow after being placed in the dark because the plant would release CO2 by respiration.
B
Yellow after being placed in the light because the plant would release CO2 by photosynthesis; green after being placed in the dark because the plant could not photosynthesize in the dark.
C
Green after being placed in the light because the plant would remove CO2 by photosynthesis; green after being placed in the dark because no CO2 would enter the tube since it is air tight.
D
Yellow after being placed in the light because the plant would release CO2 by photosynthesis; yellow after being placed in the dark because no CO2 could leave the tube since it is air tight.
Answer:
A. Green after being placed in the light because the plant would remove CO2 by photosynthesis; yellow after being placed in the dark because the plant would release CO2 by respiration.
Explanation:
According to this question, Bromothymol blue (BTB) is a chemical that can be used as an indicator of the pH of a solution. The presence or absence of CO2 in a solution decreases or increases the pH of the solution respectively.
- BTB appears green in a neutral pH i.e. little CO2
- BTB turns yellow in a low pH i.e. high CO2
Plants, in the presence of light, will perform photosynthesis and use CO3 as a reactant while in the dark, will perform cellular respiration and release CO2 as a waste product. Hence, in this case where an aquatic plant was placed into a test tube and covered it to keep it air tight.
- When placed under light for 24 hours, the aquatic plant will undergo photosynthesis and remove CO2 from the solution to make the solution appear GREEN due to neutral pH.
- When placed in the dark for 24 hours, the aquatic plant will undergo cellular respiration and release CO2 into the solution making the solution appear YELLOW due to low pH.
PLEASE HELP ME!!! WILL MARK BRAINLIEST!
Which term best describes the reaction that makes pyruvic acid during cellular respiration?
A) exothermic reaction
B) endothermic reaction
C) physical reaction
D) digestive reaction
Answer:
d)
Explanation:
digestive reaction
Help please thank you so much
Which part of the leaf most likely produces the most glucose
•the green part, because it contains the chlorophyll
•the white part, because it contains the chlorophyll
•the green part, because it contains carbon dioxide
•the white part, because it contains carbon dioxide
Answer:
green part that contains chlorophyll
Answer:
A. the green part, because it contains the chlorphyll
Explanation:
A biologist counts the number of zebras in a population each year, and notices an increase in the zebra population. Which describes the biologist’s actions?
Answer:
if I'm correct he is gathering information and is probably making a chart to graph the information about how much the zebra population is growing
Answer:
The correct answer is that he is observing.
Explanation:
The picture shows a 3-D model of a virus called a bacteriophage. Bacteriophages can infect In what way are the bactenophage and E. coli alike? F. They contain antibodies. che produce by tutosis. H They have idenbekl genomes, The lack membrane-bound organelles. Students, dawanywhere on this slide!
Bacteriophage and E.coli are alike in the sense that they both lack membrane-bound organelles.
What are bacteriophage?Viruses that infect bacteria are called bacteriophage. The words bacteriophage mean "bacteria eater". Bacteriophages take over the machinery of host cells to produce copies of themselves and then destroy the host cell in the process.
Bacteriophages are composed of a supercoiled nucleic acid which is surrounded by a protein capsid.
A bacteriophage adheres to the surface the susceptible bacteria and injects its genetic material. This way they occupy the genetic machinery of the host and produce several copies of their own nucleic acid and also the protein capsid to surround it.
The result is the lysis of bacterial cell and release of thousands of bacteriophage viruses which are capable of infecting more bacteria in the same manner.
Bacteriophage are acellular structures lacking any membrane bound cell organelles. E.coli is a kind of prokaryotic bacteria which also lack membrane bound organelles.
Therefore, the correct option is D.
Read more about bacteriophage, here
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when do leaves photosynthesize the most? why?
Answer:
Explanation:Because they are part of the tree that collects the most food
Which process releases energy from digested food?
A. photosynthesis
B. cellular respiration
C vitamin production
D. fertilization
Answer:
cellular respiration
Explanation:
A dichotomous key uses
Answer:
A key that helps to identify an inknown organism
At very large distances from the Sun, its corona turns into the solar wind.
True
False
Answer:
the question really didnt make sense to me so false..
Explanation:
false
Which of the following has the greatest effect
on soil's capacity to retain water?
A Soil color
B Soil particle size
C Soil texture
D Soil fragrance
The water-holding capacity of a soil is the the amount of water that a given soil can hold for plants to utilize
The soil particle size has the greatest effect on soil's capacity to retain water.
Soil particle size and organic matter (the soil's composition) are main determinants of water-holding capacity of a soil. Smaller particles (silt and clay) have a bigger surface area than larger sand particles, allowing the soil to hold more water.Learn more about the water holding capacity of soil: https://brainly.com/question/8464940
Which of the following is a reactant (input) of cellular respiration?
O energy
O carbon dioxide
O glucose
water
Answer: oxygen and glucose are reactants of cellular respiration
Explanation:
Oxygen and glucose is what is needed in order for the cellular respiration process to work
One line with red flowers and the other line with violet flowers. You carry out a monohybrid cross and find that all of the F1 offspring have violet flowers, while 97 of 400 F2 offspring have red flowers.
Explain the inheritance of flower colour in this plant species.
Answer:
See the answer below
Explanation:
The inheritance of flower color in the plant species follows the simple dominance/recessive inheritance of Mendel. The red flower trait did not show up at all at F1 only for it to show up at F2. It simply means that the red flower trait is recessive while the violet flower color is dominant.
Assuming that the allele for violet flower color is designated as R while that of red flower color is designated as r. The genotype of the violet flower would be true-breeding, RR, while that of red flower color would also be true-breeding rr:
RR x rr
F1 Rr Rr Rr Rr
phenotype ratio = all violet flower color
Rr x Rr
F2 RR Rr Rr rr
phenotype ratio = 3/4 violet flower color and 1/4 red flower color
97 red flower offspring out of 400 is approximately 1/4.
Hence, the inheritance of flower color in the plant obeys a simple dominant/recessive Mendelian law with the violet color trait dominant over the red color trait.
What are the three processes that have allowed Sexual Reproductin to make unique
oranisms? (3 points)
Answer:
Many organisms can reproduce sexually as well as asexually. Aphids, slime molds, sea anemones, some species of starfish (by fragmentation), and many plants are examples.
Explanation:
Hope this helps!! ❤️
The periods are the rows of the modern periodic table.
True or false
Answer:True
Explanation:
Which are ways of showing probability? Select 4 options.
50%
557
3/4
1 x 10
25%
7/8
Answer:
50%
3/4
25%
7/8
Explanation:
Probability must be greater than or equal to zero and less than one.
Answer:
A,C,E,F
Explanation:
just took the test
What is the probability of short beaks in the offspring of the cross show above
Answer:
8/16 or 1/2
Explanation:
This question is a dihybrid cross involving two genes, one coding for feather color and the other for beak length. The alleles for green feathers (G) and long beak (L) are dominant over the alleles for yellow feathers (g) and short beak (l).
According to this question, a male with genotype GGLl was crossed with a female with genotype Ggll. The following combination of gametes is produced by each parent:
GGLl - GL, Gl, GL, and Gl
Ggll - Gl, Gl, gl and gl
Using these gametes in a punnet square (see attached image), the following offsprings in the following proportions will be produced.
Green feathers, long beak (GGLl, GgLl) = 8/16 or 1/2
Green feathers, short beak (GGll, Ggll) = 8/16 or 1/2
Hence, the probability of short beaks (ll) in the offspring of the cross is 1/2.
Denelle pulled gently on a spring scale. The scale showed a force, but the block did not move. Why not?
Explanation:
A large force is applied to an object with a small mass
Automatic, or simple reflex, behavior is commonly referred to as
a. conditioned response.
b. spatial motivation.
c. unconditioned response.
d. operant conditioning.
What is produced in the process of photosynthesis?
O nitrogen
O Light
O water
O glucose
Answer:
Explanation: Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
So yes photosynthesis uses light and water in the process of forming sugar.
Most compounds that produce this in aqueous solution are ionic
A) Acid
B)Base
C) Both
Woodpeckers peck trees to find food and make nests. What would happen if
most of the trees are cut down?
Answer:
the wood packers wouldnt have a home to live in anymore. the effect of this means that the habitat for them and other animals is destroyed and they could start to die and become endangered species. this is my opinion
Explanation:
This is from what I have learned so far
If a new moon is on June 1st then a full moon will occur on *
June 7.
June 21.
June 14.
June 28.
Answer:
june 28
Explanation:
Which of the following non-renewable sources of energy has the smallest amount of
Fuel left on Earth?
Answer:
just so I can see the question dont mind this
Answer:
You didn’t put any options if you say the options i will answer.
Explanation:
Some organisms consist of one cell. Other organisms consist of multiple cells. Which of the following is true of cells in a multicellular organism?
All cells have the same function.
Every cell has a different function.
Different types of cells have the same function.
Different types of cells have different functions.
What is one way the body raises its temperature?