Answer:
An operon consists of an operator, promoter, regulator, and structural genes. The regulator gene codes for a repressor protein that binds to the operator, obstructing the promoter of the structural genes. The regulator does not have to be adjacent to other genes in the operon.
Mark me brainliestt :))
Answer:
An operon consists of an operator, promoter, regulator, and structural genes.
Explanation:
Promoter – a nucleotide sequence that enables a gene to be transcribed. The promoter is recognized by RNA polymerase, which then initiates transcription. Operator – a segment of DNA to which a repressor binds.
Hope this helps!
The Great White Shark is one of the most fearsome predators in the ocean. Why is it mainly found in colder temperate seas
Answer: The are found in colder seas because that is where its prey lives and they have a high metabolism.
Why does glucose more soluble in water comparing to benzoic acid?
Thanks :)
Answer:
because it dissolves in water very well
Explanation:
A scientist wanted to investigate whether light is required for the germination
of seeds. She filled two plant pots of the same size with equal amounts of
soil.
Pot 1 was labelled 'LIGHT and Pot 2 'DARK'. Five lettuce seeds were planted
in each of the pots. Both plants were given sufficient water.
Pot 1 was put in direct sunlight. A cardboard box was placed over Pot 2
and no light was allowed to enter.
21.1
Write down a hypothesis for the investigation.
Pleas
it reserved
Answer:
The correct hypothesis would be -
"if the light is required for seed germination of seed, then in the absence of light lettuce seed will not germinate"
Explanation:
The hypothesis is always based on a question one wanted to answer. The hypothesis is the possible explanation of a world natural problem. One needs to make his hypothesis on the basis of the research he made.
To test the hypothesis one needs to develop an experiment like here formed an experiment to test if the light is required for the germination of seeds. Thus, hypothesis would be "if the light is required for seed germination of seed, then in the absence of light lettuce seed will not germinate"
Unlike many plants, the stomata of the water lilies are found on the upper surface of the leaves. Suggest a possible reason for this adaptation.
Answer:
All plants need stomata on the surfaces of their leaves for photosynthesis. ... The stomata of water lilies are on the upper surface of their leaves, maximizing air exposure. Stomata on the underside of the leaves would be wasteful because water contact interferes with the exchange of carbon dioxide and oxygen.
mark me brainliestt :))
Answer:
Because the upper surface of the water lillies are not immersed in water.
Explanation:
Since the stomata is an opening for water to be excreted, the water lillies (which are usually found in water) need a surface which is not in contact with water so as the release the water as a metabolic waste. And since the lower surface of the water lilly's surface is immersed in water, there will be no point to excrete the water.
How can you tell from a food web which organisms will have the greatest biomass?
Answer:
How can you tell from a food web which organisms will have the greatest biomass?
The tropic level contains the greatest biomass in most ecosystems is producers. This occurs because producers get their energy from the sun, the sun is the most available resource, so there are the most at that level.
Explanation:
I hope that this answer has helped you to more thoroughly understand your question asked. If you have any further questions, please do not hesitate to ask them below.
Have a great rest of your day/night!
3.1
Suggest which leaf carries out more photosynthesis and explain why.
Explanation:
Leaf that are really green, because they contain Lots of chlorophyll in the chloroplast which is the main site for photosynthesis
A. Somalia B. Kenya C. Spain D. Nigeria
Answer:
Somalia
Explanation:
Bony Fish (bass etc.) and marine mammals (like dolphins) evolved some similar adaptations for survival in aquatic environments. However, they evolved separately and are not closely related evolutionarily. What type of evolution does this represent?
Answer:
Convergent evolution
Explanation:
Convergent evolution is a type of evolution of similar features and/or structures between organisms that are not phylogenetically related. This type of evolution is known to create analogous structures/organs that exhibit similar or the same functions but were not present in the last common ancestor of these taxa. An example of analogous structures (and therefore also of convergent evolution) are the wings of bats and of insects (e.g., butterflies). Conversely, divergent evolution is a type of evolution where species phylogenetically related, i.e., species that share a common ancestor, evolve and accumulate differences over time.
suggest why a glass tank with water was placed
Answer:
The two layers of glass provides protection from the heat of the lamp, and the water level moves down rapidly as the gas is collected.
This is the Answer for your question :3
I hope you are having a great day ❤️❤️❤️
True or False? Rainwater from storms can cause erosion as soil is washed away from hillsides.
most likley true?
im not sure but imma go with true
How is gamete different from other type of cells in a persons body?
A. It has four times the number of chromosomes
B. It has no chromosomes
C. It has twice the number of chromosomes
D. It has half the number of chromosomes
(I’ll give points + brainalist for the correct answer)
Answer:
d
Explanation:
it has half the chromosomes
If Walter waters his plants daily, then his plants will grow. Walter's plants are not growing. Thus, we can conclude Walter has not been watering his plants. Is this an example of inductive or deductive reasoning
Answer:
The correct answer is - deductive reasoning
Explanation:
Deduction reasoning is a general reasoning process that starts from a basic or general thought or idea and then a conclusion is based upon that idea. These ideas are presumed to be true and known. It is a deductive argument that based on known premises and conclusions would be specified.
Inductive reasoning provides specific cases to more general, but not necessarily true, conclusions. In the given question the ideas or premises are more specific and perceived to be true and the conclusion is specific thus, it is a deductive reasoning.
Read this passage about CFTR mutations. Then, using your knowledge of cells, select the section that describes mutations that occur at the ribosome.
The CFTR gene was first discovered in 1989, but as with many research endeavors, that was only the first step. Since that first discovery, scientists have identified 1,700 mutations of the CFTR gene. These various mutations are classified according to their specific effect on the CFTR protein. Some mutations interfere with the protein assembly process. These are called protein production mutations and result in construction of incomplete or unstable proteins. Once built, the CFTR protein folds itself into a stable three-dimensional tube shape and travels to the cell membrane where it inserts itself as a channel between the cell’s interior and its surface. Mutations that affect this part of the process are called protein processing mutations. Each channel has a gate that opens and closes in response to chemical signals. Gating mutations cause misinterpretation of those chemical signals. Conduction mutations change the inside of the tunnel, making passage through the channel slower and more difficult.
Mitosis is the process through which a cell replicates its DNA and produces two identical daughter cells. If a cell undergoing mitosis is currently in anaphase as shown in the diagram below,
The duplicated genetic information found in a parent cell's nucleus is divided into two identical daughter cells during the fourth stage of mitosis, referred to as anaphase. Thus, option B is correct.
What mitosis process through which cell replicates its DNA?The sister chromatids are able to separate because the protein “glue” holding them together is degraded. Each chromosome now exists on its own. The opposing ends of the cell are drawn to the chromosomal pairs in each pair.
The replication fork is connected to a number of proteins that aid in the The way DNA polymerase creates new strands is mostly by include nucleotides that complete each (template) strand. The S-stage of interphase is when DNA replication happens.
Therefore, Sister chromatids split from one another and are drawn to the opposite ends of the cell during anaphase.
Learn more about mitosis here:
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What is the difference between convergent plate boundaries that have plates of the same density to convergent plate boundaries with plates of different densities.
Answer: If they have the same density, they will be pushed up together creating a mountain. If the plates have different density then the one with more density overlaps the other.
Explanation:science
Word Bank: brain, instincts, interpreted, organs, reflexes, spinal cord, senses Notes
The central nervous system includes the _______ and _______.
Signals from _______ and the body's _______ are received by the brain and the spinal cord.
Once signals are processed and _______ by the central nervous system, a response is sent back to the body.
A central nervous system is also responsible for programming _______ and _______.
Answer:
The central nervous system includes the nerves and pressure points
Signals from and the body's movements are received by the brain and the spinal cord.
Once signals are processed and _______ by the central nervous system, a response is sent back to the body.
A central nervous system is also responsible for programming _______ and _______.
Explanation:
what is a strategy? and how can you apply it to every day life
Answer:
Plan. Once you have the information, you can make a plan.
Experiment. The whole point of being strategic is to always find better ways to do stuff – in less time and for maximum productivity.
Think. That should be done at every step of the process, all the time.
Track.
Explanation:
hope this helps you
As a population grows past the ecosystem's ______ the size of the population will _____ until the size of the population stabilizes at a constant level
Answer:
carrying capacity , increase
Explanation:
Up to the the population carrying capacity the the population will increase to give a perfect balance and when the population will be much then the population will decrease.
MacConkey Agar contains crystal violet which binds to gram positive bacteria, preventing them from growing. The media turns yellow in response to the production of acid when lactose is fermented. Which two terms best describe this media
Answer:
The media describes Selective and Differential.
Explanation:
Given - MacConkey Agar contains crystal violet which binds to gram positive bacteria, preventing them from growing. The media turns yellow in response to the production of acid when lactose is fermented.
To find - Which two terms best describe this media ?
Proof -
The media describes Selective and Differential.
Reason -
MacConkey is a selective and differential media.
This media is used to selectively isolate gram-negative bacteria from other bacteria and differentiate them on the basis of lactose fermentation.
Lactose fermenters turn red or pink on MacConkey agar, and non-fermenters do not change color.
Please help this is science
[tex]\sf\purple{23}[/tex] (No. of chromosome pairs) x 2 = [tex]\sf\red{46}[/tex] (No. of chromosomes) ✅
................................................MORE:-Humans have 23 pairs of chromosomes, for a total of 46 chromosomes.The two types of chromosomes are:-[tex]\sf\blue{Autosomes}[/tex] - There are 22 pairs of autosomes in humans. [tex]\sf\pink{Gonosomes\:or\:sex\:chromosomes}[/tex] - They are X and Y chromosomes. In the case of males, they have one X and one Y chromosome, while females possesses two X chromosomes...................................................[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
You have identified a new, recessively inherited trait in dogs: floppy ears. To determine if the gene for Floppy Ears is X-linked or not, you should:
Answer:
Cross a non-floppy-eared male to a floppy-eared female and observe if males offspring have the floppy ear trait
Explanation:
Mammals (e.g. dogs) have two sex chromosomes: X and Y. In the XY sex-determination system, the female gamete (i.e., the ovum) contributes to an X chromosome, while the male gamete (i.e., the sperm) contributes either an X chromosome or a Y chromosome: normal females are XX and normal males are XY. In consequence, a male always inherits its X chromosome from the mother and its Y chromosome from the father. In this case, the presence of the floppy ear trait in all males F1 offspring obtained by crossing a non-floppy-eared male to a floppy-eared female indicates that this trait is linked to the X chromosome because males inherit the floppy ear trait from the mother.
A genetic engineerer purposefully plans to apply jolts from electricity (electroporation) or high heat to bacterial cell walls during transformation. Why would she do that
Answer:
In order to increase the permeability of the cell membrane.
Explanation:
A genetic engineerer apply jolts from electricity or high heat to bacterial cell walls during transformation in order to increase the permeability of the cell membrane. Increasing permeability of the cell membrane allows the genetic engineerer to insert the desired chemicals, drugs, or DNA into the cell. If she did not increase the permeability of the cell, no or less materials pass through the membrane and there is less chance of having transformation.
Strong contrasts in texture have what effect on a monochromatic design?
Answer:
It prevents monotony
Explanation:
Strong contrasts in texture have a primary effect on monochromatic design by ensuring it’s more eye catching and not too plain.
Contrasts is a term used to describe the display of an objects dissimilar sides. A monochromatic light is known to have just one color and the strong contrasting texture however makes it possible for it to have different color differences thereby preventing monotony.
19. Which of the following sequences is correct to initiate
inspiration?
(i) The contraction of external intercostal muscles raises the ribs and sternum
(ii) Volume of thorax increases in the dorso-ventral axis
(iii) Intrapulmonary pressure decreases
(iv) Diaphragm contraction
(v) Air rushes into lungs
(vi) Volume of thorax increases in the anterior-posterior axis
Choose options :-
(a) (i), (ii), (iv), (v), (iii), (vi)
(b) (i), (ii), (iii), (iv), (vi), (v)
(c) (i), (ii), (iv), (vi), (ii), (v)
(d) (vi), (v), (i), (ii), (iii), (iv)
Answer:
Hello There!!
Explanation:
I believe the answer is (c) (i), (ii), (iv), (vi), (ii), (v).
hope this helps,have a great day!!
~Pinky~
BRAINLIEST FOR BEST ANSWER
1.Astronomers have made great strides in sending probes out to other planets and moons in our solar system. If they were to find a living creature some place other than Earth, how could DNA analysis help them better understand the organism? Explain in 1–2 sentences.(2 points)
Where does Streptococcus store its genetic information?
The DNA of most bacteria is contained in a single circular molecule, called the bacterial chromosome. The chromosome, along with several proteins and RNA molecules, forms an irregularly shaped structure called the nucleoid. This sits in the cytoplasm of the bacterial cell
Answer: Bacterial chromosome
Explanation:
What genetic and other changes might have caused these cells to escape normal cell cycle regulation these cells are hela cancer cells
Answer:
Cancer cells such as Hela cells escape to normal cell cycle by mutations that lead to the misexpression and/or overexpression of regulatory molecules (e.g., cyclins and cyclin-dependent kinases) and faulty checkpoint control of the cell cycle
Explanation:
The term cell cycle refers to the mechanism of DNA replication and cell division, which involves a series of sequential steps. The control of the cell cycle depends on 1-cyclins and cyclin-dependent kinases (CDKs) that regulate the cell cycle by a cascade of protein phosphorylations and 2- a group of checkpoint controls that monitor the completion of critical cellular events. HeLa is an immortalized cell line derived from cervical cancer cells. These cells (HeLa) contain 76 to 80 total chromosomes (instead of the 46 chromosomes that contain normal-diploid body cells), some of which are heavily mutated. These mutations can affect CDKs that control the cell cycle as well as checkpoint-control mechanisms (for example, those resulting from DNA damage), thereby cells do not enter programmed cell death (apoptosis) and proliferate uncontrollably.
while looking at a graph, you notice a period of time where the line is perfectly horizontal what is most likely taking place during this time period
Answer:
The correct answer would be - the y-axis variable is constant.
Explanation:
In a normal line graph, there are generally two variables on two different axis one is at the x-axis and the other is on the y-axis that represents the correlation between these two variables. If there is a change in the variable present on the x-axis the change on the variable on the y-axis establishes the relationship among these variables.
If there is a period on the graph where the line is completely horizontal it means the variable present on Y-axis has no change during this period or is constant. Suppose a graph is plotted between speed or velocity on the Y-axis. A perfectly horizontal line on this graph means that speed is not changing over time and remain at te same speed.
Reproductive system
Explain How does a fetus get nourishment up
until the time it is born?
Answer:
The fetus gets it's nourishment through the umbilical cord that is connected to the mother's uterus
Ava’s mother is an engineer. Ava was curious about the ways technology or engineering might be able to reduce the amount of carbon in the air. Which of the following is an engineering process that would reduce carbon in the air?
A. Increase the use of current alternative energy sources.
B. Develop cooperation with other governments.
C. Reduce the use of fossil fuels.
D. Filter carbon and store it underground.
help!!!
Answer:
reduce use of fossil fuel