Answer:
UGA is the codon in the mRNA that makes E. crassus the exception to the rule of protein synthesis, that is: insertion of gene for synthesis of two different proteins.
A bacterial cell usually contains a single loop of DNA that is located in the cytoplasm of the cell and is not surrounded by a nuclear membrane. Some bacteria have additional loops of DNA called plasmids. Plasmids can be used for genetic engineering because DNA from other organisms can be spliced into a plasmid loop. For example, scientists in the late 20th century discovered a way to insert the portion of human DNA that codes for the protein insulin into plasmid E. coli bacteria. Which statement best explains why these genetically modified bacteria have been useful to society?
A. Human diabetics are now more resistant to bacteria
B. The bacteria are resistant to human diabetics
C. The bacteria can now make their own insulin
D. the bacteria are used to produce cheap insulin.
Answer: A is the correct answer.
because for the treatment of one type of diabetes insulin should be provided but isolation of insulin and production is so costly.
but as DNA recombination has developed we can use bacterial replication system to produce insulin. they replicate very fast so large amount of insulin will be produced and then it can isolated.
but we also know that insulin of bacteria needs some modification before it can be used in human.
if want more info ask here. hope it helps.
pls answer correctly
Answer:
2nd answer bubble. or the letter B
Prokaryotic cells regulate their protein synthesis through a set of genes called
Answer:
genes turn of during this stage
Explanation:
most regulatory proteins are negative therefore they turn Gene's off
Ecologists are interested in quantifying different kinds of biodiversity. In each of the two studies outlined here, which kind of biodiversity are ecologists studying?
Ecologists establish 20 small areas, called plots, randomly scattered across a California grassland. They count the number of different plant species present in each plot.
By noting how many species appear in the plots, the ecologists are able to estimate the number of species in the entire grassland.
a. Genetic diversity
b. Functional diversity
c.Ecosystem diversity
d. Species diversity
Ecologists draw blood samples from basking shark (Cetorhinus maximus) specimens caught from a single large population in the Atlantic Ocean. From each blood sample, the ecologists isolate DNA. Comparing several DNA sequences across the individuals that were sampled, the ecologists are able to estimate the variation in DNA sequences in the entire population.
a. Genetic diversity
b. Ecosystem diversity
c. Species diversity
d. Functional diversity
One way to think about the importance of biodiversity is simply to think in terms of natural capital: the roles that genes, species, ecosystems, and ecological processes play in supporting human society and a healthy biosphere. Which of the following are benefits provided by biodiversity?
a. Controlling pests
b. Providing medically useful chemicals
c. Keeping topsoil fertile
d. Eliminating the ozone hole
Answer:
1. --> d. Species diversity
2. --> a. Genetic diversity
3. --> a. Controlling pests, b. Providing medically useful chemicals , and c. Keeping topsoil fertile
Explanation:
1) Kinds of biodiversity
Genetic diversity: Among species. Refers to genes variability among species that differentiate them and allows them to adapt to different environments. The genetic charge of one species differs from other species´ genetic charge. Species diversity: Refers to the diversity of species, which can be measured by: Species richness: Number of species in a defined unit sample, Species abundance: Describe the distribution of the species abundance.Species richness is the number of species present in a sample, within a community, habitat or microhabitat, ecosystem, landscape, region, or any well-defined spatial unit. It is simple and easy to interpret. It is the simplest and straightforward measure of biodiversity. It is just a count of species, with no need for abundance data. In some cases, this can be the cause of criticism, as it ignores information about the species-abundance distribution.
2) Ecosystem services
When talking about ecosystem services, we are referring to the benefits that ecosystems provide us. There are four types of ecosystem services:
Provision or supply:These are the products obtained by nature to be used or consumed, directly or with previous processing. Among them, we might mention food, clear fresh-water, fertile soils, geotic materials, raw materials (that can be used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, among others.
Regulation:Refers to ecological processes that improve life. Among others, we might mention climate regulation, CO² absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil fertility maintenance, waste recycling, pests/plagues control, etc.
Cultural:Refers to not the material benefits. Ecosystems also provide a recreational place or area to spend time, to learn, provides a spiritual/religious space, is a source of inspiration, it is considered to be cultural patrimony, and the source of scientific knowledge.
what evidence do you have that every cell in your body has DNA in the nucleus
Explanation: The evidence that every cell in your body has DNA in the nucleus comes from various sources, such as:
• Microscopy: Scientists can use microscopes to observe cells and their structures, including the nucleus and the chromosomes that contain DNA. They can also use special techniques to stain or label DNA with fluorescent dyes or probes that make it visible under the microscope.
• Extraction: Scientists can extract DNA from cells by breaking open the cell membrane and the nuclear envelope, and then separating the DNA from other cellular components using chemical or physical methods. They can then analyze the DNA using techniques such as gel electrophoresis, polymerase chain reaction (PCR), or sequencing.
• Comparison: Scientists can compare the DNA sequences of different cells or individuals to determine their similarities and differences. They can also use DNA fingerprinting to identify individuals based on their unique patterns of DNA fragments. These methods can show that every cell in your body has the same DNA (except for some mutations or variations), and that your DNA is different from anyone else's.
However, there are some exceptions to the rule that every cell in your body has DNA in the nucleus. For example, mature red blood cells (RBCs) do not have a nucleus or DNA at all, because they lose them during their development. Other cells, such as platelets or sieve tube elements, also lack a nucleus or DNA. Additionally, some cells have extra DNA outside the nucleus, such as in the mitochondria, which are the organelles that produce energy for the cell.
A crane has a sharp and pointed beak while the duck has a flat beak.Explain why
Answer:
The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.
On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.
The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.
veterinary science unit 5 lab questions
Answer:
where are the questions?
Explanation:
A student filled two Petri dishes with a clear cornstarch gel, then marked the letter
label the twelve pairs of cranial nerves as viewed from the base of the brain by clicking and dragging the labels to the correct location. the roman numerals are often used to reference a cranial nerve.
The Olfactory nerve (CN I), optic nerve (CN II), oculomotor nerve (CN III), trochlear nerve (CN IV), trigeminal nerve (CN V), abducens nerve (CN VI), facial nerve (CN VII), vestibulocochlear nerve (CN VIII), the glossopharyngeal nerve (CN IX), the vagus nerve (CN X), the accessory nerve (CN XI), and the hypoglossal nerve (CN XII) are the twelve pairs of cranial nerves.
Explain the human midbrain?The uppermost portion of the brainstem is known as the midbrain, and it is here that the brain and spinal cord have their most important connection. The colliculi, tegmentum, and cerebral peduncles make up the midbrain's three main structural components.
Additionally, it is essential for the regulation of motor function, pain, and the sleep-wake cycle. As a component of the main nervous system, the midbrain, also known as the mesencephalon, is present. It is situated above your brainstem and beneath your cerebral cortex.
The forward-most region of the brainstem, known as the midbrain or mesencephalon, is involved in hearing, motor control, sleep and wakefulness, alertness, arousal, and temperature regulation. It also plays a role in imagination and prescience.
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What are the correct genotype percentages?
OGG=25%, Gg=50%, gg=25%
O GG=0%, Gg=100%, gg=0%
GG= 75%, Gg=0%, gg=25%
four interview questions on inhumane farming methods could lead to ill-health
fill in the blank. all cells in the body maintain a potential difference in voltage across their membrane, called the___, in which the inside of the cell is negatively charged in comparison to the outside of the cell.
All cells in the body maintain a potential difference in voltage across their membrane, called the "membrane potential", in which the inside of the cell is negatively charged in comparison to the outside of the cell.
The cell membrane acts as a selectively permeable barrier that separates the inside of the cell from its external environment.
The membrane potential is a difference in electrical charge that exists across the cell membrane, where the inside of the cell is more negatively charged than the outside. This difference in charge is primarily maintained by the movement of ions across the cell membrane, where positively charged ions (such as sodium ions) move into the cell, and negatively charged ions (such as chloride ions) move out of the cell.
This movement of ions is often driven by concentration gradients and membrane pumps that actively transport ions against their concentration gradient. The membrane potential is important for many cellular processes, such as the generation of action potentials in nerve cells and the transport of molecules across the cell membrane.
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Helppppp. Are the moving up, down, or both ways?
The molecules in the given image are transported down the concentration gradient. Thus, the correct option is C.
There are two ways by which molecules are transported across a membrane which are active transport and passive transport.
Diffusion is a type of passive transport, that is, it does not involve the expenditure of energy.
In diffusion, the transport of molecules across the membrane occurs from a region of high concentration to a region of low concentration, that is, transport occurs down the concentration gradient.
Thus, the molecules in the picture are transported through diffusion, that is down the concentration gradient. Thu,the correct option is C.
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The iris is a plant with long, sword-like leaves. Its flowers have six petals that form a tongue and "flags." When you cut through the stem to cut flowers for a bouquet arrangement, the many vascular bundles form tough "strings" throughout the stem. From this description, it is obvious that the iris is a
Answer:
Iris is a genus of rhizomatous plants in the Iridaceae family.
Explanation:
Members of this genus are perennial herbaceous plants that grow from creeping rhizomes (rhizomatous irises) or, in drier climates, from bulbs (bulbous irises). They have long and erect flower stems, which can be simple or branched, solid or hollow and flattened or with circular cross sections.
Humans pump water out of the aquifers in the ground to use in their homes. How would this effect the land on top of the aquifer?
What will be your dependents variable( results)
Answer:
The Dependent variable is the results being measured or tested in a experiment.
Explanation:
If I do sit-ups for 2 minutes, then my heart rate will speed up.
What is the control, independent, and dependent variables of this hypothesis?
what is wave propagation?
Answer:
Wave propagation is any of the ways in which waves travel
What is the purpose of natural selection?
Answer:
The purpose of natural selection is not a conscious or intentional one, as it is not driven by a specific goal or purpose. Instead, natural selection is a fundamental process in biology that acts on heritable traits within populations over generations. It is a key mechanism of evolution.
Explanation:
The primary outcome of natural selection is the adaptation of organisms to their environment. Individuals with traits that are advantageous in a particular environment are more likely to survive, reproduce, and pass on those beneficial traits to their offspring. Conversely, individuals with traits that are disadvantageous are less likely to survive and reproduce, leading to a reduction in the frequency of those traits in the population over time.
Natural selection, therefore, acts as a filter that shapes the characteristics of populations, favoring traits that enhance an organism's survival and reproductive success in a given environment. Over many generations, this process can lead to the development of new species or the modification of existing ones, as populations accumulate adaptations that allow them to thrive in different ecological niches.
It's important to note that natural selection does not have an end goal in mind, nor does it necessarily lead to the "best" or most advanced organisms. Instead, it is a consequence of the interactions between organisms and their environment, constantly shaping and refining the traits of living beings based on their ability to survive and reproduce.
please help i’ll give brainlist and points :)
Theories and hypotheses are different. A hypothesis is when you make an educated guess with no knowledge whatsoever. A theory is when you know something and you have all the facts, all the information, all the everything. A theory is a conspiracy while a hypothesis is an educated/non-educated guess.
Explain what cells, tissues ,or organs would have to change for animals to successfully photosynthesis.
Answer:
In order for animals to successfully be able to go through photosynthesis,
Explanation:
animals would need a chloroplast since photosynthesis occurs in the chloroplast of plant cells.
What were Mendel's 4 ideas explaining the inheritance pattern he observed? Which one of them is considered the Law of Segregation?
Answer:
1) Principles of Paired Factors
2) Principle of Dominance
3) Law of Segregation or Law of Purity of Gametes (Mendel's First Law of Inheritance)
4) Law of Independent Assortment (Mendel's Second Law of Inheritance).
Explanation:
Hope this helps.
In the pillbug experiment, how many pill bugs did you need
10 pillbugs were needed in the Pillbug experiment to get good information. Thus, option (c) is the correct answer.
Pillbugs are categorized as terrestrial isopods and are in the crustacea family. Pill bugs are simple to acquire, to maintain, odourless and easy to handle. They make the perfect experimental subject.
The Pillbug experiment by McGraw Hill aims to understand how pillbugs behave in both damp and dry settings. The study is conducted by watching their behavior, taking into account how often they circle and spin.
The purpose of the Pillbug experiment is to determine if pillbugs, often known as roly-polys, prefer light or darkness. They are cold-blooded, slow-moving organisms whose surroundings regulate their body temperatures.
The complete question is:
In the Pillbug experiment, how many Pillbugs did you need to use to get good information for the experiment?
A. 100
B. 1
C. 10
D. 4
E. 5
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how are the reproductive cycles of a fungus and a pteridophyte similar
The reproductive cycles of a fungus and a pteridophyte are similar, as Both organisms produce haploid spores and exhibit diploid and haploid stages that is present in option A.
What is the significance of the fungi and pteridophytes?In pteridophytes, sexual reproduction involves the production of gametes in gametangia that fuse to form a zygote, and then through meiosis, the sporophytes are produced that develop into new individuals, while in fungi, the haploid gametes fuse.
Hence, the reproductive cycles of a fungus and a pteridophyte are similar, as Both organisms produce haploid spores and exhibit diploid and haploid stages that is present in option A.
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The question is incomplete, the most probably complete question is below,
How are the reproductive cycles of a fungus and a pteridophyte similar?
A.) Both organisms produce haploid spores and exhibit diploid and haploid stages.
B.) Both organisms form fruiting bodies that produce diploid seeds.
C.) Both organisms exhibit a diploid stage and are only able to reproduce asexually.
D.) Both organisms reproduce sexually when two haploid hyphae fuse.
A bacterium called Salmonella can cause
food poisoning.which kingdom is it in?
Answer:
monera kingdom
Explanation:
Answer:
The kingdom is Monera Kingdom
Explanation:
Energy
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U1_ Lab_Energy_Alice_Jones.doc).
Introduction
What was the purpose of the experiment?
Type your answer here:
What were the independent, dependent, and control variables in your investigation? Describe the variables for the first part of the experiment.
Type your answer here:
Experimental Methods
What tools did you use to collect your data?
Type your answer here:
Describe the procedure that you followed to collect the data for the first part of the experiment.
Type your answer here:
Data and Observations
Record your observations in the data table.
Type your answer here:
Table 1. Measurements Taken from a Simulation of a [insert mass value] kg Ball Released from Various Heights on a Ramp
Mass of ball (kg)
Drop height on-ramp (m)
Potential energy (J)
Time to travel 1.0 m (s)
Speed (m/s)
Kinetic energy (J)
0.5
1.0
1.5
2.0
2.5
3.0
Conclusions
What conclusions can you draw about how the amount of potential energy stored in a system changes as a ball is placed at varying heights on a ramp? Write an evidence-based claim.
Type your answer here:
What conclusions can you draw about how the final kinetic energy of a ball in a system changes as a ball is placed at varying heights on a ramp? Write an evidence-based claim.
Type your answer here:
Develop a model (diagram) that shows how different amounts of gravitational potential energy (GPE) are stored in the earth-ball system when the ball is raised to different heights on the ramp.
Type your answer here:
How did you use what you learned from the first part of the experiment to design a marble run?
Type your answer here:
The observations are recorded in the data table shown below:
We can conclude that the potential energy of the ball increases with an increase in height on a ramp.The final kinetic energy of the ball is greater than it was at the initial height of the ball on this ramp.What is potential energy?A sort of energy that an object possesses as a result of its height (position or location) above a surface or the planet Earth is known as potential energy.
How to calculate potential energy?
Mathematically, potential energy (P.E) can be calculated by using this formula:
P.E = mgh
Where:
m represents the mass.h represents the height.g represents acceleration due to gravity (g = 9.8 m/s²).How to calculate kinetic energy
Mathematically, kinetic energy can be calculated by using this formula:
K.E = 1/2 × mv²
Where:
K.E represents the kinetic energy.m represents the mass.v represents the speed or velocity.How to calculate speed
Mathematically, speed can be calculated by using this formula:
Speed = distance/time
Based on the calculations, we can logically deduce and conclude that the potential energy of the ball increases with an increase in height on a ramp.
Also, the final kinetic energy of the ball is greater than it was at the initial height of the ball on this ramp.
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what is force and friction
Force refers to the action of pushing an object. Moreover, friction refers to the resistance of motion in solid surfaces or liquid layers.
Force can be defined as the act of pushing an object, which is measured in Newton (symbol N).
Friction can be defined as the force that resists the motion of an object in a solid surface or liquid (fluid) layers.
There are two types of dry friction:
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Carmen has a sample of matter. It is clear and smells sour. The sample is also thick but it flows when poured. Which is the best conclusion about Carmen’s sample? It is a liquid because it is clear. It is a liquid because it flows. It is a solid because it is thick. It is a solid because it smells sour. Carmen is a bch help pls
Answer:
Option B
Explanation:
It is a liquid because it flows.
Carmen's sample of matter is clear, smells sour, thick but flows when poured. The best conclusion about Carmen's sample is that it is liquid.
There are 3 states of matter, basically:
SolidLiquidGasesSolid substances do not move or flow in any way because their molecules are fixed.
Gaseous molecules take the shape and the volume of containers
Liquid molecules only take the shape of containers.
Liquid and gases have molecules that can move and be made to flow. However, while gases will flow out automatically from opened containers, liquids cannot, unless they are poured.
Hence, since carmen's sample of matter can only be made to flow when poured, it is safe to conclude that it is a liquid.
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21) In the western United States, elk populations are at an all-time high. In some states, the state government has established elk feedgrounds, where elk gather in large numbers during the winter to eat hay provided by the state. This enables more elk to survive the winter, elevating the population even further. Some people are in favor of closing the feedgrounds. What might some of the arguments be for closing the feedgrounds? What might some be for keeping them open?
The feeding grounds should be kept open because of the fact that they help the conservation efforts though some think that it should be closed because of scarcity of land.
What are the elk?There are so many animals that are native to the arctic region that we really to intensify the conservation efforts for those species. These are the species that we see that are quite endangered and we need to protect.
One of the animal that belong to these species that are about to become thus extinct is the elk. This an animal that is know to gather around the arctic region so as to bee able to feed in the snow in the winter. This is why the government has advocated that there should be feeding grounds to conserve the populations.
This has been thought by some people to take up the and that could have been used for some other developmental purposes and this is thus a waste of land. On the other had , the conservation efforts are important so the feeding ground should be kept open.
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What is carrying capacity? (answer in a complete sentence by restating the question)
Answer:
Carrying capacity is the maximum number of individuals of a species that an environment can sustain.
Explanation:
The maximum number of organisms that a system can sustainably support is known as carrying capacity. The ability of an ecosystem to replenish the food, water, environment, or other essentials that populations need to thrive are just a few examples of the numerous variables that may affect an ecosystem's carrying capacity for a certain species.
The idea of carrying capacity connects how many species an environment can support to its resources. Ecosystems cannot consistently go above their carrying capacity. A species will exhaust its supply of food, water, or other essentials when the population density of that species surpasses the ecosystem's carrying capacity. The population will soon start to decline. A population can only increase so much before it exceeds the environment's carrying capacity. Resources won't be available at that moment to support the long-term growth of the organization.
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