What type of inoculating instrument is used to transfer a bacterial culture to an agar deep?
What is the procedure the describes the steps you use during an experiment?
Sugar beets plants start from tiny seeds and grow to be large plants. where does the bulk of their mass come from?
Which two statements are true for the leading strand in DNA?
It is synthesized toward the replication fork.
It is synthesized in the 3′ to 5′ direction.
It is synthesized away from the replication fork.
It is synthesized in the 5′ to 3′ direction.
Answer: The correct options are statement first and fourth that is -
It is synthesized toward the replication fork and it is synthesized in the 5′ to 3′ direction.
Leading strand in DNA is the strand of new DNA being synthesized in the same direction where the replication fork is moving. The movement of replication fork allows the access of template for the new DNA.
The DNA synthesis is continuous in the leading strand. It is synthesized in the 5' to 3' as DNA synthesis always takes place in this direction. This is because dNTP ( deoxyribonucleoside triphosphate) provides free 3' OH group where new dNTP can be added by the enzyme DNA polymerase.
The correct answer is option A and D, It is synthesized toward the replication fork and It is synthesized toward the replication fork.
Reason -
A leading stand of DNA is synthesized in the direction same as that of the replication fork movement. Since the replication moves in the 5’-3’direction, the leading strand of DNA is also synthesized in the 5’-3’direction. This strand is a continuous strand and it has no breaks in it. The nucleotides are continuously added to the 3’ end of the strand.
The extinction of a particular population from a given area (but not the entire species globally) is called ________. adaptation extinction emigration evolution extirpation
The extinction of a particular population from a given area however not the entire species globally is called extirpation. Thus, the correct option is E.
What is Extirpation?Extirpation is also known as local extinction. It describes the situation in which a species or the population of a species no longer exists within a certain geographical location or environmental condition. Unlike that of extinction, whereby a single species no longer exists anywhere in the world, extirpation means that at least one other population of the species still persists in other geographical areas in the world.
A common example of extirpation is the human-caused local extinction of the species of gray wolf which is also called as Canis lupus, from around the two-thirds of their historic natural habitat range in the world.
Therefore, the correct option is E.
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Which of the functional groups is not reactive but serves as a recognizable tag on the dna molecule and alter the expression of genes in the cells?
The methyl group is a functional group that, while not reactive, serves as an identifiable tag on the DNA molecule and alters gene expression. This process, known as methylation, is important in controlling gene expression without changing the DNA sequence.
Explanation:The functional group that's not reactive but serves as a recognizable tag on DNA molecules, altering gene expression in cells, is called a methyl group. This is characterized by a carbon atom bonded to three hydrogen atoms (CH3). Methylation, the addition of a methyl group to the DNA molecule, does not change the DNA sequence but is involved in controlling gene expression. It's a significant process in epigenetics, a field that deals with changes in gene expression without alterations in the basic DNA sequence.
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Research indicates ____ is a better predictor of health outcomes, including multiple coronary heart disease risk factors, than bmi or wc
The answer is the body fat distribution, it is because this will help an individual identify the distribution fat in his or her body and whether it is associated with conditions such as metabolic complications, obesity and whether if he or she is at risk for a certain illness.
You examine an unknown cell under the microscope and discover that the cell contains chloroplasts. what type of organism could you infer that the cell came from?
Answer:
Chloroplasts, which contain chlorophyll, are organelles found in plant cells and eukaryotic algae. These organisms, also known as autotrophs, can absorb sunlight and use it to produce their own energy through the process of photosynthesis. Therefore, the unknown cell is either from a plant or an algae.
Explanation:
Chloroplasts are an examples of organelles that are found in particular types of cells. This organelles aids this particular organism in producing food. It uses the sunlight as a source of energy to produce glucose.
The type of organism that that be inferred that the cells with chloroplasts came from is plants.
Plant cells are known to contain chloroplasts which is absent in animal cells. This chloroplasts helps plant to be able to trap sunlight in the presence of water and carbon dioxide producing food (glucose) needed by the plant organism.Learn more: https://brainly.com/question/1741612
Explain an important thing to remember as you turn the high power objective into place
When turning the high power objective of a microscope into place, one must avoid allowing the lens to touch the slide and use the fine focusing knob instead of the coarse one. It's also important to remember that the image will appear inverted due to light travel. Cleaning protocols are essential for maintaining clear views and the device's longevity.
Explanation:One crucial thing to remember when turning the high power objective into place on a microscope is to avoid letting the lens come into contact with the slide. This can be achieved by not changing the focus too rapidly or pushing an objective into a slide. Instead of using the coarse focusing knob primarily used for 4x and 10x objective lenses, it is recommended to use the fine focusing knob for small-scale movements, especially when using high power 40x to 100x objectives. This helps in accurately adjusting the focus on the specimen and reducing the risk of damaging the lenses or slide.
Microscopes use two sets of lenses—the objective lens and the eyepiece—to magnify objects. The image seen through a microscope is inverted due to the manner in which light travels through these lenses. Therefore, it's important to note that up/down and right/left movements will appear reversed when viewed through the microscope.
Lastly, cleanliness is essential for proper microscope function. Any oil from the immersion lens should be cleaned off after use, and lenses should be cleaned with appropriate lens paper for clear viewing.
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Which type of wave does not require a medium in which to travel? Sound Water Light Mechanical
The type of wave does not require a medium in which to travel is light. Thus, option C is correct.
What is wavelength?Wavelength has the distance between two identical or similar positions it means that it has been the distance between crests or trough in the adjacent cycle of the waveform.
Wavelength has been denoted by (lambda).
It is measured in meter, or centimeter, or millimeters.
Mathematical
Wavelength is equal to velocity divided by frequency,
So,
Wavelength (lambda) = Velocity/frequency.
Velocity is in meter per second.
Frequency is in 1/second.
Prism has been known as the transparent object in which if sunlight is passed then it will be split in a VIBGYOR
where V = vilot, I = indigo, B = blue, G = green, Y = Yellow, O = orange, R = red.
In this series wavelength of red is higher and violet is smaller and frequency of violet is higher and red is smaller.
Therefore, The type of wave does not require a medium in which to travel is light. Thus, option C is correct.
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Activity: cohesion of water what process exerts the pull on water molecules that is relayed from leaf to root via cohesion?
Excess glucose in the liver is stored as ______________ through a process known as __________ .
Final answer:
Excess glucose is stored in the liver as glycogen through a process called glycogenesis. If glycogen storage is full, additional glucose is converted into fatty acids and stored in adipose tissue. This process ensures a constant supply of glucose and energy for the body.
Explanation:
Excess glucose in the liver is stored as glycogen through a process known as glycogenesis. When excessive amounts of glucose and ATP (adenosine triphosphate) are present, the liver cells initiate glycogenesis, converting glucose to glycogen for storage. Glycogen acts as the primary storage form of carbohydrates and is particularly important in maintaining blood glucose levels.
During periods of high glucose availability, such as after a carbohydrate-rich meal, the liver takes up glucose and converts it into glycogen via the intermediary glucose-6-phosphate. This glycogen is then stored within the liver cells but can also be found in muscle tissues. The liver ensures a constant supply of glucose to the body by converting glycogen back to glucose when needed. This process is known as glycogenolysis.
When the glycogen storage capacity is reached, additional glucose can be converted into fatty acids through a series of reactions involving the molecule pyruvate, produced during glycolysis. These fatty acids are then stored in adipose tissue, the fat cells of the mammalian body, which are specialized for the storage of fat for later use.
________ are the changes in the cardiorespiratory system after weeks of maintaining a regular exercise program.
Describe how some cells came to have chloroplasts, according to the theory of endosymbiosis.
What is the fate of pyruvic acid in an organism that uses aerobic respiration?
a. it is reduced to lactic acid.
b. it reacts with oxaloacetate to form citrate?
Answer:
it is converted to acetyl coenzyme
Explanation:
A better known as acetyl CoA. Pyruvic acid, the product of glycolysis, can not enter the Krebbs-Cycle directly, it must loose one molecule of CO2 and become a 2 carbon compound by decarboxylation resulting in acetyl coA.
ATP is converted into ADP when energy is needed by an organism. If water were not available in the mitochondria, what would most likely happen?
Discuss why the major source of energy in an ecosystem is sunlight
Which of these organelles is assists in making proteins for all types of cells? A.) Golgi apparatus B.) ribosomes C.) smooth ER D.) lysosomes
Answer:
b.ribosomes organelles is assists in making proteins for all types of cells.
Explanation:
Ribosome: is a type of cell organelle that present within all the living cells, and it provides a site for the synthesis of protein.It has two subunits, which are known as large and small subunits and both the subunits have protein and rRNA.The ribosome is known as supreme cell Organelle because its main role is protein synthesis, which necessary for cell survival.A red bull is crossed with a white cow and all of the offspring are roan, an intermediate color that is caused by the presence of both red and white hairs. this is an example of genes that are
what holds atoms together in a molecule
A scientific idea becomes valid when it is...
A. Tested
B. Biased
C. Permanent
D. Complex
What is the scientist called that studies classification of living things?
Define the Particle accelerator
What are the different types of connective tissue? where in the body could each be found?
which condition is requiredWhich conditi for viruses to reproduce
A chart showing changes in electrical activity in the body is called a:
Final answer:
An ECG is a medical chart that depicts the electrical activity of the heart, showing crucial information on heart function and is essential for diagnosing heart conditions.
Explanation:
Understanding Electrocardiograms
A chart showing changes in electrical activity in the body is referred to as an electrocardiogram (ECG) or EKG. This medical tool records the voltages created by the heart during the depolarization and repolarization waves. When electrodes are placed on the body, they capture these voltages, which are then presented as a graph depicting the heart's electrical activity. A normal ECG tracing may include components, segments, and intervals that correlate to vital electrical events linked with heart contractions.
The standard ECG typically employs 12 leads which offer detailed information about the heart's function. The lead II potential, which measures the voltage between the right arm and the left leg, is commonly graphed and used as an indicator of heart function. This data is essential for diagnosing and understanding various heart conditions.
Another form of electrical activity monitoring is the electroencephalogram (EEG), which measures brain waves and is particularly useful in sleep disorder research. While the EEG provides a measure of brain's overall electrical activity, the ECG focuses on the heart’s electrical patterns.
The chart shows Environmental Protection Agency data for forestry practices in Minnesota in the 1980's. Clearcutting timber involves leveling all the trees in a forest in strips and allowing the forest to re-grow completely. Selective cutting involves felling only larger timber trees and allowing smaller trees to remain until they are ready to be harvested. The EPA measured soil and water loss in these areas, and also tested uncut sections of forests (controls). The EPA measured water loss (water yield) and erosion (sediment loss). What conclusion can you draw from the data recorded?
A) Evidence of clear cutting forested areas as a source of soil erosion is inclusive.
B) Both clear-cutting and selective cutting cause similar amounts of water to be lost from forested areas.
C) In 1984 and 1985, selective cutting conserved more water and saved more soil from erosion, than the uncut control forest.
D) In all five years of the study, the control resulted in the least soil erosion as well as substantially less water loss compared to the two treatment situations.
Answer:
D) In all five years of the study, the control resulted in the least soil erosion as well as substantially less water loss compared to the two treatment situations.
Based on the chart, the conclusion that can be drawn is that, in all five years of the study, the control resulted in the least soil erosion as well as substantially less water loss compared to the two treatment situations which is in option D.
What is soil erosion?The control forest (no cutting) had the least soil erosion and water loss in all five years. The sediment loss and water yield values for the control forest were consistently lower than those of both the clearcutting and selective cutting practices. This indicates that the control forest was the most effective in conserving water and preventing erosion.
Hence, based on the chart, the conclusion that can be drawn is: D) In all five years of the study, the control resulted in the least soil erosion as well as substantially less water loss compared to the two treatment situations.
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What types of rocks can become sedimentary rocks and how does that happen?
A chemical that is contained at the end of the axon whose purpose is to pass information on to another neuron is called a(n):
Which property of water is directly responsible for lowering body heat with sweat?