Answer:
As the cell ages the volume of cytoplasm increases, enzymes that synthesize DNA move from the nucleus to the cytoplasm, and there is a gradual build up of lipofuscin. While it is unclear how this directly affects the cell, it is known that once the DNA migrates from the nucleus it is unable to synthesizes enzymes.
Explanation:
there
through which material would you expect sound waves to move fastest
Answer:
Solids
Explanation:
Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through steel than through air.
Which statement describes how basic DNA technology is used to construct recombinant DNA molecules? (10 points)
A. Scientists use a gel-filled electrical chamber during gel electrophoresis to isolate DNA fragments.
B. Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together.
C. Scientists use heat and bacterial
transformation to add novel DNA into bacterial cells.
D. Scientists use high temperatures to separate strands of DNA molecules during polymerase chain reaction.
The statement 'Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together' describes the construction of recombinant DNA molecules. This technology is called recombinant DNA.
Recombinant DNA is a genetic engineering approach by which scientists uses specific enzymes to cut and paste nucleotide (DNA) target sequences of interest.
The enzymes that recognize and cut DNA are called restriction enzymes, while enzymes that ligate DNA fragments are called ligase enzymes.
Recombinant nucleotide sequences are placed into specific vectors (e.g., a plasmid) that transport the DNA in a host cell in where this sequence is expressed as protein.
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Which cell would have a better chance for survival, one that is 1×1×1 cm or one that is 4×4×4 cm?
Answer:
which cell would have a better chance for survival that is 4*4*4cm
what is the antilog calculation for a measurement of 3.85cm
Answer:
bbbbbbbbb
Explanation:
hggggggg
Hey, I need help with these questions please:
Answer:
on the human body
Explanation:
i think.....
See attachment, please - Biology160
What aspect of a muscle cell
allows movement in the body?
A. its shape is short and blunt
B. fibers within the cell move back and forth
allowing the cell to stretch and shrink
C. there are no organelles which allows it to
move easier
Answer:
B
Explanation:
Nearly all movement in the body is the result of muscle contraction.
If you were to hike up Mount Kilimanjaro in Tanzania, you would pass through several habitats, including savanna at the base, forest on the slopes, and alpine tundra near the top. Explain how such diverse habitats can be found at one location near the equator.
Given our knowledge of ecosystems, we can confirm that the diverse habitats found at one location near the equator are due to the changes in elevation.
The effects that elevation has on the climate are what enable the diversity of habitats on a single mountain. As elevation increases, atmospheric pressure decreases. This decrease in pressure then causes a decrease in temperature.
The base of the mountain is a dry and hot habitat, while as we travel upwards towards higher elevation we see a transition in habitats into a more tropical forest style and then eventually an alpine tundra, further proving the claim that elevation lowers the temperature.
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Under dehydration circumstances in the winter, stomata may close to reduce water loss for the tree. Predict what would result from the closing of stomata. es ) A This would provide more water, increasing photosynthesis. B) This would also stop gas exchange and further limit photosynthesis. This would trap the oxygen produced in photosynthesis and kill the plant. D) This would help the needles gather more sunlight energy, increasing photosynthesis. Energy Transfer
Answer:this would also stop gas exchange and further limit photosynthesis
Explanation: did this on USA test prep and got it right
This would also stop gas exchange and further limit photosynthesis. Therefore, option B is correct.
What is the mechanism of opening and closing of stomata?The content of cell sap is reduced as a result of the conversion of the organic acids into starch. This causes water to exit hard cells, and a decline in their turgor causes the stomata to close. Stomata therefore open throughout the day and close at night.
The pH of the guard cells controls stomatal opening, according to the starch sugar interconversion theory of stomatal opening. In neutral or alkaline pH, stomata open. When the guard cells are open during the day and closed at night, they contain starch during the day.
Under dehydration circumstances in the winter, stomata may close to reduce water loss for the tree. This would also stop gas exchange and further limit photosynthesis. Therefore, option B is correct.
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Global ______ may result in the melting of glaciers, the inundation of wetlands, and the loss of many species that cannot migrate or adapt to new habitats.
Answer:
warming
Explanation:
Answer:
GLOBAL WARMING
Explanation:
global warming is warming up the earth which is causing a lot of destruction. we will all probably get flooded one day
The processes by which a molecule can be extracted and processes by which a molecule can be isolated
Answer:
Extraction is the first step to separate the desired natural products from the raw materials.
solvent extraction, distillation method, pressing and sublimation
Isolation can be achieved from polyherbal formulation but it will be rather difficult and would involve complex purification steps .
Explanation:
Have a great day!
how can you prepare a balanced ration for pigs from locally available ingredients ?
Answer: Feed your pigs that are being weaned off of their mother's milk, a special mix of food until they are about 10 to 12 weeks old. Then create a feed mix that is comprised of 76 percent corn, 12 percent skim milk powder, 6 percent soybean meal, 6 percent calcium and protein, and also 0.2 percent salt.
Explanation:
The DNA double helix is antiparallel. This means that the two strands…
Answer:
d
Explanation:
antiparallel is like one strand starts with 5' prime and ends with 3' prime and it's complimentary strand is the the opposite with 3' prime on top and 5' prime down
which involves transport proteins?
A. Osmosis
B. Diffusion
C. Active transport
D. Passive Transport
Answer:
C
Explanation:
Que is in attachment, ans with Explaination.
Answer:
The undigested, unabsorbed substances called faeces enters into the caecum of the large intestine through ileo-caecal valve, which prevents the back flow of the faecal matter. It is temporarily stored in the rectum till defaecation.
hope it helps you
btw ur intro pls
Feces generally enters into the caecum of the large intestine through the ileocaecal valve
Digestion
Most of the digested foods are absorbed in the small intestines of humans.
Undigested foods, otherwise known as feces are not absorbed but are instead moved into the caecum of the large intestine through a structure known as ileocaecal valve.
The valve prevents the backflow of the feces into the small intestine and the feces are stored in the rectum pending the time they are defecated.
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what is Baltimore classification of viruses
The Baltimore classification of viruses is a system developed by David Baltimore, allowing for the naming and grouping of RNA or DNA viruses according to their modes of replication.
ANSWER BY AN AI
Answer:
jhiuyhtfgkuguftmff
Explanation:
How does reproduction in humans compare to reproduction and other animals such as fish, birds and reptiles?
Answer:
It compares because all of them reproduce the same way with varied offspring instead of identical.
If proteins contain mutations, the proteins often do not maintain the proper
shape and are unable to perform their functions. Properly functioning
proteins are essential to maintaining healthy organisms.
Which statement describes the overall consequence of proteins containing
mutations like those described in the passage?
OA.
Wastes will build up and will be reassembled to build new proteins.
OB.
Wastes will build up, and Mallory bodies will accumulate in the
liver.
OC.
Wastes will build up in cells and will eventually be excreted from
each cell.
OD.
Wastes will build up in vital organs, and the organism will
experience disease.
The statement 'wastes will build up in vital organs, and the organism will experience disease' describes the overall consequence of proteins containing mutations. Defective proteins contain mutations.
A mutation is any alteration in the nucleotide (DNA) sequence of the genome of an organism.
A non-silent mutation can produce a change in the amino acids encoded by the nucleotide gene sequence, thereby modifying the tridimensional (3D) structure of the resulting protein.
In consequence, mutated proteins may be defective and accumulate as waste in a given organ/cell where they are expressed to perform specific functions.
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what is ecology and the functions
Answer:
It is the study of many things but mainly life process, interactions and adaptations. (The sucession development in the ecosystem)
Explanation:
Hope this helps ^^
Why don't people's cells starve from lack of glucose while they are fasting
why is it important to use weakened virus in vaccine
Answer:
It is important for you to use a weakened virus in the vaccine so once injected in your system not only is your body learning to FIGHT the virus but you will become immune to it once your body has practically gotten a taste of it. for example some anti venom antitodes use the ACTUAL venom aswell its vital in vaccines.
Explanation:
How can fat loss and cellular respiration help if you eat more than 6-9 teaspoons of sugar a day?
Answer:
For those who eat a well-balanced diet and have no metabolic disorders, excess dietary carbohydrates are converted by the liver into complex chains of glucose called glycogen. Glycogen is stored in liver and muscle cells and is a secondary source of energy to freely circulating blood glucose.
which is colder 0 C or 32 F
Answer:
0°C × 9/5) + 32 = 32°F
Explanation:
above formula
a
9. It is difficult to burn a heap of green leaves but dry leaves catch fire easily.
Explain.
Answer:
Green leaves have water wich makes them hard to burn
Explanation:
Dry leaves have no relaining water in them, whick makes them very succeptible to fire, whereas the green leaves are green and therefore still have water in them. This presence of water makes them more resistant to fire.
Write the definition of evaporation.
Wrong answer will be reported.
pls Quick!
Answer:
hope it helps
Explanation:
evaporation is the process of a liquid changing from liquid to gas and can happen in a small and large scale :)
Answer:
The changing of a liquid into vapours or gas is called evaporation. Evaporation is used to obtain a solid substance that has dissolved in water or any other liquid. The dissolved substance is left as a solid residue when all the water has evaporated.
What effect does viscosity have on blood flow?
A.) Low blood viscosity leads to slower blood flow.
B.) High blood viscosity leads to slower blood flow.
C.) Low blood viscosity increases resistance and leads to fast blood flow.
D.) High blood viscosity decreases resistance and leads to fast blood flow.
Answer:
B
Explanation:
High blood viscosity leads to slower blood flow. Therefore, option B is correct.
What is viscosity?Viscosity is a measure of a fluid's resistance to flow. It describes the internal friction between different layers of fluid as they move relative to one another. In general, fluids with high viscosity flow more slowly than fluids with low viscosity.
Viscosity can affect blood flow by altering the resistance to blood flow in blood vessels. Blood viscosity is influenced by the thickness and stickiness of blood, which is determined by the concentration of various proteins and cells in the blood.
When blood viscosity is high, the blood is thicker and flows more slowly, which can increase the resistance to blood flow in blood vessels. Therefore, option B is correct.
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1. Alpha-gamma coactivation
A. is critical for preventing contraction of an antagonist muscle when the other muscle is contracting during voluntary
movement
B. is critical for maintaining the appropriate tension on the spindle organ during contraction of extrafusal fibers.
C. is the process by which Ca2+ is released from the sarcolemma when nicotinic acetylcholine receptors are activated
at the neuromuscular junction
none of the above
The correct option is B.
Alpha gamma coactivation is critical for maintaining the appropriate tension on the spindle organ during contraction of extrafusal fiber.
Alpha‐gamma coactivation is a process that the muscle use to keep or maintains it's length. It works in a way that when the muscle contracts or relaxes , the sensory neuron send the information to the central nervous system about what happen to the muscle. This lead the intrafusal and extrafusal fibers to contract.
Alpha-gamma coactivation enhance the muscle spindles ensure its sensitivity to stretch the muscle lengths.
Therefore, Alpha gamma coactivation is critical for maintaining the appropriate tension on the spindle organ during contraction of extrafusal fiber.
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ASTRONOMY NEED HELP FASTTTT
Which law states that when an object gets smaller, the velocity of its spin increases
proportionally to its size?
Answer:
casue it's lighter
Explanation:
quseion of haramaya university
Answer:
whay
Explanation:
What are the importances of Dissacharides
Answer:
Dissacharides are very important for many things in the body. They provide fuel for the cells, which ultimately determine our quality of life since their fuel regulates blood glucose levels, erythrocyte membrane stability, erythrocyte osmotic fragility and immunological competence.
An increase in lipid oxidation is seen when glucose intake is increased through high dissacharide consumption and may be helpful to individuals with non-insulin dependent diabetes mellitus (NIDDM) type 2D who have lipid disorders such as hyperlipidemia that use dissacharide consumption change lipid levels and decrease their chances of developing atherosclerosis. This also helps people with NIDDM type 2C get rid of
Explanation: