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Biotechnology

Manipulating living organisms to produce a technical solution to a known problem.

3,003 Questions

Why do organisms with greater fitness generally leave more offspring then organisms that are less fit?

Organisms that are less fit can die before they reproduce. This is statistically more likely for such organisms. Organisms that are less fit have problems getting mates as they are passed over in greater numbers than fit organisms. Organisms that are less fit can not bring the offspring to term and provide as well for the offspring as fit organisms can. Organisms that are less fit pass on to their progeny the genetic insults that they carry, thus their offspring are less fit also. And many other reasons could be thought of here, so you think of some reasons yourself.

What is a DNA extraction kit?

kit that is used for dna extraction is called as dna extraction kit here the chemicals that are used for the extaraction are provided in the kit itself many biotech companies are selling those kits

What organelles would be crucial to the separation of chromosomes and elongation of cells undergoing cellular reproduction?

The organelles crucial for these processes are the centrioles, which help in organizing the microtubules involved in chromosome separation, and the endoplasmic reticulum and Golgi apparatus, which are involved in cell elongation and membrane biogenesis during cellular reproduction.

What is the gait of animals?

Gait refers to the pattern of movement of the limbs during locomotion. Different animals have different gaits depending on their anatomy and evolutionary adaptations. Common gaits include walking, trotting, galloping, and swimming, each with distinct patterns of limb movement.

What is the function of restriction enzymes in the process of DNA recombination?

First, a specific enzyme is needed to cut the DNA from the donor genes at a specific site. This enzyme is called a restriction enzyme.The enzyme is used to cut out a piece of DNA that contains one or more desired genes from the donor's DNA.

Next, a vector is needed to receive the donor DNA. Most frequently, a naturally occurring circular piece of bacterial DNA, called a plasmid, is used for this purpose.

Finally, an enzyme is used to "stitch" the donor DNA into the plasmid vector. This enzyme is called ligase, and it creates permanent bonds between the donor DNA and the plasmid DNA. The result is that the donor DNA is incorporated into the bacterial plasmid, forming the recombinant DNA (rDNA)

What are the dolphins interactions with nonliving things?

Dolphins may interact with nonliving things in their environment by carrying objects in their mouths, using objects for play or exploration, or even incorporating objects into their social interactions. They are known to be curious creatures that can show interest in various objects found in their habitat.

Can you preserve or freeze a bacterial isolate in a normal freezer by just growing them in a broth with glycerol?

For long-term storage, it is recommended to use a specialized cryoprotectant like glycerol and freeze the bacterial isolate at temperatures below -70°C in a dedicated freezer, such as a ultra-low temperature freezer. This method helps prevent ice crystal formation and maintain cell viability during storage, which is necessary to preserve the isolate effectively. Simply growing the bacteria in a broth with glycerol and storing in a normal freezer may not provide the necessary conditions for long-term preservation.

What vertebrate group does the shark belong to?

Sharks are a type of cartilaginous fish, that is their skeleton is made of cartilage rather than bone.

They belong to the vertebrate subphylum of chondrichthyes.

Why stacking gel used in electrophoresis?

Stacking gel is used in electrophoresis to concentrate and focus the sample of DNA, RNA, or protein at the top of the separating gel before the separation step begins. This allows for better resolution and separation of the molecules as they move through the gel, resulting in clearer and more accurate results.

What do you call a person who studies the branch of zoology dealing with fish?

A person who studies the branch of zoology dealing with fish is called an ichthyologist.

How do genes hold the recipe for all proteins needed by an organism?

Genes are segments of DNA that encode instructions for making proteins. These instructions are carried in the form of genetic code, which is transcribed into messenger RNA (mRNA) and then translated into proteins by the cellular machinery. Each gene provides the specific sequence of amino acids that make up a particular protein, allowing the organism to produce the proteins it needs for various functions.

How do you use electrophoresis to determine paternity of a baby?

Children receive half of their genetic material from each parent. There are specific sites on DNA, known as restriction sites, that are recognized by restriction enzymes. These are used to determine paternity.

Samples of DNA from the mother, father and child are taken. They are all digested ('cut') by the same restriction enzymes. These DNA fragments are then separated by gel electrophoresis (which separates fragments based on size).

The bands of the child are compared to the mother and father's. If the band is not the same as the mother's, it must have come from the father. If these do not match up, then the sample was not taken from the biological father.

Why is there a need to submerge the agarose gel into a tank of salt solution?

Submerging the agarose gel in a tank of salt solution helps to create an electrically conductive environment for electrophoresis to occur. The salt solution allows for the transfer of electric current through the gel, which is necessary for DNA or protein molecules to migrate through the gel and separate based on size or charge.

What is use of lipophilization?

Lipophilization is a technique used to make a substance more soluble in lipids or oil-based products. This process is commonly used in the pharmaceutical and cosmetic industries to improve the absorption of active ingredients into skin or tissues. Lipophilization can enhance the bioavailability and efficacy of certain compounds.

Why gel loading dye give different colouration with DNA sample?

Gel loading dye contains different components such as tracking dyes (bromophenol blue, xylene cyanol), glycerol, and buffers which can give different coloration to DNA samples due to their chemical properties and interactions. The color differences help visualize the DNA movement in the gel during electrophoresis and also indicate the loading efficiency.

What does not stimulate the opening of stomata?

Factors that do not stimulate the opening of stomata include low light intensity, high levels of carbon dioxide, and water stress. These conditions typically result in stomatal closure to prevent excessive water loss by transpiration and maintain plant water balance.

What is the purpose of hydrolysis test?

The purpose of a hydrolysis test is to determine an organism's ability to break down certain compounds such as starch or gelatin using specific enzymes. This test is commonly used in microbiology to differentiate between different species of bacteria based on their enzymatic capabilities.

What is protein marker and what is its use in electrophoresis?

A protein marker is a mixture of proteins of known sizes that is run alongside unknown samples in electrophoresis. It is used as a reference to help estimate the size of the unknown proteins based on their migration pattern in the gel. This allows researchers to determine the size of proteins in their samples and compare them to standards.

What are spurce?

A spruceis a tree of the genus Picea(a genus of about 35 species of conferous evergreen trees in the Family Pinaceae, found in the northern temperate and boreal(taiga)regions of the earth

What is the cutoff for bio-tech?

The cutoff for bio-tech can vary depending on the specific university or program. Generally, competition for bio-tech programs can be high, so it is advisable to aim for a strong academic record, relevant experience, and good test scores to increase your chances of meeting the cutoff. It's recommended to check the specific requirements of the program you are interested in to know the cutoff score.

What does a micropipette measure?

A micropipette measures and transfer small volumes of liquid in the microliter (μL) or milliliter (mL) range with high accuracy and precision. It is commonly used in biological and chemical laboratories for tasks such as measuring out reagents, samples, or standards for analysis.

The amount of gravitational force between two objects depends on their masses and the what between them?

Gravitational force depends on the masses of both objects and the distance between them. The formula is Gravitational Force = 6.67428 * 10^-11 * Mass of First Object * Mass of Second Object / Distance^2.

The DNA base sequence GGG codes for the amino acid proline. could this same base sequence code for a different amino acid?

No, in the genetic code, each three-nucleotide sequence (codon) corresponds to a specific amino acid, and it is specific and unambiguous. GGG will always encode for proline and cannot code for any other amino acid.

How do you do allele mining for fragrance and colour principles from saffron and sandalowood?

Allele mining is the finding of superior allele from the natural population. As in case of saffron, it required lots of saffron. the main basic concept for allele mining we required a lots of population. But crop like saffron and other clonally propagated crops this technology fails because there is no cross pollination and or self pollination nature. So far development of population is concerned, induced mutation is the way by which we make variability within this crops.