Bacterial contamination can be removed from cell culture using several methods. These include proper aseptic technique, filtration, antibiotics, and centrifugation.
The first and most important method for removing bacterial contamination is ensuring proper aseptic technique. This includes using sterile equipment and materials, wearing gloves and masks, and cleaning all surfaces and equipment with a disinfectant. Additionally, it is important to use aseptic techniques when transferring media and culturing cells. Following these basic techniques can help to reduce the risk of bacterial contamination from the start.
In the event of contamination, several other methods can be used to remove bacteria from culture. One of the most common methods is filtration. This involves passing the culture through a filter to remove the bacteria. This method is effective but may be time-consuming, depending on the size of the culture and the particle size of the bacteria.
Another method for removing bacteria from cell culture is antibiotics. Antibiotics can be added directly to the culture to kill the bacteria, though this may not be ideal in some cases due to the potential to affect the cells. Additionally, antibiotics may not be effective against certain types of bacteria. Therefore, it is important to select an appropriate antibiotic based on the type of bacteria present.
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If two-hybrid Ff rabbits mate, what will the offspring look like?
Answer:
25% FF - homogenous dominant
25% ff - homogeneous recessive
50% Ff - heterogenous
Explanation:
When two-hybrid Ff rabbits mate, then the offspring look like
25% FF - homogenous dominant25% ff - homogeneous recessive50% Ff - heterogenous.What is Mating?For the goal of sexual reproduction, opposite-sex or hermaphrodite organisms team together during mating. Two gametes join together during fertilisation. When two sexually reproducing creatures join their sex organs, internal fertilizations and insemination take place.
Punnett Square situations with two hybrid parents marrying are frequent. The heterozygous hybrid parents possess a single allele (A and a, Dominant and Recessive). There are four genotype outcomes that can happen if two hybrid parents mate.
Thus, when two-hybrid Ff rabbits mate, then the offspring look like
25% FF - homogenous dominant25% ff - homogeneous recessive50% Ff - heterogenous.Learn more about Mating, here:
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A cell is placed into a solution and is left sitting for 24 hours. When you come back you notice the cell is exactly the same size it was beforehand. Which type of solution was the cell sitting in? Explain
Answer:
Isotonic Solution
Explanation:
There are commonly three types of solutions:
Hypertonic solution = the concentration of solute is greater than in the cellHypotonic solution = the concentration of solute is less than in the cellIsotonic solution= the concentration of solution and cell is same.So, if the cell was in any other solution, it would have been burst or it would shrink. but nothing changed because it was in a solution where outside environment is similar to the internal environment
what are the energy-storing compounds in photosynthesis?
Answer:
Hi, Plants store their energy in the form of starch, which is a complex carbohydrate that can be broken down into a simple carbohydrate (glucose) for the plant to use for energy. Plant cells store starch in storage organelles as all cells do. (vacuoles).
Answer:
Photosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules (e.g., sugars). Photosynthesis powers almost all trophic chains and food webs on the Earth.
My bird recently flew into a window and in bleeding between his nostrils. The wound keeps bleeding, and we can't afford a Vet visit right now, what should I do?
Answer:
he finna die
Explanation:
Answer:
OMG are the wings okay
wrap the bird up in an bandage cloth if you have any!
Explanation:
The plant helps with which part of the nitrogen circle?
In pea plants, peas can be green or yellow in color. Assume that green peas are dominant to yellow peas. Is it possible for two plants with green peas to produce any offspring with yellow peas?
vocabulary words to use in response: dominant allele, recessive allele, , heterozygous, genotype, phenotype
Answer:
No.
Explanation:
Turns out they have yellow peas because the yellow version, Y, is dominant over the recessive green version, y. Y always wins out over y: When a pea plant makes seeds, only one of its two copies of the color gene goes into the seed. So if you have two green pea plants, each can only pass a green version.
Answer:
No.
Explanation:
Turns out they have yellow peas because the yellow version, Y, is dominant over the recessive green version, y. Y always wins out over y: When a pea plant makes seeds, only one of its two copies of the color gene goes into the seed. So if you have two green pea plants, each can only pass a green version.
The diversity of dogs today can be attributed to selective breeding,
O True
O False
Mendel found out everything about genetics and we have not learned anything new about genetics in the last 160+ years. true or false?
Answer:
false
Explanation:
there has been many advancements in genetics ever since Mendel's discoveries
some consumers such as many flying insects need large amounts of energy to grow and move from one place to another. how do consumers get energy to function?
What do you think accounts for the higher risk of earthquakes in Los Angeles than in Chicago?
When is extinction of a species most likely to occur?
A. when environmental conditions change and the adaptive traits of the species favor the survival and reproduction of some of it's members
B. when environmental conditions remain the same and the proportion of individuals within the species that lack adaptive traits increases
C. when environmental conditions change and the members of the species lack adaptive traits to survive and reproduce
D. when environmental conditions remain the same and the proportion of individuals within the species that possess adaptive traits increases
Please help ASAP EXTRA POINTS AND WILL-MARK BRAINLIEST!!!
How could the Galapagos finches have evolved into 13 different species ? (2-3 sentences)
Please help thanks
Answer:
they adapted to their environment, some have sharper beaks which are used to crack nuts, when they were introduced to the new environment they evolve to the new surroundings in order to survive. therefore, seeing as though there is 13 different species, the Galapagos islands have many different food sources, and ecosystems.
Explanation:
4 1 Your friend, Luis, recently told you that bacteria started MAGICALLY growing on the inside of his shoes causing his feet to smell. You know this is not true based on which part of the cell theory? O cells are the basic units of life all living things are made of cells very few cells reproduce all cells come from pre-existing cells 5 To enter or leave a cell, molecules, like water, must pass through the
Answer:
You have to finish putting the question
Explanation:
How do animals help recycle carbon atoms?
Answer:
animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon. The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale
Answer:
In animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon. The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale.
Explanation:
Why are silent mutations possible for some of the amino acids?
Answer:
That's possible because proteins are encoded by "triplets" of nucleotides, each responsible for adding a particular amino acid to the protein chain. A change in one nucleotide, however, doesn't always change the triplet's meaning; the mutated triplet may still add the same amino acid.
Explanation:
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4. The suns energy causes water to change from liquid to gas during the process of ..
A. precipitation
B. condensation
O C. evaporation
O D. Water cycle
PLEASE HELP NO LINKS PLEASE
Which term best completes the diagram below?
nucleus
cell
molecule
O muscle
Due to sun damage, a skin cell acquired a mutation in DNA sequence in a gene essential for cell survival. This mutation, however, was not passed on to the offspring of the organism. Which explanation best accounts for this observation?
Answer:
Only mutations in reproductive cells can be passed from parents to offspring.
Explanation:
Some animals hunt by _________, or sneaking up on, their prey. M is the second letter.
Answer:
Ambush
Explanation:
Ambush is a sneaky attack/Surprise attack
What is the main body system affected from sickle cell anemia?
Answer choices:
Digestive System
Nervous system
Circulatory System
Respiratory system
Muscular System
Skeletal System
Answer:
Circulatory system
Explanation:
It flows through your blood and it can affect your veins,arteries,heart,ect
how is modern earth different from earth over four billion years ago?
Cells: Question 10
Which of these structures would be classified as an organ?
Select one:
A)A ciliated cell within the respiratory tract
B)Multiple types of tissues that work together to filter wastes from the blood
C)A liquid that contains proteins, salts, and water
D)A group of square-shaped cells surrounding a tubule
Answer:
The answer would be B.
Explanation:
An organ is a group of cells that form tissue which then make up an otgan. A group of Tissues is an Organ and tgat orgab serves a specific function in the body. The group of tissues is the organ, and the filter of waste from the blood is the function.
why do you think farmers are not using cover cross?
What would happen within a few months if all de composers on earth disappeared overnight I’ll leave a picture here
When yellow guinea pigs (Y) are crossed with white guinea pigs (W), cream-colored offspring (YW) are produced. Can a pet-store owner mate two cream-colored guinea pigs and get a white guinea pig?
Answer:
It is possible.
(04.05 MC)
Which claim best supports the cycling of carbon through the spheres of Earth?
Answer:
Burning fossil fuels adds the necessary amount of carbon in the atmosphere for cellular respiration to take place
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Describe an experiment used to prove that amino acids and sucrose go up and down the phloem.
Answer:
By using carbon-14 in the experiment in order to prove the statement.
Explanation:
Translocation occurs in the plant body in order to transport amino acids and sucrose from one part to another by the phloem tissues. In order to prove this, we have to incorporate radioactive element in the amino acid or sucrose which shows us that through which layer the amino acids and sucrose move in the plant body. For this purpose, carbon-14 can be used to trace the path of the translocation of amino acids and sucrose. Through this experiment we will find out that phloem layer is the path used by the plant to move amino acids and sucrose from one part to another.
is it wrong for parents to give female hormone pills to there little sons, without there consent?
Please help will give brainliest
Answer:
a. domain
Explanation:
I am assuming that you are looking for the largest system, in that case it is domain.
From this list, it goes
Domain>kingdom>phylum>taxonomy
hope this helps :3
CO
Ecosystem productivity is principally limited by
a. sunlight and nutrient availability
b. water and nutrient availability
the availability of time and nutrients
d. none of the above
C.
Please select the best answer from the choices provided
A
B
Answer:
a. sunlight and nutrients availability.
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Answer:
A
Explanation: