Answer:
The correct answer is - C. Chelex extraction.
Explanation:
Chelex extraction is a DNA extraction method that involves a Chelex100 chelating resin that prevents DNA degradation by traping the degradative enzymes and from potential contaminants.
In absence of this Chelex resin, a styrene polymer resin that binds metal ions that might inhibit downstream analyses. This process involves a commercially used Chelex 100 which is a styrene-divinylbenzene copolymer that has paired iminodiacetate ions, which act as chelating groups in binds metal ions.
what is the difference between matrix and shoma?
Answer: Similarly, in computer science, an array is a rectangular arrangement of numbers, a more general case; and a matrix is an array with a special mathematical meaning. In computer science, an array is a general way of arranging data.
Explanation:
what part of the project plan that tells another person about what you are doing?
a. Evaluation c. Name of
b. Objectives project
d. Materials
B. Objectives project.
#Continuar aprendiendowhat is closer to the equator 10 degrees south or 20 degrees north
Answer:
10 degree north
Explanation:
Hope it helps:)
Prevention of Foodborne Illness
Food purchased from the grocery store may contain pathogens that cause foodborne illness. To reduce the risk of illness, follow proper procedures for food preparation and storage.
Drag the appropriate items into their respective bins.
1- Divide large pots of soup into smaller batches before cooling.
2- Use a food thermometer to make sure meat has reached an appropriate internal temperature.
3- Thoroughly wash cutting boards used for cutting raw meat before slicing fresh vegetables on them.
4- Do not use color as an indicator of how well-cooked meat is.
5- Wash hands correctly before and after handling food.
6- Refrigerate leftover food within 2 hours.
7- Thaw meat on the bottom shelf of the refrigerator.
8- Wash fresh fruits and vegetables before preparing and/or eating.
Clean Combat Cross-Contamination Cook Chill
Answer:
1- Chill
2- Cook
3- Combat Cross-Contamination
4- Cook
5- Clean
6- Chill
7- Combat Cross-Contamination
8- Clean
Explanation:
A foodborne illness (also known as food poisoning) is an illness caused by eating contaminated foods by harmful microorganisms such as bacteria (e.g., Escherichia coli), viruses, parasites, and/or toxins (e.g., mycotoxins) contained in foods. Some of the most common symptoms of food poisoning include vomiting, nausea and diarrhea. Foodborne illnesses are generally caused by improper practices in the home kitchen, i.e., improper handling, preparation and food storage. Cross-contamination refers to the transfer of harmful microorganisms/toxins from one substance to another. The most common contributing factors to cross-contamination include equipment-to-food contamination, food-to-food contamination, and people-to-food contamination. The most important habit to prevent cross-contamination is washing hands and foods before eating and cooking. Moreover, cooking foods to proper temperatures can destroy microorganisms/toxins that cause foodborne illnesses. Finally, chilling (at 8˚C or below) and freezing (at -18° C) foods can also protect from food-borne illnesses as many harmful microorganisms cannot grow at these temperatures.
How does genotypic variation occur?
Answer:
Genotypic variation occurs when alleles are randomly sorted during sexual reproduction. ... Some types of organisms can increase genetic variation through reproduction. They are able to combine the genetic material of two parents, rather than copying the genetic material of a single parent.
Brainliest would be great!
This is the location at the surface where an earthquake started
O epicenter
O middle
hot spot
seismometer
Please help
Many factories release carbon dioxide directly into to atmosphere. The carbon dioxide would be considered an)
A) primary pollutant
B) placer deposit
C) invasive species
D) secondary pollutant
E) scrubber
State two (2) characteristics of enzyme.
Answer:
It has catalytic activity.
It is a protein
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The two characteristics of enzymes are :
They act like biological catalysts and speeds up the rate of reaction.Enzymes remain unchanged at the end of reaction and need helper molecules called cofactors to perform required actions ._____________________________
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Directions: Select ALL the correct answers
All living things contain carbon. Which of the following statements are true about carbon atoms?
A single molecule of some compounds can contain thousands of carbon atoms.
Each carbon atom can form single bonds with up to four other carbon atoms,
Each carbon atom can form double bonds with up to two other carbon atoms.
0 0
Carbon atoms can join together to form chains or rings,
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Submit
what is a balanced diet? find the different food groups that should be included in a balanced diet
How does coral bleaching impact humans?
Answer:
Coral bleaching and associated mortality not only have negative impacts on coral communities, but they also impact fish communities and the human communities that depend on coral reefs and associated fisheries for livelihoods and wellbeing.
what are the different ways fungal spores can be dispersed?
Answer:
Explanation:
The spores of some fungi are dispersed in water or on the surface of water. The chemical composition of the wall of these spores makes them "non-wettable" so they won't sink. The spores are carried along on the surface of the water like little boats. Water in the form of raindrops can disperse spores in a different way. While gravity is not a primary means of spore dispersal, evolutionary adaptations have been required of many fungi to overcome gravitational effects for effective spore dispersal. SPORE DISPERSAL BY WIND Dispersal of fungal spores by wind is by far the most common method for terrestrial fungi.
Describe at least two costs and two benefits of wind farms. !!!! ASAP plzz
Which statement best describes how some trees respond to decreasing temperatures and shorter days in the fall? A. They drop their leaves and go into dormancy. B. They drop their leaves and increase photosynthesis. C. They grow new leaves and increase photosynthesis. D. They grow new leaves and go into dormancy.
Two gametes, each carrying a mutant recessive allele for a different gene/enzyme in the adenine biosynthetic pathway, come together to form a diploid embryo. The individual derived from this embryo will display a:______.
a. lethal phenotype in media lacking adenine supplementation.
b. wild-type phenotype, capable of synthesizing adenine.
c. a weak adenine requirement for survival (intermediate phenotype).
d. a profound defect in adenine synthesis as two enzymes are missing.
e embryonic lethality.
f. co-dominant recessive mutant, incapable of synthesizing adenine synthetic lethal interaction.
Answer:
vvvvvvvvvvvvvvv
Explanation:
Which of the following is a accurate depiction of primary ecological succession?
Answer:
This question lacks options, however, primary succession will be explained for detailed comprehension.
Explanation:
Ecological succession is the gradual series of changes that occurs in an ecosystem, charging it's structure and composition over time. It is of two types namely; primary and secondary successions.
Primary succession is characterized by the "LACK OF NO SOIL". It begins on a barren piece of land e.g rocks, with no form of life previously known to colonize the area. In primary succession, the barren land is first colonized by organisms such as lichens etc., which are collectively regarded to as PIONEER SPECIES.
Which would be considered an ecosystem?
A
a colony of bacteria
B
biotic factors in a forest
с
populations of zebras and lions
D
living and nonliving things in a pond
Answer:
A colony of ants is a species, C is only animals and only the biotic factors it is D living and nonliving things in a pond
Explanation:
Why mouse is called direct input device ?
Answer:
because you insert it manually and directly with a cable.
pls mark as brainliest lol
Answer:
A mouse is called direct input device because it is moved by the human/robot user, inputting the signal on where the cursor should go and what actions the cursor does.It also allows you to input and send data to the computer.
.
Which property refers to how energy, such as heat and electricity, can travel through a material?
Answer:
Conductivity
Explanation:
The ability of electrical energy to flow through materials is called conduction, so the property is the conductivity property
What are the characteristics of kingdom eubacteria?
Prokaryotic
Heterotrophic
Unicellular
Multicellular
Found in extreme Environments
Eukaryotic
Found in common environments
Autotrophic
unicellular
Explanation:
eubacteria is not mutiple in number
1 point
Interpret the graph above. At which of the following times was Earth's
temperature most similar to what it is today? *
100 million years ago
250 million years ago
310 million years ago
400 million years ago
Answer:
310 million years ago
Explanation:
you can see that the temperature 310 years ago is similar to what it is today
which of the following is a good effect soil erosion
A. clogging of irrigation
B. decrease of food production
C. deposition of mine tailings
D. shaping of landforms
Answer:
i think shaping of landform is the good effect of soil erosion
3.what colour does the clear alcohol become once the leaf is boiled in it? Explain why?
Answer:
We boil the leaf in alcohol when we are testing it for starch because to remove the green pigment chlorophyll present in it. For the starch test, we need to observe the colour change from brown to blue when iodine is put on the leaf.When looking at the Pheasants and their relatives, what was true of the bird species that were more influenced by sexual selection?
Answer:
sinning
Explanation:
What are the potential hazards relating to materials handling injuries?
Which interaction involves only one of Earth's spheres?
Answer:
Energy stored in plants is transferred to humans and animals that eat them. Biosphere is a sphere on earth where living organism forms a biotic community.
Explanation:
How do lungs help cells in the body meet their needs?
A. They produce oxygen for the body.
B. They bring oxygen from air into the body.
O c. They transform oxygen from the body into carbon dioxide.
D. They release oxygen fromod and send it through the body.
An ecosystem has been interrupted by an invasive species. A new grass eating lizard lives in the same ecosystem as a grass eating rabbit. Hawks eat both lizards and rabbits. What would happen to the grass and hawk populations immediately? Why?
There would be more hawks appearing because there is more food (both lizards and rabbits) and grass would lessen because there is another source feeding off of it.
I hope this helped ^^
Answer:
the grass population would decrease and hawk population would increase
Explanation:
brown eye color is dominate; blue is recessive.if a brown-eyed man marries a blue-eyed woman and they have a brown eyed boy and a blue eyed girl, what can we conclude about the parents?
Answer: first baby - dads dominant brown colored eyes
second baby - both of moms genes becuase you need two recessive genes to have a recessive trait
Explanation: i hope that makes sense, have a great day!!
Question 16 Multiple Choice Worth 2 points)
(06.04 MC)
A surgeon extracts developing sperm cells from a male. In what order will he cut through the tissues of the male to access the developing sperm?
Testis; vas deferens; scrotum
O Testis; scrotum; vas deferens
O Scrotum; testis, seminiferous tubule
O Scrotum, seminiferous tubule; testis
Question 17(Multiple Choice Worth 2 points)
(06.04 MC)