When we doing Strawberry Extraction, why do we need to remove the air as much as possible before seal the bag?

Answers

Answer 1

to keep it preserved and delicious

Answer 2

Answer:

Why do we need to cool the mixture? DNases or restriction enzymes that destroy DNA are present in the cell's cytoplasm. They are there to protect the cell from invasion by viruses. Once the nuclear membrane is destroyed by the soap, the DNA is now susceptible to the DNases and will quickly be degraded.

Explanation:

When you added the salt and detergent mixture to the smashed strawberries, the detergent helped lyse (pop open) the strawberry cells, releasing the DNA into solution, whereas the salt helped create an environment where the different DNA strands could gather and clump, making it easier for you to see them.


Related Questions

Despite his fear of germs, Howard Hughes neglected his own hygiene despite having those around him follow strict cleanliness practices. Hughes had these odd behaviors because __________.
A.
he believed he was unable to escape any infection
B.
he developed obsessive-compulsive disorder at an old age
C.
he thought he would be contaminated from the outside
D.
his paralysis at a young age prevented him from being self-sufficient

Answers

Answer: it’s c he thought he would be contaminated from the outside

Explanation:

I took the test

Howard Hughes neglected his own hygiene despite having those around him follow strict cleanliness practices. Hughes had these odd behaviors because he thought he would be contaminated from the outside.

What is importance of cleanliness?

Cleanliness gives rise to a good character by keeping body, mind, and soul clean and peaceful. The cleanliness only which helps to improve our personality by keeping clean externally and internally.

Thus, option "C" is correct.

To learn more about cleanliness click here;

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which part of the eye is sensitive to light?

Answers

Which part of the eye is sensitive to light?

Retina

sorry kalo salah

To ligth The sensitive of teh eye

In a sex linked trait, the recessive phenotype is most often found in males because...

Answers

Answer:

X-linked recessive diseases most often occur in males. Males have only one X chromosome. A single recessive gene on that X chromosome will cause the disease. The Y chromosome is the other half of the XY gene pair in the male.

Explanation:

Why are you learning this stuff anyways.Girl????????

Water, ice, wind, sand, and chemicals are constantly crumbling mountains, flattening hills, widening valleys, and deepening canyons. __________________ never stops

Answers

Answer:

erosion

Explanation:

Which of the following has to
occur in order for mammals to
create offspring?
A. fertilization
B. self-reproduction
C. mutation
D. self-fertilization

Answers

A. Fertilization, would be your answer

When organisms

they increase in size.

Answers

Answer:

The increase in size and changes in shape of a developing organism depend on the increase in the number and size of cells that make up the individual. Increase in cell number occurs by a precise cellular reproductive mechanism called mitosis.

Explanation:

I need help on these questions please.

Answers

You need to read the article

Help!! Please!! I'll name you brainliest!!

Answers

Explanation:

the same as the charge on the ion.+1 +2-2

5. -1

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explain how the cells, tissue, and organs within the circulatory system work together to enable it to perform its function of pumping materials around the body and removing waste products such as carbon dioxide.

Answers

Answer:

the body has levels of organization that build on each other.Cells make up tissues,tissues make up organs,and organs make up organs system.

PLS HELP ASAP!!!!!!!

Answers

Answer:

3. A and B are true

4. oxygen, photosynthesis, I think oxygen, cellular respiration

Explanation:

Hope this helps! :) I am think all of my answers are correct.

HELP NEED THIS BY TODAY!
What did Mendel study that lead him to his discovery

Answers

Answer:

A monk, Mendel discovered the basic principles of heredity through experiments in his monastery's garden. His experiments showed that the inheritance of certain traits in pea plants follows particular patterns, subsequently becoming the foundation of modern genetics and leading to the study of heredity.

Explanation:

Answer:

Mendel studied the genetics of pea plants.

Explanation:

Mendel looked at the pea plants in his monastery garden to determine genetics. He found that some plants had white flowers, while some did not, and he used that discovery to determine the genetics of the plants.

how many cells are in each phase and whats the percent of the cells

Answers

I dont know hope you found out

Can some one help???

Answers

Answer:

what is it you need

Explanation:

the rest of the world uses celsius maybe

What does the prefix pseudo mean in the word pseudoscience?

false
subjective
systematic
factual

Answers

Hii!!! I believe the answer is A. False. (:

B cells can divide to form plasma cells. Each plasma cell contains many mitochondria
and an extensive endoplasmic reticulum. Referring to the function of plasma cells in your answer, explain why these features are important adaptations.

Answers

Answer:

Explanation:

The presence of mitochondria  and an extensive endoplasmic reticulum are the features that are important for adaptations of the plasma cell because plasma cells (white blood cells) secrete immune proteins also called antibodies which only formed due to the presence of endoplasmic reticulum whose function is to formed proteins for the cell so that's why plasma cells have large sized endoplasmic reticulum.

the nose produces a sticky material called mucus, which is moistens the air and traps particles true or false

Answers

Answer:

True

Explanation:

It traps the particles and stops them from reaching your lungs and harming them.

Give advantages and disadvantages of asexual reproduction.

Answers

Answer:

Advantages and Disadvantages Of Asexual Reproduction

Advantages Of Asexual Reproduction Disadvantages Of Asexual Reproduction

The process requires less energy. Since the offspring is an exact copy of the parent, any negative mutation will also pass on to the offspring

2. What can you infer from the fact that ants make up
20 percent of the mass of all land animals combined?
a. Ants are very heavy
b. Ants live for a long time
c. Ants thrive in locations all over the world
d. Ants breed faster than any other organism on earth

Answers

D, because they are not heavy, so if they form 20 percent of the mass of all land animals combined it means that there are many ants in the world due to the fast breed

Ant breed faster than any other organism on earth, 20% of earth mass have land animals. Many ants are on the earth. Thus, option D is correct.  

What are the major features of ants ?

Ants belongs to Formicide family  which is related to so called eusocial insects like bees and termites. It is appeared in the Cretaceous period that is more than 90 million years ago.

The diversity of ants is every where except Antarctica.

The body has three parts such as  a head, a meso-some and metasoma or gaster.

Ants are mostly omnivorous but can be scavengers , predators or herbivores based on ecological context.

The reproduction in which young, queens  fly during mating time, fertilize with male, this flight is called as nuptial flight.

Then queen lay eggs, then larvae emerge to become pupae, then adults such as workers, soldiers, males or other queens are produced.

Thus, option D is correct.  

Learn more about ants, here:

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Which of the following options best depicts the process of protein synthesis?

1. protein → RNA → DNA
2. DNA → amino acid → RNA → protein
3. DNA → RNA → protein
4. RNA → DNA → RNA → protein

Answers

During translation, the genetic code in mRNA is read and used to make a protein. These two processes are summed up by the central dogma of molecular biology: DNA → RNA → Protein.

What happened at point B? Why?

Answers

Answer:

population has decreased over that period ,MAyBe

Explanation:

I don't know why

Put "Sympatric Speciation" in a sentence

Answers

Answer:

A 2008 study suggests that sympatric speciation has occurred in Tennessee cave salamanders.

Explanation:

Hope this helps

DNA fingerprint can be obtained from… (check all that apply)

Answers:

the pattern on a finger


hair with follicle attached


skin


blood


hair with no follicle attached

Answers

Answer:

Did u really delete mine so u can get credit wow you're crazy

Explanation:

Help me really quick please

Answers

Answer:

a

Explanation:

potential energy is highest at its highest point

Twenty years after his voyage to the Galapagos, what did Darwin identify as the creative force driving the evolution of species?

Answers

Darwin discovered many animals but he observed finches(a type of bird) with unique beaks.

Natural selection drives evolution

what is the relation between cell cycle disruption and cancer?
I need help!!!?

Answers

Cancer is the result of unchecked cell division caused by a breakdown of the mechanisms that regulate the cell cycle. The loss of control begins with a change in the DNA sequence of a gene that codes for one of the regulatory molecules. Faulty instructions lead to a protein that does not function as it should.
Cancer is the result of unchecked cell division caused by a breakdown of the mechanisms that regulate the cell cycle. The loss of control begins with a change in the DNA sequence of a gene that codes for one of the regulatory molecules. Faulty instructions lead to a protein that does not function as it should.

Choose which statement best describes an element.

A. Anything that takes up space

B. A pure substance that cannot be broken down into other substances by chemical means.

C. Water

D. Atom has a nucleus with neutrons and protons in it.​

Answers

Answer:

B

Explanation:

Elements are pure substances that cannot be broken down into other substances by chemical means .

3. What two paths can a cell take after it has grown?​

Answers

Answer:

Explanation:In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase.

Mitochondria nucleus atoms

Process performed by plants (producers) using the sun's energy to make their own food.
A. Conduction
B. Photosynthesis
C. Fission
D. Fusion

Answers

Answer: B.Fotosintesis

Explanation:

Answer:

option B

Explanation:

photosynthesis is the correct answer.

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Which of these contributes the most oxygen to our planet?

a. Photosynthetic fungi
b. The Amazon Rain forest
c. the National Forests
d. Phytoplankton

Answers

Answer:

D. Phytoplankton

Explanation:

The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize.

Have a wonderful day! <3

Answer:

D

Explanation:

this is because the ocean produces the most oxygen and most of that comes from plankton in the ocean

A friend says that all bacteria are harmful to people list three reasons this statement is incorrect.

Answers

-autotrophic bacteria give off oxygen (O2)
-flavor foods such as vinegar, yogurt, cheese, etc. (pasteurization)
-decomposers (bacteria)- recycle nutrients in food web
-enviromental clean-up- bacteria eat oil from oil spills
0health and medicine- bacteria break down food in your intestines/make
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