Hershey and Chase studied bacteriophages which are viruses that attack bacteria. They labeled the bacteriophage with radioactive isotopes to see where it goes when a virus attacks.
What is Hershey and Chase experiment?They discovered that nearly all the radioactivity was found in phosphorus, confirming that DNA contains genetic material, not protein.
The final experiment, also known as the Waring Blender experiment, in which Hershey and Chase demonstrated that phages only injected their DNA into host bacteria and that the DNA acted as the replicating genetic element of phages, is the Hershey-Chase experiment that is most well-known.
Hershey and Chase discovered proof that phages introduced their DNA into host bacteria in the prior experiment.
Therefore, Hershey and Chase studied bacteriophages which are viruses that attack bacteria. They labeled the bacteriophage with radioactive isotopes to see where it goes when a virus attacks.
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what is the difference between active and passive immunity? give and example of each.
Passive immunity is receiving premade short lasting antibodies. For example, antivenom.
Active immunity is the person's own immune system actively producing long lasting antibodies. For example, a vaccine.
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What is the relationship between water temperature and solubility of the gaseous solute?
Answer:
Solubilities for gaseous solutes decrease with increasing temperature, while those for most, but not all, solid solutes increase with temperature.
Explanation:
I'm sorry if its wrong
Jhich best describe the role of small intestine in digestion?
A. It temporarily stores the food
B. Secrets bile to help in digestion.
C. Helps in the absorption of nutrients from food.
D. It carries food from the mouth to the stomach.
The best option that describes the role of the small intestine in digestion is (C) it helps in the absorption of nutrients from food.
What is small intestine?The small intestine is a vital part of the digestive system, and its main role is to facilitate the absorption of nutrients from the food we eat. After food is partially digested in the stomach, it enters the small intestine, where it is broken down further by enzymes secreted by the pancreas and bile from the liver.
The walls of the small intestine are lined with small finger-like projections called villi, which greatly increase the surface area available for nutrient absorption.
As food passes through the small intestine, nutrients such as carbohydrates, proteins, and fats are absorbed through the villi and into the bloodstream, where they can be transported to the cells throughout the body to be used as energy or for other purposes.
In addition to nutrient absorption, the small intestine also plays a role in the digestion of carbohydrates and proteins, and it helps to regulate the release of digestive enzymes and hormones.
Overall, the small intestine is a crucial component of the digestive system, and its proper functioning is essential for maintaining good health and well-being.
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What does this pyramid tell us about the population?
The answer is A. The population is growing.
The pyramid tells us that population is growing continuously, the growth of population is equal in both male and female population.
What is population?Population is defined as the quantity or population of people living somewhere who are a particular social, cultural, economical, ethnic, or racial category. Making decisions can be aided by knowledge of how population parameters, such as size, regional distribution, age structure, or birth and death rates, vary over time.
The pyramid is used to show the growth in population of a country or population of the city. In the pyramid the growth of population is equal in both male and female population. The pyramid shows that the population of older generation is less than the population of younger generation peoples.
Thus, the pyramid tells us that population is growing continuously, the growth of population is equal in both male and female population.
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if a molecule is composed of several amino acids what kind of biomolecule is it
Answer: protein
Explanation: protein
Amino acids link together to form a protein. A nucleic acid is held together by the sugar-phosphate complex. A protein is held together by the carbon-carbon bonds. The diagram shows the basic structure of a biomolecule.
Answer:
It is a protein.
Explanation:
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Are chloroplasts found in animal cells ?
Answer: No
Explanation:
Chloroplasts are the food producers of the cell. The organelles are only found in plant cells and some protists such as algae. Animal cells do not have chloroplasts. Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells.
How much dna is in each nucleus of each cell
Answer: Look below =3
Explanation: That makes a total of 6 billion base pairs of DNA per cell. Because each base pair is around 0.34 nanometers long (a nanometer is one-billionth of a meter), each diploid cell therefore contains about 2 meters of DNA [(0.34 × 10-9) × (6 × 109)].
Each cell has 1 DNA. When it is mitosis, a piece of DNA breaks down into thing called chromosome.
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Please select the word from the list that best fits the definition An example of a weakness in bureaucracies.
bureaucracy
formal
organization
rationality
red tape
reasonability
stability
Answer:
Explanation:
A bureaucracy has to justify itself. It always argues that acts in the best interest of those it serves. If it was me answering the question in an essay form I would choose the first choice bureaucracy as part of my topic sentence.
If you don't believe me, the income tax act in both Canada and the United States (especially in America) is one of the most complex laws ever written. So my answer for you would be Red Tape.
It's formal. It's an organization. It's not always reasonable especially if you have to deal with it. It's stable but not in a good way.
Answer:
red tape
Explanation:
Elise is studying the electromagnetic spectrum. She knows that is shows waves in
order based upon their frequencies. Which of the following choices below, lists types
of electromagnetic waves from the lowest frequency increasing to a higher
frequency?
А
infrared, radio, microwave
B
radio, gamma, visible light
с
Gamma, visible light, X-rays
D
Visible light, X-rays, gamma
Answer:
D visible light , x-rays , gamma
The study of developmental biology shows that
A. closely related species will show similarities in embryos.
B if species have changed over time, their genes should have changed.
C closely related species will show similarities in amino acid sequences.
D distantly related species will show similarities in anatomy.
Answer:
A
Explanation:
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The study of developmental biology has been found to show that the closely related species show similarities in embryos. Thus, the correct option is A.
What is Developmental biology?Developmental biology is the branch of science which deals with the study of the process through which an organism such as an animal and a plant grows through and develops with respect to time to more evolved organisms.
Developmental biology includes the biology of regeneration, asexual reproduction of an organism, metamorphosis, and also the growth and differentiation of the stem cells which take place in the adult organisms.
Development of species accomplishes two major objectives which generates cellular diversity as well as the order within each generation, and it also ensures the continuity of life from one generation to the next generation.
Therefore, the correct option is A.
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The animal-like parasite plasmodium causes the disease
Answer:
Malaria is the answer
Explanation:
The animal-like parasite plasmodium causes diseases like malaria.
What is malaria?A parasite that frequently infects a particular species of mosquito that feeds on people can result in a serious and occasionally fatal disease known as malaria.
An obligatory parasite of insects and vertebrates, Plasmodium is a genus of unicellular eukaryotes. The parasite Plasmodium, which causes malaria, is spread via the bite of an infected mosquito.
Malaria often causes severe disease, including high fevers, shivering chills, and flu-like symptoms. Through the bites of female Anopheles mosquitoes carrying the parasites that cause malaria, people can contract this potentially fatal illness. It can be avoided and treated.
Therefore, malaria is brought on by the parasite plasmodium, which resembles an animal.
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Which of the following is the best example of diffraction?
Answer:
you voice echoing back when you shout in a canyon
Explanation:
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Samantha joins a group that cleans litter out of streams. What sort of impact is this group having on the environment?
The kind of impact this group is having on the environment is removing garbage that could pollute and kill animals, making water cleaner, and more animal life.
What are the consequences of garbage that ends up in rivers?When garbage is disposed of on public roads, it causes infrastructure problems and flooding. Upon reaching the rivers, it causes environmental imbalance, representing a great threat to aquatic life, in addition to contaminating the water used for human consumption, making it inappropriate and causing diseases.
With this information, we can conclude that the kind of impact this group is having on the environment is removing garbage that could pollute and kill animals, making water cleaner, and more animal life.
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1. What are the three top feelings that you do like to have most? Why?
Answer:
Explanatsad mad and happyion:
Answer:
the sensation of feeling free, feeling young, and feeling loved..
Explanation:
Theyre happy emotions and often overwhelming but you feel so good from it
How do you think specific traits help organisms access or utilize resources more efficiently?
Answer:
Individuals with adaptive traits, traits that give them some advantage are more likely to survive and reproduce. Over time, these advantageous traits become more common in the population. Through this process of natural selection, favorable traits are transmitted through generations.
here are some example
Adaptatio ——A trait that improves an organism's ability to survive and reproduce in an environment
Fitness——The ability of an organism to survive and reproduce
Artificial selection——Selective breeding of organisms to promote the appearance of desirable traits in offspring
Explanation:
Which of the following describes a structure that both prokaryotic and eukaryotic cells have in common?
A.) This membrane-bound organelle encloses the cell’s DNA and is where DNA replication occurs.
B.) This organelle is composed of a stack of membrane sacs where proteins are modified and stored.
C.) This organelle extracts energy stored in glucose molecules to power cell functions.
D.) This organelle is composed of protein and RNA and is used to make proteins for the cell.
Please answer this I need to know. Why am I alive and lonely
Answer:
I Feel Lonely: What To Do When You're Feeling Alonewww.psychalive.org › isolation-and-loneliness
When we are lonely, we are more likely to see things as hopeless. ... There are actions you can take to combat feeling alone and begin to have more ... Because our brains do not respond positively to seclusion, place yourself in social ... PsychAlive PsychAlive is a free, nonprofit resource created by the Glendon Association
Explanation:
eres hermosa e inteligente y mucha gente te quiere así que no dudes de ti mismo así que no te preocupes
Summarize taste considerations.
The word taste, or gustation, to give its full name, refers to what is detected by the taste cells, located on the front and back of the tongue and on the sides, back and roof of the mouth. These receptor cells, or taste buds, bind with molecules from the food or drink being consumed and send signals to the brain.
which systems are involved in throwing a ball
if the Jaguar becomes extinct is the Eco system more or less biodiverse
2. "The chick weighs 20 grams." The previous statement can be classified as an:
1. observation
2.Problem
3. Inference
Is the following statement true or false?
Environmental pressures cannot lead to adaptations
over time, only mutations can
O True
O False
Please help I forgot to study!!!
pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
Deoxyribonucleic acid (DNA) is found inside the ___________of our cells.
Answer:
nucleus
Explanation:
An organism's complete set of nuclear DNA is called its genome. Besides the DNA located in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria
why can dna be matched to the person it came from
Answer:
Since every person inherited DNA from their parents, who inherited it from their parents, and so on, a person's DNA is made up of the DNA of their ancestors. If you and another person both have the same ancestor, there's a chance that you both inherited some of the same DNA.
Explanation:
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Puffins live in the Arctic. Penguins live in the Antarctic. Suggest reasons why puffins and penguins are both similar and different
Answer:
Puffins are not actually penguins! They are birds that look similar, but are not the same species. Puffins belong to a family of birds called Alcidae, while penguins belong to the family Spheniscidae; their wings evolved to support different functions.
Why are viruses considered to be nonliving?
A)They cannot live outside a host
B)They do not respond to their environment
C)They cannot use energy
D) They have no genetic material
Answer:
it should be A if im correct.
1 Muscle spasms and locked jaw, followed by convulsions, are symptoms of:
meningitis
cerebrospinal
tetanus
2 Why is tetanus associated with injuries which occur outdoors?
the soil causes tetanus
the iron oxide rust on objects produces tetanus toxins
bacteria in the soil causes tetanus
animals cause tetanus
3 Communication for the senses and muscle coordination in the _____body is accomplished by the system.
Answer:
In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response. Wik
How much of a chromosome is copied into rna during transcription?
Answer: How many genes are copied during transcription?
The stretch of DNA transcribed into an RNA molecule is called a transcription unit and encodes at least one gene. If the gene encodes a protein, the transcription produces messenger RNA (mRNA); the mRNA, in turn, serves as a template for the protein's synthesis through translation.
Explanation: