Rosalind Franklin is famous for which contribution to the study of DNA?

Answers

Answer 1
double helix structure
Answer 2

Answer:

Rosalind Franklin Is famous for discover the size and shape(double helix)  of DNA.

Explanation:

Rosalind Franklin studied the x-ray diffraction in the DNA and the diffraction pattern, she captured a DNA imagen.  With this studies, she interpreted that DNA had a helical structure, DNA molecules were cylindrical and about 2 nm in diameter.

Her research gave ideas about DNA´s bonds to Watson and Crick.


Related Questions

If there is no immigration or emigration in a population and the population size increases, which statement is true?

Answers

there are no answers sorry to say 
send me the answers and i will answer them
Birth rates must exceed death rates

How many chromosomes would a cell have during metaphase i of meiosis if it has 12 chromosomes during interphase?

Answers

How many chromosomes would a cell have during metaphase i of meiosis if it has 12 chromosomes during interphase?


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What do man eating fish use for barbeques?

Answers

A man eating a fish for barbeques will need a grill and grilling tools, first and foremost. Secondly, he will need some sort of rub or sauce to put on the fish, as well as acceptable kitchenware to prep and eat the fish.

Why are c4 plants more efficient photosynthesizers than c3 plants?

Answers

C4 plants are more efficient photosynthesizers than c3 plants due to lower rate of photorespiration.

_____ is the part of the autonomic nervous system that calms the body.

Answers

The parasympathetic nervous system is the part of the autonomic nervous system that calms the body.

When chromosomes exchange genetic material during meiosis choose?

Answers

exchange of genetic material between non sister chromatic from homologous chromosomes during pro phase I of meiosis; results in new allele combinations.

(Select all that apply.) Choose the operations conducted by the "cell factory."

1.duplicate itself
2. interpret coded information
3.selective exchange
4.perform maintenance
5.decompose chemicals
6.synthesize chemicals
7.convert energy

Answers

Final answer:

The cell factory conducts operations such as duplicating itself, interpreting coded information, selective exchange, performing maintenance, decomposing chemicals, synthesizing chemicals, and converting energy, which are all essential for cell growth, division, and environmental response.

Explanation:

The 'cell factory' conducts several operations akin to a miniature industrial complex. Some of these operations include:

Duplicating itself - akin to 'copying' the factory for growth or repair.Interpret coded information - similar to 'reading' blueprints to create specific products.Selective exchange - employing a 'quality control' system for importing materials and exporting products.Perform maintenance - ensuring the machinery is functioning properly.Decompose chemicals - breaking down raw materials into usable parts.Synthesize chemicals - constructing new products from smaller components.Convert energy - like converting power sources into energy that fuels the factory's operations.

These operations are critical for the survival and proper functioning of cells, allowing them to grow, divide, and respond to their environment. They involve metabolic processes like catabolism and anabolism, where cells break down complex chemicals for energy and build complex molecules from simpler ones, respectively.

Final answer:

The cell factory performs several operations: it duplicates itself, interprets coded information, engages in selective exchange, performs maintenance tasks, decomposes and synthesizes chemicals, and converts energy. These activities are central to cellular metabolism and maintaining life.

Explanation:

Operations Conducted by the Cell Factory

The concept of a “cell factory” refers to the various complex activities and processes that occur within a cellular environment to maintain life. The operations the cell conducts include:

Duplication of itself: Cells have the capacity to reproduce by duplicating their DNA and dividing, which is a part of the cellular life cycle.

Interpreting coded information: Cells interpret genetic code from DNA to synthesize proteins, which is essential for executing various cellular functions.

Selective exchange: Cells control the import and export of molecules, thereby maintaining homeostasis through selective permeability of the cell membrane.

Performing maintenance: Cells conduct various repair and maintenance processes to sustain a healthy state and respond to stress.

Decomposition of chemicals (catabolism): Breakdown of complex molecules into simpler ones, which often releases energy.

Synthesizing chemicals (anabolism): Creation of complex molecules from simpler ones, which requires energy.

Converting energy: Cells convert energy from one form to another, as in the mitochondria where ATP is produced as usable energy for cellular processes.

These operations are fundamental for the cell to fulfill its role in the organism, and they form the basis of cellular metabolism, including other metabolic processes, cell organization and biogenesis, protein metabolism, and transport.

disturbing an area of an ecosystem where an organism lives is called

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Habitat destruction I think is what it’s called

The hypothalamic-pituitary-end organ progression of hormones is best represented by _____________.

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Corticotropin-releasing hormone -> adrenocorticotropic hormone -> cortisol.
This is the HPA axis. The hypothalamus produces corticotropin-releasing hormone that will act over the anterior pituitary that will then release the adrenocorticotropic hormone. The adrenocorticotropic hormone activates the adrenal cortex producing cortisol. Cortisol works then as a inhibitor promoting negative feedback to establish homeostasis.

A client develops a gallstone that becomes lodged in the common bile duct. An endoscopic sphincterotomy is scheduled. The client asks the nurse what will be done to prevent pain. What should the nurse reply?

Answers

In the endoscopic sphincterotomy procedure, the patient will be a given a combination of meperidine, fentanyl, midazolam, or propofol. These knockout drugs relieve anxiety, brings unconsciousness, and stops pain. Therefore, the patient will not feel anything, not even pain, during the surgery.

What would explain the change in the size of a gummy bear after it is placed in regular water?
Sugar leaves the gummy bear, so it shrinks.


Water moves in to dilute the sugar in the bear, causing it to swell.


Particles in the water rush into the bear since the sugar is sticky.

Answers

if it is hot water than than it will expand an if it is cold water than it will shrink

Answer:

The correct answer is the second statement that it will swell.

Explanation:

The majority of the sugary candies get dissolve when kept in water. However, the gummy bears get larger instead of getting dissolved in the water due to the presence of gelatin in it. When the gummy bears are kept in water, the molecules of water, that is, the solvent get within the bear by the process of osmosis.  

The molecules of water cross the semipermeable membrane and move into the region of higher solute region in order to equalize the concentration of solvent on both the sides of the candy surface.  

In the beginning, less water and more gelatin are present within the gummy bear. However, to make things equal, the molecules of water are moved within the candy where there are lesser water molecules and larger molecules of gelatin present. This gelatin presence makes the gummy bear function like a sponge by absorbing water rather than getting dissolved in it.  

What is nirvana? question 2 options: 1) cessation of suffering 2) right livelihood 3) reincarnation 4) meditation?

Answers

I'm guessing that it is 4.  Please mark Brainliest!!!
It's commonly used to describe the goal of the Buddhist path. Buddhist practice to extinguish the suffering of dukkha, so your answer is 1) Cessation of suffering.

What contains more types of plants and animals than anywhere else on earth deserts tropical rainforests?

Answers

Answer:  [B]:  "tropical rainforests" .
_____________________________________________________

A single cell begins meiosis. how many cells will there be after meiosis i, to begin meiosis ii

Answers

There are 2 cell division in meiosis, the kind of cell division that leads to 4 haploid daughter cells.
In meiosis i, referring to the first cell division, there will be 2 daughter cells, they're all diploid, with 2 full sets of chromosomes. The parent cell does duplicates its chromosomes before meiosis i.
In meiosis ii, the second division of meiosis, the 2 diploid daughter cells will divide into 4 daughter cells, but not duplicating the chromosomes. Therefore the meiosis process leads to 4 daughters cells at the end with halved number of chromosomes.

What happens to the number of species in a community as the area of that community increases?

Answers

i neeeed help on the question too

As the area of a habitat increases, the number of species within that community also increases due to factors like resource availability and diverse microhabitats. This species-area relationship is critical for understanding biodiversity and its conservation.

Studies in ecology have shown a consistent trend indicating that as the area of a habitat increases, so does the number of species present within that community. This concept is captured by the species-area relationship, which is often depicted as a curve that demonstrates that larger areas tend to sustain more species. This can be due to a variety of factors such as greater availability of resources, more diverse microhabitats, and reduced risk of extinction due to a larger population size.

The diversity of a community refers to both the number of species (species richness) and their relative abundance within a given habitat. Conversely, when habitat is lost and the area decreases, the number of species supported by that habitat also declines, as shown in species-area extinction estimates. Therefore, protecting and preserving large natural habitats is essential for maintaining biodiversity.

It is also essential to note that populations do not live in isolation and that the dynamic interactions within a community can shape its overall structure and function. This has been observed in various ecosystems, ranging from the low-diversity glaciers of Antarctica to the highly diverse tropical rainforests.

during which stage of the cell cycle does the cell rest, grow, and copy DNA and organelles?

Answers

The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells. In bacteria, which lack a cell nucleus, the cell cycle is divided into the B, C, and D periods. The B period extends from the end of cell division to the beginning of DNA replication.


When you hold a mug of hot cocoa, you feel a change in temperature. How does the skin detect this change?

Answers

Skin is full of nerves that react to changes in temperature. The nerve endings in the skin detect the change in temperature and send the information to the brain. The brain then responds by making the hands feel warmth.

The phrenic nerve is a branch from the __________.

Answers

Cervical plexus is the major branch of phrenic nerve, going through the thorax to give innervation of the diaphragm. Nerve impulses from the inspiratory centre in the brain travel down it, causing contraction of the diaphragm, so that inhalation can occur.

Final answer:

The phrenic nerve is a branch from the cervical plexus and it innervates the diaphragm, playing a vital role in the process of breathing. This nerve is connected to the spinal cord at cervical levels 3 to 5.

Explanation:

The phrenic nerve is a branch from the cervical plexus. It emerges from the spinal cord at cervical levels 3 to 5. This nerve plays a crucial role as it innervates the diaphragm, the muscle responsible for the process of ventilation. The phrenic nerve carries motor fibers that control the contractions of the diaphragm, facilitating breathing. It's worth noting that spinal cord damage below the mid-cervical level may not be fatal owing to the fact that these fibers have already left the spinal cord to enter the phrenic nerve.

There's more to this, though. The cervical plexus, which gives rise to the phrenic nerve, is composed of axons from spinal nerves C1 through C5. This comes together to form the phrenic nerve which connects to the diaphragm at the base of the thoracic cavity.

Understanding the role and origin of the phrenic nerve is vital as it highlights the interconnected nature of our nervous system and the importance of each nerve in maintaining overall body function.

Learn more about phrenic nerve here:

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A gene that only influences the expression of a trait when paired with another less active gene is called _______.

Answers

dominant gene. A dominant gene produces a dominant phenotype in individuals who have one copy of the allele, and it could come from one parent 
The answer should be recessive, because it'll tend to submit to the more dominant gene if paired together.

The central dogma of molecular biology is an explanation of the flow of genetic information within a biological system. It is a framework for understanding the transfer of genetic information between sequential information-carrying biopolymers. It traces the one-way flow from the nucleus out to the cell proper and the ribosome.

Which model BEST represents central dogma?
A) A
B) B
C) C
D) D

Answers

The Answer is B, i just had this same problem.

Explanation:

Hello!

We will answer that!

The central dogma of biology is the one that points us the way from DNA to protein. DNA, by transcription, is transformed into RNA. This RNA by translation is transformed into amino acids that then form the proteins.

In this question, where we have to find out which is the best way, we need to know what the options are.

I would like you to attach the options to help you. I hope to help you next time.

According to this species-area curve for reptiles and amphibians on a west indian archipelago, a 50% decrease in area will change the number of species living in the remaining area by

Answers

According to this species-area curve for reptiles and amphibians on a West Indian archipelago, a 50% decrease in area will change the number of species living in the remaining area by -10%.  A graph depicting the relationship between the size of a region and the biodiversity that it can support is called a Species-area curve.

Is glucose aversion a learned response, or is it inherited?

Answers

Rather than being learned, glucose aversion is inherited as an autosomal incompletely dominant trait, which appears to he controlled by a single major gene. This was discovered through a study done on cockroaches, some were fed regular bait while some were fed bait laced with glucose. Through time they began to avoid the glucose.
Final answer:

Taste aversion combines learned and inherited elements, typically after a single negative experience with a food that coincides with illness. Research by Garcia and Koelling highlights its evolutionary benefits for survival. Understanding these mechanisms aids in managing treatment-related food aversions in patients.

Explanation:

Glucose aversion, more commonly referred to as taste aversion, is an intriguing physiological response that combines both learned and inherited elements. It is a type of conditioning in which an interval of several hours may pass between the ingestion of a substance and a subsequent negative reaction, such as nausea or illness. Individuals can develop a strong aversion to a particular taste after just one encounter with a food that coincides with illness, even if the illness is not caused by the food itself.

Research in this area, most notably by Garcia and Koelling, has shown that this can be a result of an evolutionary adaptation designed to help organisms quickly avoid harmful foods, contributing to species survival through natural selection. This form of learning is powerful because it can help organisms avoid stimuli posing real dangers, even if the association between the consumed food and the negative stimulus has a long time lapse. Human behavior, however, also showcases the cultural and environmental influences on food preferences and aversions beyond just innate mechanisms.

Understanding the mechanisms behind taste aversion can be beneficial in helping individuals, such as cancer patients, manage treatment-induced nausea. The association between taste and illness in these cases can complicate the intake of nutritious foods necessary for recovery. Consequently, figuring out ways to dissociate these cues could improve patient care and outcomes.

What causes ground-level ozone?

Answers

Ground level or "bad" ozone is not emitted directly into the air, but is created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC) in the presence of sunlight.

When cells produce polymers, such as carbohydrates, lipids, or proteins, chemically bonding the monomers together results in the formation of A) a water molecule at each bonding site. B) strong hydrogen bonds between the monomers. C) a diatomic oxygen molecule at each bonding site. D) the release of carbon dioxide into the atmosphere.

Answers

ITS ANSWER WOULD BE (A)

Answer:

The answer is A : a water molecule at each bonding site.

Explanation:

Formation of polysaccharide is a condensation reaction i.e a molecule of water in produced every time two glucose molecule link together. Similarly formation of peptide bond between amino acids is also a condensation reaction. In fact because polysaccharide formation involves loss of several water molecules its easy to store condensed bulk like glycogen in animals and starch in plants compared to several monosaccharide glucose units.

a cell placed in a solution shrinks by the process of osmosis. what kind of solution is outside the cell?

Answers

the anser is what you doing 



Type of material transport that requires energy from the cell
*endocytosis
*osmosis
*facilitated diffusion
*diffusion

Answers

Isn’t it active transport????

How are the two location different in regards to food/drink religion, customs etc?

Answers

Two locations can differ in their food, religion, customers, based on their heritage. Much of the time, the history of a nation often determines where it stands today. Examples include Great Britain. A nation that always had a singular ruler and even in today's age, there is a King and Queen, something that is not often seen among other nations.

Which dosage form is formulated to mask an objectionable taste of a medication?

Answers

Need an answer choice

The gap that can be from 60nm to 100nm, seen in this junction between the nerve and the muscle is known as the

Answers

The gap that can be from 60nm to 100nm, seen in this junction between the nerve and the muscle is known as the neuromuscular junction. It is also known as the myoneural junction. This junction is a chemical synapse formed by the contact between a motor neuron and a muscle fiber.

What percent of the motor cortex of the brain is devoted to the muscles of the hand?

Answers

The motor cortex dedicates a large amount to controlling the muscles of the hand. It is likely that the percentage is around 30%, maybe more. This is followed my the muscles of the face/tongue. This is surprising considering how small these parts are compared to other muscle groups of the body, but these parts require the most intricate control.
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