How are the two sugar-phosphate strands of a DNA molecule joined together

Answers

Answer 1
The two sugar-phosphate strands of a DNA molecule are held together by hydrogen bonding between the nitrogenous bases, which are paired in the interior of the helix.

Related Questions

A primary healthcare provider prescribes a urinalysis for a client with an indwelling catheter. to ensure that an appropriate specimen is obtained, the nurse would obtain the specimen from which site?

Answers

The nurse should obtain the specimen from the catheter.

One of the tests from urinalysis that frequently got contaminated is about infection. The area near the orificium of uretra is near the skin, so there will be microbes around it that can contaminate the sample. The contaminated sample will give a false positive and the result will show the urine are infected.
Taking the specimen from catheter will prevent that contamination, thus giving a better sample.

Answer:

The nurse should obtain the specimen from the catheter.

Explanation:

A disorder characterized by hemorrhage diathesis is one in which insignificant injury leads to unusual bleeding.

Answers

Hemorrhagic diatheses is a disorder characterized by hemorrhage diathesis is one in which insignificant injury leads to unusual bleeding. This is also known as bleeding diathesis in which is an unusual bleeding due to hypocoagulability which is also caused by coagulopathy. 

The process of removing and fixing orphan records is often called ____.

Answers

Orphan records are records whose foreign key value does not refer to a primary key value. Orphan records are very common in database relationships. The process used to remove and fix orphan records is called scrubbing the database.

The process of removing and fixing orphan records is commonly called Referential Integrity Checking or cleanup. These are records that lack corresponding entries in the related table. Maintaining referential integrity ensures data reliability.

The process of removing and fixing orphan records in a database is often called Referential Integrity Checking or cleanup. Orphan records are those records that don't have corresponding records in the related table. For example, in a library database, a record of a book that doesn't have a matching author record could be considered an 'orphan'. This can occur due to deletion, software failure, or other issues. Data integrity is crucial to maintaining correct and reliable data in a database. The process of referential integrity checking ensures that there are no orphan records.

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Vikings colonized new areas while exploring and raiding the waters of which ocean?

Answers

This would be the Atlantic Ocean, mainly the northern reaches of it toward the Arctic. Vikings have their ancestry in the Norse countries and areas of northern Europe, which lies on the outskirts and seas bordering the Atlantic. During their travels, they would explore these waters and find new lands (one being the New World later discovered by Spanish, Portuguese, and English explorers some 500 years in the future).

The surgical repair of a vessel is _____.

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I believe it’s angioplasty. 95% sure. Good luck

Depolarization of hair cells in the utricle occurs when ________.

Answers

hair cells bend toward the kinocilium, so yeah, have fun

Which group of minerals are the most abundant in the earth's crust?

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More than 90% on the crust is composed of silicate minerals. Most abundant silicates are feldspars (plagioclase (39%) and alkali feldspar (12%)). Other common silicate minerals are quartz (12%) pyroxenes (11%), amphiboles (5%), micas (5%), and clay minerals (5%).

Oxygen, silicon, iron and aluminum are the most abundant elements in the Earth's crust accounting for 88.1% of its mass.

What is Earth crust?

The crust is defined as the outermost layer of the earth's surface and is made up of a large variety of igneous, metamorphic and sedimentary rocks. The crust lies beneath the mantle, while the upper part of the mantle is composed mostly of peridotite, a rock denser than the rocks common in the upper crust.

There are tectonic plates in this part of the Earth that provide a platform to all the land on Earth that was formed about 4.6 billion years ago, just after the Earth's crust solidified the planet. This part consists of several minerals such as Oxygen, silicon, iron and aluminum.

Thus, Oxygen, silicon, iron and aluminum are the most abundant elements in the Earth's crust accounting for 88.1% of its mass.

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"where does the bond form that binds one strand of dna to its other strand"

Answers

The bonds form between the bases

Describe what happens to chromosomes before mitosis.

Answers

it must go through interphase to prepare itself

It’s goes through interphase

In a watery environment polar amino acids want to have contact with

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Polar amino acids tend to be hydrophilic, meaning that they bond to water. These are those that establish hydrogen bonds to water. They are considered polar because they have a R group that's hydrophilic. Because of this characteristic, in a protein they tend to a be a at the surface maintaining contact with the surrounding solutions. The most common polar amino acids are: arginine, lysine, glutamic acid, and aspartic acid.

What is the main piece of legislation governing how water quality is regulated in the Everglades? Clean Water Act Dirty Water Act Clean Up Your Act Everglades Water Quality Act Question 11 (Essay Worth 5 points)

Answers

I believe it is the Clean Water Act

Answer:

Option A , Clean water act

Explanation:

The clean water act is the regulatory document that formulate the basic structure of controlling the discharge of waste and pollutant into the water. This act came into being in 1948 and was further amended in 1972. Under this act standards were set for wastewater discharge from industries and surface water.  

Also the discharge of waste into navigable water without prior permission was made unlawful

hence, option A is correct.

What is the function associated with the indicated neural activity?

Answers

This activity creates graded potentials in the plasma membrane of a postsynaptic cell. The graded potentials are changes in the membrane potential. These come in all sizes. A postsynaptic cell is a membrane that gets a signal from the presynaptic cell.

statistics about the climate in a tundra ecosystem were collected for 30 years. which hypothesis about a population of caribou could be made based on the climate data collected?


a. caribou calf survival is directly related to annual rainfall amounts.

b. an outbreak of disease in 1984 killed 35% of the caribou population.

c. caribou remain with the same mate throughout their lifetime.

d. mortality of caribou from hunters was less than 5%.

Answers

A hypothesis is an expectation of what you are going to investigate. So B and D are canceled C has nothing to do with climate So the only remaining answer is A

Answer: a. Caribou calf survival is directly related to annual rainfall amounts.

Explanation:

A hypothesis can be define as the presupposed explanation of the cause of natural event or natural phenomena. It exhibit some kind of evidences and facts that are required to be tested on the basis of suitable scientific methodology.

Among the given options, a. Caribou calf survival is directly related to annual rainfall amounts. is the correct option because here the population of the surviving Caribou calf can be compared with the recorded or measured amounts of annual rainfall. Hence, the information is testable by scientific procedures therefore, it is an example of hypothesis.

The process in which sperm and egg cells join is called ____________________.

Answers

The process is called Fertilization

Final answer:

Fertilization is the process in which egg and sperm cells unite to form a zygote. This is facilitated by acrosomal reactions that allow the fusion of egg and sperm membranes and transfer of the sperm nucleus into the ovum.

Explanation:

The process in which sperm and egg cells join is called fertilization. This involves the fusion of gametes, an egg and a sperm, to form a zygote. In mammals, a layer called the zona pellucida protects the egg. A series of events known as acrosomal reactions take place when a sperm binds to this layer, allowing the sperm plasma membrane to fuse with the egg plasma membrane. Thus, the sperm nucleus is able to transfer into the ovum. The nuclear membranes of the egg and sperm break down, and their two haploid nuclei fuse to form a diploid nucleus or genome.

Fertilization is the fusion of the gametes, a sperm and an egg, to form a zygote. It involves a series of biochemical events, including the acrosomal reactions, which allow the sperm plasma membrane to fuse with the egg plasma membrane and transfer the sperm nucleus into the ovum.

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Two students are investigating the relationship between net force and acceleration on an object. They tie a string to a 1-kg block resting on a horizontal table. The string is run over a pulley and attached to a 100-gram weight hanging above the floor. The acceleration of the block is then calculated as the block falls to the floor.

Which statement would best describe the greatest source of error in this investigation and suggest a reasonable method to reduce this error?
A) The block would have friction and a dynamic cart could be used.
B) The block on the table has too much mass and should be increased
C) The falling mass is too small to accelerate the block and should be increased.
D) A pulley has friction and the hanging mass should be replace with a spring scale.r

Answers

The correct answer is actually A) The block would have friction and a dynamic cart could be used.

I have a screenshot attached.

Hope that helps!

Good luck! :)

In healthy, physically fit women, _______ exercise is related to _____ birth weight.

Answers

in healthy, physically fit women, regular moderate exercise is related to increased birth weight.

What maternal physiological changes can be observed initially during the postpartum period?

Answers

Physiological changes during pregnancy aid the adaptation of the cardiovascular system to the grown metabolic needs of the mother which enables adequate delivery of oxygenated blood to peripheral tissues and the fetus. In the postpartum period, the Hemodynamic parameters slowly return to its baseline values, but the full resolution may take in six months after giving birth. The blood volume also decreases by 10% within 3 days after giving birth. The hemoglobin level and the hematocrit will stabilize after 2 weeks. The systolic and diastolic pressure will stay the same from late pregnancy until 12 weeks postpartum. Within 2 weeks of postpartum, the systemic vascular resistance will increase by 30% 

NEED A ANSWER FAST I THINK IT IS A PLZ HELP ME!!!!!

The study of anatomy is divided into two fields, gross anatomy and microscopic anatomy. Which of the following scenarios involves microscopic anatomy?

A histologist creates a tissue culture in the lab.
B doctor finds a broken bone in an injured patient.
C chiropractor determines the curve of the spine.
D medical student examines the heart of a cadaver.

Answers

I think it is A to, since the tissues are the closet thing to cell, which microscopic anatomy studies.

Answer:

A to, since the tissues are the closet thing to cell, which microscopic anatomy studies.

Explanation:

Gypsum and quartz can look very similar. which test can help you distinguish them?

Answers

The test that they can use in differentiating the gypsum and quartz which are considered to be minerals is the mineral test. The mineral test can differentiate the hardiness of the minerals, as well as their; acidity, magnetism, streak, specific gravity and even their tenacity.

What brain structure relays information from the eyes to the visual cortex?

Answers

The Thalamus relays information from the eyes to the visual cortex. 

I hope this helped!

What part of the cell is an organelle that converts glucose energy from foods to usable energy for us?

Answers

Mitochondria converts glucose into energy for us

Ging, smaller-breed dogs are more likely to develop ______ than either larger-breed dogs or aging cats

Answers

"chronic valvular disease"

The chronic valvular disease may affect many breeds but is the most common in smaller breeds. Many aged dogs develop some valvular degeneration, but it is mostly on smaller breeds that heart symptoms come up. This is a degeneration most likely connected to genetic factors. 

The _____ detect shades of grey and is/are responsible for peripheral vision, which the ______ is/are responsible for color vision and seeing fine detail.

Answers

The RODS detects shades of grey and are responsible for peripheral vision, while the CONES are responsible for colour vision and seeing fine details. 
Rod cells are photoreceptor cells that are located on the retina of the eyes. Rods cells are usually concentrated at the outer edge of the retina and they are use in peripheral vision. Cones on the other hand are photoreceptor cells which are responsible for colour vision and they work best in bright light.

What does atp stand for? what is its main function in the cell? how many phosphate groups does it have?

Answers

adenosine tri-phosphate and is the energy used by an organism in its daily operations

Restrictive pulmonary disease resulting from prolonged inhalation of fine dusts is termed:

Answers

Its called pneumoconiosis.

Hope this is right.

Science Help !Determining Total Magnification: The eye piece (ocular lens) you “looked” through on the virtual microscope had a power of 10x. If you were using the 4x objective lens, what would the total magnification before the specimen you are viewing? Show your work!!

Answers

Final answer:

The total magnification of a microscope can be determined by multiplying the power of the ocular lens by the power of the objective lens. In this case, with an ocular lens power of 10x and an objective lens power of 4x, the total magnification is 40x.

Explanation:

In microscopy, the total magnification is determined by multiplying the power of the ocular lens by the power of the objective lens. According to the question, the power of your ocular lens, which is the lens you look through, is 10x. The power of the objective lens, which is the one closer to the specimen, is 4x.

To calculate the total magnification, you simply multiply the ocular lens power by the objective lens power (10x * 4x), which gives you a total magnification of 40x. This means that the specimen you are viewing appears 40 times larger than its actual size when viewed through the microscope.

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Final answer:

The total magnification before the specimen can be determined by multiplying the magnification of the ocular lens by the magnification of the objective lens. In this case, the total magnification is 40x.

Explanation:

The total magnification before the specimen can be determined by multiplying the magnification of the ocular lens by the magnification of the objective lens. In this case, the ocular lens has a power of 10x and the objective lens has a power of 4x. Therefore, the total magnification before the specimen is:

Total magnification = Ocular magnification × Objective magnification

Total magnification = 10x × 4x = 40x

So, the total magnification before the specimen is 40x.

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The city has applied for a government grant to build a new wastewater treatment facility. To qualify for the grant, the city must prove it has accounted for all potential dangers to animal populations surrounding the plant. What environmental parameters should be monitored to ensure the plant is not adversely affecting the animal species living near the plant?

Answers

The environmental parameters that should be monitored to ensure that the plant is not adversely affecting the animal species near the plant are MIGRATING BIRD POPULATION AND THE CARRY CAPACITIES OF THE LOCAL ANIMAL SPECIES. Monitoring these parameters, we allows the city to know if the plant set up is affecting the population of the animals in the area.

The environmental parameters that should be monitored to ensure the plant is not adversely affecting the animal species living near the plant is the gradual migrating of bird populations and the carry capacities of local animal species.

Monitoring of environmental parameters would allows the city to know if the plant set up is affecting the population of the animals in the area.

In conclusion, the monitored parameters would be gradual migrating of bird populations and the carry capacities of local animal species.

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Which area of the limbic system has considerable influence on the secretion of hormones throughout the body?

Answers

The hypothalamus.

The hypothalamus  links the nervous system with the endocrine system.  It's part of the limbic system but can also synthesizes and secretes  hypothalamic hormones. These hormones will either stimulate or inhibit the pituitary gland, which releases hormones that go throughout the body to the glands and organs.

 



Hypothalamus is the part of the limbic system that has considerable influence on the secretion of hormones throughout the body.

Further Explanation:

The parts of the brain that are located under the temporal lobe sandwiching the thalamus collectively constitute the limbic system. The limbic system was first defined by Paul D. MacLean. The biggest area of the brain is occupied by the forebrain. The limbic system, the hypothalamus, thalamus, and the pineal gland are the structures of the forebrain.  A tiny structure in the brain that is present just on the brain stem in between the cerebral cortex and midbrain is called the thalamus.

The part of the forebrain that lies beneath the thalamus is known as the hypothalamus. Hypothalamus means "under the thalamus" This part of the brain is responsible for the control and coordination of the autonomous nervous system, the pituitary gland secretion, the thirst, temperature and systems of homeostasis.

Two different sets of nerve cells that are present in the hypothalamus stimulates the production of the hormones. The maintenance of proper production of all the hormones is done by the gland. One set of the nerve cells transports the hormones produced by hypothalamus to the pituitary stalk from where the hormone is transported to the posterior lobe of the pituitary gland. These hormones (ADH and oxytocin) are then released in the bloodstream.

Learn more:

Learn more about which part of the brain when impaired by alcohol affects memory https://brainly.com/question/2034996 Learn more about how temperature effects the rate of a chemical reaction https://brainly.com/question/1569924 Learn more about drugs that effect brain https://brainly.com/question/1332595

Answer Details:

Grade: High School

Subject: Biology

Chapter: The limbic System.

Keywords:

Brain, forebrain, thalamus, limbic system, pineal gland, hypothalamus, temperature, sleeping, reproductive functions, amygdala, hippocampus, mid brain, cerebral cortex, limbic system.

Why is the liver such an important organ in a vertebrate’s biological system?

Answers

It helps clean up all the type of "bad guys" i would call it, if you didnt have the liver, well then.... you'll fine out ;)

Most living organisms consist of more than 70% water by weight true or false

Answers

My best guess is False.
Considering from what I learnt, it is false

60% of our body is filled with water
But babies have 78% of their body filled with water..

Hope this helps :))
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