Watson and Crick described the DNA molecule as a
A) single strand
B) branching chain
C) double helix
D) straight chain

Answers

Answer 1
B that is the correct answer

Related Questions

which method of evolution best defines the figure:


A. fossilization

B. non-random mating

C. natural selection

D. gene flow

Answers

Answer:

C) Natural Selection

Explanation:

Can somebody help me?

Answers

Answer:

Sorry but this isn't clear. What I understood was something related to meosis or something. Not sure tho. Plz post it clear so that you do get answer

Explanation:

in a cell all organells works together to carry out ?

Answers

Answer:

Cell organelles must work together to carry out protein synthesis, utilize proteins within the cell, and transport them out of the cell.

Cell organelles work together to carry out metabolic activities for the cell

A wave with a height of 10 feet and a wavelength of 20 feet has a wave base
of ___?
A. 10 feet
B. 20 feet
C. 40 feet
D. 5 feet

Answers

Answer:

10 feet is the answer

hope it will help u

you

Answer:

10 feet

Explanation:

i hope this help you but I'm sure from it

What protects the living organisms on the earth from extreme heat and extreme cold?

Answers

Earth atmosphere is the answer

Compare and contrast the advantages and disadvantages of wind power and geothermal power

Answers

Answer:

An Overview of Geothermal Pros and Cons:

Pros Cons

This energy source is more environmentally friendly than conventional fuel sources.  The largest single disadvantage of geothermal energy is that it is location specific.

A source of renewable energy.  Gases are released into the atmosphere during digging.

The number of exploitable geothermal resources will increase with ongoing research and development in the industry.  Geothermal energy runs the risk of triggering earthquakes.

A sustainable source of energy as its always available unlike wind and solar.  Expensive resource to tap into, with high upfront costs ranging from around $2-$7 million for a plant with a 1 megawatt capacity.

A reliable source as its easier to predict the power output from a geothermal plant with a high degree of accuracy.  Energy fluid needs to be pumped back into the underground reservoirs faster than it is depleted. Management is required to maintain sustainability.

No fuel is required.  

Increase in exploration meaning that new technologies are being created to improve the energy process.  

Pollution levels are much lower compared to fossil fuels.

Explanation:

Environmental designers design structures to match the environment.

Please select the best answer from the choices provided

от
OF

Answers

Answer:

True

Explanation:

Environmental designers are professionals who try to limit the effects of the building process on the surrounding environment when designing programs, plans, policies, buildings, commercial products, etc. They are capable of simultaneously providing ecological sustainability and pleasant human spaces. For that purpose, environmental designers can build structures by using environmentally friendly materials. Some of the most important areas of research that include the job of an environmental designer include ecology, sustainability, architecture, urban planning, construction, environmental impact, environmental psychology, etc.

Answer:

true

Explanation:

edge 2021

A Father and Mother are both carriers of the autosomal recessive condition known as albinism. They have one child, and a second child two years later. Their first child was not albino. Knowing this, you can say that the probability of the second child having albinism is Note - Albinism is the result of a lack of pigmentation in skin and other cells.​

Answers

answer: there is a 50% probability of the 2nd child having albinism.

since the mother and father are both carriers then they would both have Aa. meaning there would be a 50% chance of the child being normal (AA) and a 50% chance of the child having albinism (aa)

Both the mother and father would have Aa because they are both carriers. i.e., there would be a 50% probability that the child would be albinized (AA) and a 50% chance that the child would be normal (aa).

What is albinism?

Albinism refers to a collection of extremely uncommon genetic illnesses that are characterized by the absence of melanin at birth in either an animal or a plant.

People who have albinism either have a significantly diminished amount of melanin or none at all. Both their coloring and their eyesight may be impacted as a result of this. Albinism is characterized by extremely light or very light blonde hair, while some individuals with the condition have brown or ginger hair. The precise color is determined by the amount of melanin that is produced by the body.

Learn more about albinism, here:

https://brainly.com/question/14734442

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Describe the neural and renal mechanisms that control blood pressure.

Answers

Answer:

The autonomic nervous system is the main neural regulator of circulation and blood pressure in the short term and beat by beat and exerts its function through various reflexes that regulate vasomotor tone, heart rate and cardiac output. At the renal level, the renin–angiotensin–aldosterone system is possibly the most important in the maintenance of arterial homeostasis.

Explanation:

Blood pressure is regulated by a series of interrelated autonomic systems and humoral reflexes, which continually adjust the determining elements of the system (heart rate, stroke volume, total peripheral resistance and circulating volume).The effective circulating volume is controlled by a series of reflex systems, which obtain information about the perfusion pressure (baroreceptors in the carotid bulb and aortic arch), plasma osmolarity (hypothalamus) and urinary sodium (distal tubule).The kidney has its own self-regulatory mechanisms. The reduction in renal blood flow is detected at the level of the mesangial cells of the juxtaglomerular apparatus, starting the renin-angiotensin system. The increase in angiotensin II produces on the one hand local vasoconstriction, and on the other hand stimulates the production of aldosterone by the adrenal cortex with the consequent tubular reabsorption of sodium and water.Antidiuretic hormone or vasopressin (released from the hypothalamus by stimulation of arterial baroreceptors and also by stimulation of angiotensin II) also acts at the renal level, which acts as a powerful and water-saving vasoconstrictor in the distal tubule.

PLEASE ANSWER BEFORE 2PM C JUNE 8TH, 2021. Four students were trying to apply their knowledge of cell theory to scenarios outside of the classroom. Here is what each said.

What student best applied cell theory to the real world?​

Answers

Answer:

Hi, there it's Jasmine because the cell theory consist

1. All living things are made of cells

2. Cells are basic unit of life in living things

3. All new cells are created from preexisitng cells

Explanation:

So, the answer is Jasmine

Which of the following statements best explains the hypothesis that the development of sexual reproduction has resulted in acceleration of the rate of evolution?
(A) Mutations are more likely to occur in spermatogenesis and oogenesis than in mitotically dividing cells.
(B) Sexual reproduction results in more offspring than does asexual reproduction.
(C) Those members of a species that are best adapted to their environment are most likely to be successful in sexual reproduction.
(D) Mutations usually do not occur in the production of spores or in cells dividing by fission.
(E) Sexual reproduction is more likely to result in genetic recombination than is asexual reproduction.

Answers

Answer:

c

Explanation:

pls help!!
What should be the parents genotype if the frequencies of the alleles in F1 are: BB = 25%; Bb= 50%; bb= 25%?Immersive Reader
(2 Points)

A. Mother: BB - Father: BB

B. Mother: Bb - Father: Bb

C. Mother: bb - Father: BB

D. Mother: BB - Father: bb

Answers

Answer:

B

Explanation:

hope the picture helps you understand it better:)

The middle portion of unspecialized mesoderm from which cartilage, bone, and blood develop is called . The mature cells that live in cartilage and maintain the matrix around them are . is a type of cartilage with a net of collagen fibers to help resist compression and tension. Any tissues that exist in layers and form linings or coverings fall into the category of . is the type of connective tissue that forms a structural net to support other cells. Submit Request Answer Provide Feedback Next

Answers

Answer:

The correct terms or tissues are :

mesenchyme

chondrocytes

fibrocartilage

stratified epithelia

reticular connective tissue

Explanation:

1. Mesenchyme is comprised of loose cells embedded in a mesh of proteins and fluid that makes the middle portion of the unspecialized mesoderm from which cartilage, bone, and blood develop.

2. The mature cells that live in cartilage and maintain the matrix around them are chondrocytes.

3. Fibrocartilage is a type of cartilage with a net of collagen fibers to help resist compression and tension.

4. Any tissues that exist in layers and form linings or coverings fall into the category of stratified epithelia.

5.. Reticular connective tissue is the type of connective tissue that is a supportive structural network fibre to support other cells.

(c) Predict the growth rate pattern of the E. coli-M bacteria when they are initially added to the growth medium if the mutation does not interfere with glucose utilization.

(d) Provide reasoning to justify your prediction.

Answers

The question is incomplete. The complete question is :

Glucose is the preferred carbon source for  Escherichia coli bacteria. Researchers isolated  E. coli-M, a strain of  E. coli with a single mutation that inactivates a key enzyme in one of the three glycolytic pathways  E. coli bacteria use to break down glucose. In an initial experiment to study the effect of the mutation on glucose utilization and  ATP production by the bacteria, the researchers add  2×104  E. coli-M bacteria to 400  mL of a growth medium that contains glucose. To measure the rate of bacterial growth, they monitor the optical density of the culture as a measure of bacterial concentration over time.

(c) Predict the growth rate pattern of the E. coli-M bacteria when they are initially added to the growth medium if the mutation does not interfere with glucose utilization.

(d) Provide reasoning to justify your prediction.

Solution :

c). It is given that Glucose is preferred as the carbon source for the Escherichia coli bacteria or the E. coli-M bacteria. If the growth medium of the E. coli-M bacteria contains a higher concentration of the acetate, then the growth of the bacteria will inhibit without inhibiting the central metabolism.

d). This is predicted because as E. coli-M bacteria grows, it starts secreting acetate. This is known as overflow mechanism. The regulatory interactions mediated by the acetyl-phosphate that plays an important role in the inhibiting growth by the acetate.

Which of the following is not a product of glycolysis?


True

False

Answers

Answer:

We need a full question it's a half question


QUESTION 2
Which of the following substances is not carried in the mem or in the phloem?
Sugar
Water
mu o
Carbon dioxide as
Dissolved minerals​

Answers

Answer:

Carbon dioxide

Explanation:

Xylem and phloem are the two conducting tissues of a vascular plants. They are referred to as vascular bundles. Xylem and phloem are responsible for conducting certain substances from one part of the plant to another.

The xylem is responsible for conducting WATER AND DISSOLVED MINERALS from the root of the plants to other parts e.g leaves, stem, flowers etc. while the phloem conducts sugar (product of photosynthesis) e.g glucose from the leaves of the plant to other parts including the stem, root etc.

According to this question, xylem or phloem does not conduct or carry gaseous substances like carbon dioxide (CO2).

A mutation in Complex I decreases the efficiency of the electron transport chain. However, not all components of the electron transport chain are affected by this mutation. Which component of the electron transport chain will remain unaffected by a mutation in Complex I?
a. Ubiquinone
b. Complex II
c. Complex III
d. Complex IV

Answers

Answer:

b. Complex II

Explanation:

The electron transport chain is a sequential series of proteins located in the inner membrane of the mitochondria that act to transfer electrons from different members of the transport chain in a series of redox reactions, which is coupled to the movement of protons (H+) across the membrane. Complex I (also called NADH dehydrogenase or NADH- CoQ reductase) accepts electrons from NADH and passes them to Complex III (also known as coenzyme Q reductase), which also receives electrons from Complex II (succinate coenzyme Q reductase). Ubiquinone (Coenzyme Q) accepts electrons from both complex I and complex II and transfer them to complex III. From complex III electrons pass to complex IV through cytochrome c oxidase and finally to molecular oxygen (O2, the final electron acceptor). In consequence, Complex I and Complex II are linked by different pathways to Complex III, thereby it is expected that Complex II remains unaffected by a mutation in Complex I.

What are some factors/processes that contribute to genetic Variation:

Meiosis
Crossing Over
Mitosis
Protein Synthesis

Answers

Mutation, recombination, and immigration of genes...

You would choose crossing over.

Protein misfolding causes ____.​
a.​arthritis
b.Creutzfeldt-Jakob disease​
c.​schizophrenia
d.​immunodepression
e.​tuberculosis

Answers

Answer:

b

Explanation:

Explanation:

everything can be found in the picture

The closest living ancestors of birds are crocodilians. What provides morphological evidence for this relationship?
a) both are homeothermic
b) both have extensive air sac system
c) both have a 4-chambered heart
d) both have differentiated teeth
e) none of the above

Answers

Answer:

c) both have a 4-chambered heart

Explanation:

The heart that consists of four chambers where the blood flows. In this, the blood entered into the right atrium and passes via the right ventricle. Now the right ventricle pumps the blood into the lungs in which it is oxygenated. Now the oxygenated blood would be bring back to the heart via the pulmonary veins that entered into the left atrium

So as per the given situation, the option c is correct

what are the characteristics of normal cells and cancerous cells?​

Answers

Normal cells stop growing (reproducing) when enough cells are present. For example, if cells are being produced to repair a cut in the skin, new cells are no longer produced when there are enough cells present to fill the hole (when the repair work is done).

In contrast, cancer cells don’t stop growing when there are enough cells present. This continued growth often results in a tumor (a cluster of cancer cells) being formed.

Type of cell division that is occurring in the cell in the diagram​

Answers

Answer:

There is no diagram but the cell division happens in stages. PMAT is a way to remember them. prophase, metaphase, anaphase, and telophase. This all takes place in Mitosis. Mitosis is the division of cells to make more *identical* cells, (skin cells, stomach cells). But Miosis is the making and division of sperm cells *not Identical* (sperm, and egg cells) are made in this phase.

ecologically, termites are classified as a carnivore b, detritivores c, insectivore d, herbivore

Answers

Answer:

b. detritivores

Explanation:

Detritivores (also known as detrivores, detritophages, detritus feeders, or detritus eaters) are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as faeces).

Why is it important to know the proper ways on how to sustain Earth's resources?

⚠Nonsense = Report​

Answers

Answer:

Sustainability is important for many reasons including: Environmental Quality – In order to have healthy communities, we need clean air, natural resources, and a nontoxic environment. ... We need clean air, natural resources, and a nontoxic environment.

Hydrothermal vent ecosystems do not have sunlight available, and hence there are no kinetic energy. Instead, play the role of on which other organisms rely for energy. They compounds such as hydrogen sulfide to obtain energy for themselves. This energy is used to sugar molecules. create an additional energy transfer when they these sugars or eat each other. As in other ecosystems, organisms in hydrothermal vent communities also transform into other forms, such as (energy of motion).

Answers

Answer:

- Hydrothermal vent ecosystems do not have sunlight available and hence there are no photoautotrophs.

- Instead, chemoautotrophs play the role of producers on which other organisms rely for energy. They oxidize compounds such as hydrogen sulfide to obtain energy for themselves. This energy is used to synthesize sugar molecules.

- Consumers create an additional energy transfer when they utilize these sugars or eat each other.

- As in other ecosystem organisms in hydrothermal vent communities also transforms chemical energy into other forms such as kinetic energy (energy of motion).

Explanation:

A hydrothermal vent is a geyser on the seafloor that is generated by underwater volcanoes or tectonic activity through which geothermally heated water erupts. Hydrothermal vent ecosystems contain hydrothermal microorganisms which are able to survive just outside the hottest waters. For example, Methanopyrus kandleri are hyperthermophile prokaryotic microorganisms that live in these ecosystems where they produce methane from reducing CO2. Chemosynthesizers are able to convert carbon molecules (e.g., CO2) and nutrients into organic matter by the oxidation of inorganic compounds such as hydrogen sulfide and/or ferrous ions. Moreover, hydrothermal vent ecosystems have the potential to support high biomass and productivity levels due to the establishment of symbiotic relationships between chemosynthesizers with respiring heterotrophs, which obtain energy from other organisms. Chemosynthesizers are eaten by other organisms (e.g., amphipods and copepods), whereas larger organisms (e.g., snails and crabs) form predator and prey relationships above these primary consumers.

Hydrothermal vent ecosystems do not have sunlight available and hence there are no photoautotrophs.

Instead, chemoautotrophs play the role of producers on which other organisms rely for energy. They oxidize compounds such as hydrogen sulfide to obtain energy for themselves. This energy is used to synthesize sugar molecules.

Consumers create an additional energy transfer when they utilize these sugars or eat each other.

As in other ecosystem organisms in hydrothermal vent communities also transforms chemical energy into other forms such as kinetic energy (energy of motion).

What is Hydrothermal ecosystem?

This is the type of ecosystem found on seafloor with geothermally heated water discharges. It lacks sunlight and there are no presence of photoautotrophs.

Organisms present mostly convert chemical energy into other available forms.

Read more about Hydrothermal ecosystem here https://brainly.com/question/11166014

Nucleic acids generally contains the most what?

Answers

Answer:

Sugar, nitrogenous bases, phosphate group

Vaccines are effective in preventing disease because they:

a
Interfere with the release of Suppressor T-Cells
b
Are antibodies directed against specific pathogens
c
Trigger Memory B-Cell & antibody formation
d
None of the Above

Answers

Answer:

C. Trigger memory B-cell and antibody formation

The information in DNA in the nucleus is used to produce

Answers

Answer:

Proteins

Explanation:

DNA courses can be turned into messages that can be used to make proteins

………………………………………………………………….

Answers

whats with the dots ._.

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PII CVS PRACTICE Exam#1 68Qs.doc (69 KB)
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30. The largest cells in the blood that leave the bloodstream to become macrophages are th
A. Neutrophils
B. Eosinophils
C. Lymphocytes
D. Monocytes
21
ruthroblastocie fatalie also

Answers

Your Answer will be D. Monocytes

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Answer:

The largest cells in the blood that leave the bloodstream to become macrophages are the

Monocycles

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Byte pair encoding is a data encoding technique. The encoding algorithm looks for pairs of characters that appear in the string more than once and replaces each instance of that pair with a corresponding character that does not appear in the string. The algorithm saves a list containing the mapping of character pairs to their corresponding replacement characters.For example, the string "THIS_IS_THE_BEST_WISH" can be encoded as "%#_#_%E_BEST_W#H" by replacing all instances of "TH" with "%" and replacing all instances of "IS" with "#".Which of the following statements about byte pair encoding is true?A. Byte pair encoding is an example of a lossy transformation because it discards some of the data in the original string.B. Byte pair encoding is an example of a lossy transformation because some pairs of characters are replaced by a single character.C. Byte pair encoding is an example of a lossless transformation because an encoded string can be restored to its original version.D. Byte pair encoding is an example of a lossless transformation because it can be used to transmit messages securely. the colour of chameleon is not it beauty but for what purpose The sum of three numbers is 28. The second number is three times the first and the third is 7 less than the second. What are the numbers A box of chocolate is divided among Jim, Jack and David. David gets 2/5 of the box and Jack gets 1/5 of David's share and the rest which was given to Jim was 260 grams. What is David's share in Grams? What is the product of a nonzero rational number and an irrational number? The box plots below show the math scores of students of two different classes, which statement is correct What is the median of the data represented in the box plot below? 4) Given that the polynomial p(x) = 2x4 - 3x2 + 6x + k.Find the value of k if (x - 1) is a factor of p(x).{ANS: k = -5) A cylinder is sliced perpendicular to its circular base. What shape will the cross section be? In a wire, when elongation is 4 cm energy stored is E. if it is stretched by 4 cm,then what amount of elastic potential energy will be stored in it?plz don't spam answer fast in imp Where do the railroads in when moving west I will give brainiest! "what is the Breadth of the ban on plastic bottles" If f(x) = x/2 -3 and g(x) = 3x + x - 6, find (f + g)(x). O A. 3x O B. 3x + 3x-9 3x O C. 3.x2 + x - 3 O D. 4x2-9 how to calculate sound of an echo How do peace treaties ending wars affect the way people live after the fighting is over? Somebody plz help the quickest you can this is urgent A farmer wants to fence in a rectangular plot of land adjacent to the north wall of his barn. No fencing is needed along the barn, and the fencing along the west side of the plot is shared with a neighbor who will split the cost of that portion of the fence. If the fencing costs $20 per linear foot to install and the farmer is not willing to spend more than $7000, find the dimensions for the plot that would enclose the most area. (Enter the dimensions as a comma separated list.) How is deforestation affecting the Earth? Please help me :))Which golf ball would hit the surface with the greatest impact: a ball that fell one meter above the surface of the Earth or a ball that fell one meter above the surface of the Moon? 10.A business operates its petty cash on the imprest system .At thebeginning of the month the petty cashier was given $200.She spent$152.How much will she be reimbursed?a. $48b. $152c. $200d. $352