Who's described DNA as Deoxyribonucleic acid (DNA): double helix, Watson-Crick model of DNA structure

Answer:

letter B

Explanation:

hope this helps

The part of an amino acid that has the greatest influence on the overall structure of a protein is the side chains.

Proteins are one of the four basic macromolecules (the rest being carbohydrates, lipids and nucleic acids) that make up living things. It is made up of units of monomers called amino acids.

Each amino acid consists of an amino group attached to the alpha carbon of a carboxylic acid. In simpler terms, an amino acid is made up of a carboxylic acid, an amino group, a hydrogen atom and a side chain. The properties of the side chain determine the structure of the protein it forms.

Differences in properties of amino acids arise from the different size, shape, ionization properties and solubility of its side group. Depending on this, an amino acid can be polar, non-polar, polar but not charged, positively or negatively charged at neutral ph.

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The common Rh antigens can be arranged according to their immunogenicity from greatest to least as follows:

D > c > E > C > e

Among these antigens, the RhD antigen (D) is considered the most immunogenic. It elicits a strong immune response in individuals lacking this antigen, leading to the production of anti-D antibodies.

The c antigen follows D in terms of immunogenicity. While less immunogenic than D, it can still provoke an immune response.

The E antigen is less immunogenic than both D and c but can still stimulate the production of antibodies.

The C antigen is even less immunogenic than E.

Finally, the e antigen is the least immunogenic among these common Rh antigens.

Understanding the relative immunogenicity of these antigens is crucial in the field of transfusion medicine and prenatal care to prevent hemolytic disease of the newborn and transfusion reactions.

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Answer:

I hope you understand this ans

The factors that the environment plays in DNA expression are nutrition, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens.

Gene expression is the process by which our DNA's instructions are transformed into useful products, such as proteins.

Environmental elements can change which genes in an animal are expressed, which in turn impacts the animal's phenotype.

Sometimes a gene's DNA sequence or degree of activity is altered by the environment. Both of these impacts have the potential to alter the proteins that a gene produces, which in turn influences characteristics.

The nucleotide sequence of a gene can be altered by some adverse environmental influences. DNA strands, for instance, can be damaged by UV light.

Therefore, the environmental factors are nutrition, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens.

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Answer: 1 is Tall, because it is TT  2 is tall because it is Tt 3 is Tall because it is Tt and 4 is short because it is tt

Explanation:

1 is because there is 2 dominants TT which makes it go to the trait Tall, same with 1 - 3 since they are Tt, the dominant trait will show for 1 - 3. They are all genotypes because it is a physical trait that you can see because there tall and short

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose.

Explanation:

Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

I hope this helps. :).

Answer:

Its main functions are protection, absorption of nutrients, and homeostasis. In structure, it consists of a keratinized stratified squamous epithelium; four types of cells: keratinocytes, melanocytes, Merkel cells, and Langerhans cells.

Explanation:

Btw is your proflie pic a pic of Taehyung from BTS!??!?!?!?!?!!??!?!?!

The substance produced by a living organism that is poisonous to human beings is referred to as a toxin (C).

A toxin is any substance produced by a living organism, such as bacteria, fungi, plants, or animals, that is harmful or poisonous to human beings. Toxins are typically synthesized by organisms as a defense mechanism or as a means to incapacitate or kill prey. When humans come into contact with toxins, they can cause adverse effects on the body, ranging from mild symptoms to severe illness or even death. Toxins can target specific organs or systems in the body and disrupt their normal functioning. Examples of toxins include botulinum toxin produced by certain bacteria, venom from snakes or spiders, and poisonous compounds found in certain plants or mushrooms.

Antibodies, on the other hand, are proteins produced by the immune system in response to the presence of foreign substances called antigens. Antibodies help to identify and neutralize antigens, such as bacteria or viruses, as part of the body's immune response.

Acid is a general term for a substance that has a low pH and can donate protons or accept electrons. Acids can have various effects on the body, but they are not inherently produced by living organisms.

Antigens are substances, usually proteins, that can trigger an immune response in the body. They are recognized by the immune system as foreign or non-self, leading to the production of antibodies. Antigens can come from pathogens, such as bacteria or viruses, or from other sources such as allergens or transplanted tissues.

Hence, toxin is the substance that is poisonous to human beings.

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Answer:

Transportation

Explanation:

It can also be referred to transpiration.

i think is D. sodium-potassium pump,i hope that's correct

Answer:Cellular respiration is a chemical process in which the bonds of food molecules and oxygen molecules are broken and new compounds are formed that can transport energy to muscles.

Explanation:

If a mutation rendered the signal recognition particle nonfunctional, All proteins normally secreted by the cell would remain in the cytosol.

A mutation is a modification to the DNA sequence of an organism. Mutations can result through viral infection, errors in DNA replication during cell division, and exposure to mutagens.

Our cells are constantly undergoing mutations, yet very few of these have any negative effects on our health. There are numerous explanations for why mutations typically don't have significant effects. One explanation is that our cells have highly advanced machinery for quickly correcting mutations. Therefore, they won't have enough time to cause issues.

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If higher immunity leads to a lower number of eggs produced by females in Dlugosch's Small Octopus, then there will be a negative correlation between immunity level and egg production.

A K approach would be more likely to develop if the illness causes the octopus population to decline. Resources are few in a tiny community, therefore long-term stability and survival are prioritized over rapid population expansion. The K approach emphasizes having fewer kids while allocating more resources to ensuring their survival and welfare. In a small population, the following two characteristics connected to a K strategy might be more prevalent:

Increased parental care: Parents invest more time and resources in raising a smaller number of offspring to increase their chances of survival and reproductive success.

Delayed maturation: Individuals take longer to reach reproductive maturity, allowing them to invest more time in growth, development, and building up resources before reproduction.

These traits help ensure the survival and success of the limited number of offspring in a small population, aligning with the K-selected life history strategy.

In this figure, the y-axis represents the number of eggs produced by females, and the x-axis represents the immunity level of the octopuses. The bars or lines would show a decreasing trend as the immunity level increases, indicating a negative relationship between immunity and egg production.

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Answer:

Explanation:

Nuclear energy originates from the splitting of uranium atoms – a process called fission. This generates heat to produce steam, which is used by a turbine generator to generate electricity.

Answer:

a. Nuclear fusion

Explanation:

Penn Foster/JMHS

Answer:

Alanine

Explanation:

Using the codon chart (see the attached image), that is, a chart of triplet codes and the corresponding amino acids that they represent, the amino acid called for by GCA codon is alanine.

There are 64 possible codons in nature from 4 nitrogen bases - adenine (A), guanine (G), cytosine (C), and uracil (U). The codes are degenerates because they represent only 20 naturally occurring amino acids. Hence, more than one codons codes for each amino acid. Apart from GCA, other codons that translate as alanine include GCU, GCC, and GCG.

Answer:

The average kinetic energy of the molecules is proportional to absolute temperature. At any given temperature, the molecules of all gases have the same average kinetic energy.

Explanation:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. Solids, liquids and gases all expand when heat is added.

Answer:

The correct answer is - it is a recessive trait

Explanation:

In the given question it is stated that when there is a cross between an unusual cat with curled ears and a cat with non curled ears the F1 offspring's ears are phenotypically non curled. As we know in Mendel's genetics there are two alleles for every trait similarly, here non curled ears C are dominant as in F1 generation they are expressed 100% and a cat with curled ears c is recessive as it is masked by the curled in heterozygous condition.

To prove it  these offspring were crossed  each other, the phenotypic ratio was 3:1,

     C   c

C   CC  Cc

c   Cc   cc

It is clear that curled ears is a recessive trait

Around 30 to 400 trillion bacteria microorganisms reside in the human stomach. These microbes include bacteria, viruses, fungus, and other microbes.

The gut microbiome is a term used to describe this assemblage of microbes, and it is thought to have a significant impact on human health and disease. People's gut microbiomes can differ greatly in composition, and it can be influenced by things including environment, genetics, and food. This intricate ecology of microbes that live in the digestive tract makes up the gut microbiome. More than 1,000 different species of bacteria are thought to exist in the gut, making up the majority of these microorganisms. The gut microbiome also contains viruses, fungus, protozoa, and archaea.

An essential component of the human body is the gut microbiome, which plays a role in numerous physiological functions like metabolism, immunological response, and digestion. Disruptions to the gut microbiota have been related to a number of illnesses, including obesity, type 2 diabetes, inflammatory bowel disease, and even neurological disorders including Parkinson's disease and depression. The gut microbiome can also have an impact on general health.

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Answer:

Explanation:

Question A

Evaporation happens because fast moving molecules break out of the surface of the water. The fact that there is part of a plant in the water means that the water travels up to the leaves where it evaporates. There are two sources of evaporation in test tube A and only one in B.

Question B

The Cotton plug in the top of the test tubes slows the process down. There are still molecules that are escaping but the cotton absorbs them especially in test tube B. The molecules are free to go in test tube A. They make their way to the leaves where they evaporate.

Part C

You'll have to do the rest of this yourself. The graph for Test Tube A should be less (closer to the x axis) than B.

The rest of the answers are explained in A and B

Answer:

phosphorus

Explanation:

Since Phosphorus is an essential component of phospholipids, nucleic acids, phosphoproteins (casein), high energy phosphate esters (ATP), hexose phosphates, creatine phosphate, it also provides strength to the exoskeletons of clams and oysters.

Answer:phosphorus

Explanation:

Answer:

yes its yes cool man cool fine

Explanation:

Explain ing this is the yes to the yess

Rickettsia and Chlamydia are similar in that they are obligate intracellular bacteria. This means that they require a host cell in order to survive and replicate.

They cannot reproduce outside of a host cell, and therefore must infect other cells in order to continue their life cycle. Additionally, both Rickettsias and chlamydias are often carried by arthropod vectors, such as ticks, mites, and lice, which transmit the bacteria from one host to another. While both types of bacteria can cause eye infections, this is not a defining characteristic of either group.

Finally, it is worth noting that while Rickettsias and chlamydias share some similarities, there are also many differences between the two, such as their morphology, genetic makeup, and clinical manifestations. So, to sum up, the long answer to your question is that Rickettsias and chlamydias are similar in being obligate intracellular bacteria that are often carried by arthropod vectors.

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Telomerase is the name of the enzyme that stops linear chromosomal ends from deteriorating. The repeating DNA sequences known as telomeres are added to the ends of chromosomes by the specialist enzyme telomerase.

Telomeres are essential for maintaining the chromosome's integrity and preventing the genetic material from being lost during DNA replication.

Due to the intrinsic constraints of the DNA replication process, a little amount of the telomere is lost throughout each cycle of replication.

Telomerase prevents the chromosomes from being too short and potentially losing vital genetic information by re-adding the missing telomere sequences to counterbalance this shortening.

Telomerase contributes to the lifespan and integrity of chromosomes by preserving the length and stability of telomeres.

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Answer: Obviously the daddy lion gives Symba the rights to the kingdom when he grows!

Safety, spotting danger quickly, defense and catch a large prey are the advantages of living in a group.

Safety,  able to quickly spot danger, helping in defending themselves and catch a large prey are the various benefits from living in a group. People living in a group provides protection to their members and defend themselves against attack of enemy or wild animals.

They also prey better when they are in a group form and catch a big meal for themselves so we can conclude that safety, spotting danger quickly, defense and catch a large prey are the advantages of living in a group.

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Answer:

Explanation:

i would say no because it dont explain y it exist or what cased it so the explanation of phenomenon is a scientific theory