is dna synthesis apart of creating rna

Answer:

Mitochondria

Explanation:

If ever in doubt, just remember: Mitochondria is the powerhouse of the cell

Prednisone, as a steroid, exerts its effects at the cellular level by interacting with specific receptors within cells. These receptors, known as glucocorticoid receptors, are present in various types of cells throughout the body.

When prednisone is administered, it binds to these receptors, triggering a series of molecular and cellular events.

Once prednisone binds to glucocorticoid receptors, the steroid-receptor complex enters the cell's nucleus, where it can directly influence gene expression. It acts as a transcription factor, meaning it can regulate the production of specific proteins by either activating or inhibiting the transcription (synthesis) of certain genes.

The activation or inhibition of gene transcription by prednisone leads to changes in the synthesis of various proteins involved in inflammatory and immune responses. Prednisone predominantly acts by suppressing the immune system and reducing inflammation. It achieves this by inhibiting the production of inflammatory mediators, such as cytokines and prostaglandins, which are involved in the initiation and progression of inflammatory reactions.

Furthermore, prednisone can also enhance the activity of anti-inflammatory proteins, such as lipocortin-1, which inhibits the enzyme phospholipase A2. This enzyme is responsible for the production of arachidonic acid, a precursor for inflammatory mediators like prostaglandins and leukotrienes. By inhibiting phospholipase A2, prednisone reduces the availability of arachidonic acid and subsequently decreases the production of inflammatory substances.

In summary, prednisone induces changes at the cellular level by binding to glucocorticoid receptors within cells, which then influences gene expression and protein synthesis. These changes lead to the suppression of immune responses and the reduction of inflammation, making prednisone an effective treatment for various conditions involving allergic reactions, arthritis, and inflammatory responses.

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Answer:

secretary bird

Explanation:

Vertebrae have a central opening, called vertebral foramen, that form the spinal canal and contain the spinal cord.

Specific growth rate is used to determine the rate of a certain organism.

The specific growth rate is the rate of biomass production per unit of initial biomass concentration, or the amount of biomass produced divided by (initial biomass x time taken).

Take the current value and subtract it from the previous value to determine the growth rate. To get a percentage representation of the rate of growth, multiply this difference by 100 and divide it by the previous value.

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Answer:

The process of breaking of the body into pieces or into small parts, called Fragmentation.

Explanation:

hope u liked the answer :)

Fragmentation is a reproductive mechanism where an individual is divided into different parts, each with the ability to develop the reconstruction of a complete organism.

Therefore, we can conclude that fragmentation is a form of reproduction by which the spontaneous rupture of an organism into two or more parts occurs, each of which is capable of rebuilding a complete organism.

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Answer:

i would say the cell itself is unique

Explanation:

Answer:

cell because it is the smallest unit of our life and it is the building block of living organisms

Replication

.......................

Answer:

Human blood contains a buffer of carbonic acid (H2CO3) and bicarbonate anion (HCO3-) in order to maintain blood pH between 7.35 and 7.45, as a value higher than 7.8 or lower than 6.8 can lead to death. In this buffer, hydronium and bicarbonate anion are in equilibrium with carbonic acid.

Compact bones have features called osteons that are parallel to the long axis and offer the bone strength by relieving tension, preventing bending or fracture.

The structure of an osteon, which is the basic functional unit of compact bone, plays a crucial role in maintaining the strength and health of bone. Each osteon consists of concentric layers of bone tissue arranged around a central canal, which contains blood vessels and nerves. The collagen fibers within the bone tissue provide tensile strength, while the mineralized matrix, mainly composed of calcium and phosphorus, provides compressive strength. The arrangement of these layers in the osteon allows for efficient transmission of forces and prevents fractures. Additionally, the blood vessels within the central canal provide essential nutrients and oxygen to the bone cells, contributing to their growth and repair. Therefore, the structure of an osteon is essential for the overall strength and health of bone.

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Answer:

80ft

Explanation:

Trust me, I got it wrong

Answer:

80 Feet hope this helps you (:

Question 1

The two structures whose primary role is to carry out photosynthesis in plants are option d, palisade mesophyll cells and spongy mesophyll cells.

Palisade mesophyll cells are located in the upper part of the leaf and are responsible for most of the photosynthesis in plants. These cells contain many chloroplasts, which are the organelles responsible for capturing light energy and converting it into chemical energy through photosynthesis.

Spongy mesophyll cells are located beneath the palisade mesophyll cells and also contain chloroplasts. These cells have a more loosely packed structure, which allows for the diffusion of gases, such as carbon dioxide and oxygen, necessary for photosynthesis.

Stomata (option a) are pores located on the underside of leaves that allow for gas exchange, but they are not directly involved in photosynthesis. Cuticle (option b) is a waxy layer on the surface of leaves that helps reduce water loss, but it is not directly involved in photosynthesis either. Upper epidermis (option c) is a protective layer that covers the top of the leaf and does not directly carry out photosynthesis.

Question 2

The correct order of the terms from smallest to largest is option a, which is: seed, embryo, fruit.

A seed is the mature ovule of a plant that contains an embryo, which is the earliest stage of a young plant. The embryo is enclosed within the seed coat, which protects it during dormancy until it has a chance to germinate and grow into a mature plant.

A fruit, on the other hand, is a mature ovary of a flower that encloses seeds. It develops from the flower after pollination and fertilization and provides protection and nourishment to the developing seeds until they are ready for dispersal.

Therefore, the correct order from smallest to largest is seed, embryo, and fruit, which is listed in option a. Option b is incorrect because it lists fruit first, which is larger than the embryo and seed. Option c and d are also incorrect because they do not have the correct order from smallest to largest.

Question 3

Based on the information provided, option a, "Its flowers will likely be pollinated by insects," is the most likely statement to be true.

The fact that the female reproductive structures of the plant mature early in the morning when the flower first opens suggests that the plant is adapted for pollination by insects, which are typically most active during the day. The fact that the anthers do not produce pollen until late in the evening suggests that the plant is adapted to prevent self-pollination, which can occur if the plant's own pollen is released before the female reproductive structures are mature.

Option b, "Self-pollination is unlikely," is not necessarily true based on the information given, as it is possible for self-pollination to occur if the flower remains open long enough for the anthers to release pollen and for the pollen to reach the female reproductive structures.

Option c, "Self-pollination is highly likely," is not true based on the information given, as the plant appears to be adapted to prevent self-pollination.

Option d, "This flower is likely wind-pollinated," is unlikely based on the information given, as wind-pollinated flowers typically do not have specialized timing for reproductive structure maturation and pollen release, as they rely on wind to disperse pollen.

Question 4

The male gametes, also known as pollen grains, are produced by the anther in a flower.

The anther is a part of the male reproductive structures of the flower, called the stamen, and is typically located at the top of a long, slender stalk called the filament. The anther is made up of lobes or sacs that contain pollen grains, which are the male gametes. When the pollen is mature, the sacs split open to release the pollen grains into the air or onto an insect that will transport the pollen to the female reproductive structures of the flower.

Therefore, option b, "anther," is the correct answer to the question.

Seeds offer the embryo protection, nourishment, and a mechanism to maintain dormancy for tens or even thousands of years, ensuring that germination can occur when growth conditions are optimal. Seeds therefore allow plants to disperse the next generation through both space and time.

Pls mark as brainliest answer if it helps you

Answer:

C. Seeds protect the plant embryo and its food source

Explanation:

took the test

New allele is the Heterozygous one which is different from parents.

T: 0.6 t: 0.4 is the new allele frequency.

Using the formula , 2Tt

So, their frequency = 2Tt

= 2×0.75×0.25

= 0.375 Htz

T: 0.6 t: 0.4

What is the homozygous dominant genotype?

An organism with two dominant alleles for a trait is claimed to have a homozygous dominant genotype. Using the attention color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is claimed to have a heterozygous genotype.

What is homozygous condition?

Homozygous describes the genetic condition or the genetic state where a private has inherited the same DNA sequence for a particular gene from both their biological mother and their biological father. It's often utilized in the context of disease.

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Answer:

No, la evidencia geológica indica que el aumento de oxígeno (O2) durante este período fue producto de un fenómeno conocido como la gran oxidación  

Explanation:

El Proterozoico fue un período geológico que comenzó aproximadamente 2.500 millones de años atrás y finalizó hace aproximadamente 540 millones de años. La Gran Oxidación fue un catástrofe medioambiental que ocurrió aproximadamente 2.400 millones de años atrás, este fenómeno causó la extinción masiva de una importante cantidad de microorganismos anaeróbicos. Si bien el oxígeno comenzó a ser generado como producto de la fotosíntesis antes del Proterozoico, se sabe que los niveles de O2 aumentaron drásticamente debido a la saturación de los sumideros químicos (oxidación de azufre y hierro) y al aumento en el enterramiento del carbono (es decir, debido a procesos abióticos). De este modo, el excedente de oxígeno comenzó a acumularse en la atmósfera, siendo tóxico para aquellas especies anaeróbicas que dominaron durante este período y causando la extinción masiva de estas especies.

Here's the code to count the number of sea turtles for each species using a dictionary in Python 3, assuming that the sea turtle monitoring project has collected the data and stored it in a list called `observed_turtles`:```
observed_turtles = ['loggerhead', 'green turtle', 'loggerhead', 'kemp\'s ridley', 'leatherback', 'loggerhead', 'green turtle', 'green turtle']
counts = {}
for turtle in observed_turtles:
   if turtle in counts:
       counts[turtle] += 1
   else:
       counts[turtle] = 1
print(counts)
```
Output:```
{
   'loggerhead': 3,
   'green turtle': 3,
   "kemp's ridley": 1,
   'leatherback': 1
}
```Note that `\'` is used to escape the single quote character in `kemp's ridley` so that the string is not prematurely terminated.

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Answer:

Explanation:

some ways Scientists solve problems are that they follow the 7 steps of the scientific method which are problem, research, hypothesis, experiment, collect data ,conclusion, and repeat the process

Answer:  observation, hypothesis, experiment, and conclusion.

Explanation:

Answer:

Explanation: since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, and anaphase.

The genetic code is nearly identical in all forms of life, with the exception of a few minor variations in some bacteria like Mycoplasma and lineages descended from bacteria like mammalian mitochondria.

The genetic code, which is the arrangement of nucleotides in ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) that determines the order of amino acids in proteins. Proteins are not directly derived from DNA, despite the fact that the linear nucleotide sequence in DNA contains the data for protein sequences.

Nearly everyone has access to the genetic code. The genetic code of every living thing on Earth, with a few minor exceptions, is the same.

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After 2 months the plans will cost the same when Jeremiah went to the gym.

Let letter C represent the costs for the month

First, the fee for the first option = $40The charges, C,  for the first option = $25 per month

The equation for the first option = 40 + 25C

The initial fee for the second option is $20 While the charge for the second option is 35$ per month

The equation for the second option = 20 + 35C

Finding when the plan will cost the same.40 + 25C = 20 + 35C

Collecting like terms

20 = 10CC = 2

Therefore, the two plans will be the same after 2 months.

In summary, Jeremiah would realize the fitness club with two different plans, would cost the same after 2 months.

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A haplotype refers to a group of alleles that are inherited together on the same chromosome.

Specifically, a haplotype is a set of genetic variations, including SNPs (Single Nucleotide Polymorphisms), that occur together on a single chromosome. The variations within a haplotype tend to be inherited together because they are located close to each other on the chromosome and have not undergone recombination. Haplotypes can be used to identify patterns of inheritance of genetic traits and can be useful in studies of genetic variation and disease susceptibility. Additionally, haplotypes can provide information on ancestry and evolutionary relationships among populations.

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Complete Question

Which description best defines a haplotype?

A. The sequence of all the DNA bases contained on a single chromosome within an individual organism.

B. A group of alleles that undergo a change in nucleotide sequence from mistakes in DNA synthesis.

C. The sequence of RNA nucleotides that comprise a newly synthesized mRNA strand after transcription.

D. A group of alleles in close association on a chromosome that are likely to be inherited together.

For a chemical reaction to take place, molecules need to possess enough potential energy to surpass the activation energy barrier. To overcome the activation energy barrier, molecules need to acquire enough energy through various means.

Activation energy is defined as the minimum energy threshold that must be reached for a reaction to proceed. It is the energy needed to break the existing chemical bonds in the reactant molecules and form new bonds in the product molecules.

To overcome the activation energy barrier, molecules need to acquire enough energy through various means, such as an increase in temperature, the presence of a catalyst, or exposure to electromagnetic radiation. These energy sources provide the molecules with the necessary activation energy to break the existing bonds and initiate the reaction.
Once the activation energy is surpassed, the reaction can proceed spontaneously as the newly formed bonds stabilize the products. It is important to note that the activation energy barrier serves as a protective mechanism, preventing unwanted reactions from occurring at low temperatures or in the absence of suitable conditions.
In summary, molecules require sufficient potential energy to surpass the activation energy barrier, enabling the reaction to proceed. This energy can be obtained through temperature changes, catalysts, or exposure to electromagnetic radiation.

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The human phenotypic traits that are shaped by multiple genes working together and are influenced by environmental factors are referred to as polygenic traits. Polygenic traits are traits that are influenced by more than one gene and are also affected by environmental factors. Polygenic traits include skin color, eye color, height, weight, and many other traits in humans.

Humans are complex organisms, and their phenotypic traits are the result of a complex interplay between genetics and the environment. Polygenic traits are influenced by a large number of genes, each of which contributes to the trait in a small way. Each gene works in concert with other genes, as well as with environmental factors, to shape the final phenotype.

Polygenic traits are often difficult to study because they are influenced by multiple genes and environmental factors. They can also be influenced by epigenetic modifications, which can affect gene expression without altering the DNA sequence. Despite these challenges, researchers continue to study polygenic traits to gain a better understanding of the complex interplay between genes and the environment.

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Answer:

1:2:1

Explanation:

This question involves a gene coding for the possession or not of the muscle that confers the ability to roll one's tongue. The allele for ability to roll (R) is dominant over the allele for non-ability to roll (r).

According to this question, two heterozygous rollers (Rr) were crossed. The following gametes will be produced by each parent;

Rr - R and r.

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced: RR, Rr, Rr, and rr.

Since RR (1), Rr (2) and rr (1) are of three different genotypes, the genotypic ratio of the offsprings will be 1:2:1.

Though the parents have blood group A and B , still their son is of blood group and colorblind aswell is possible due to codominance.

What is codominance?

In terms of genetics, codominance is a sort of inheritance in which two distinct expressions (alleles) of the same gene result in distinct features in a person.

Red blood cells with blood type A have a specific antigen (class of protein) on their membrane. Red cells in type B blood have a unique antigen on their membrane, but neither is present in type O blood.

The type O gene is "recessive" because if you only have one copy of the O gene and one copy of the A gene, you will still have A antigens on your cell membranes. You must have two O parent cells in order to belong to group O. However, group O continues to be more prevalent merely because it is the ancestor form.

The X chromosome is where color blindness is most frequently inherited as a recessive trait. In genetics, this is referred to as X-linked recessive inheritance. As a result, men tend to be affected by the illness more frequently than women (8% male, 0.5% female). Males only get one X chromosome, thus even while the recessive trait is present, there isn't another X chromosome that would provide a dominant trait of normal color vision. On the other hand, most female offspring have a propensity to develop into what are known as "carriers," which are people who have the recessive gene (color blindness) as well as the dominant gene (normal color vision), resulting in the expression of the dominant feature.

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