DNA code is TAC ACA CGA GGA GGG TCT AAA ATT what is the sequence of amino acids?bio​

If you used 10,000 rpm for every centrifugation step during the DNA extraction procedure with several samples, it may have affected the quality and quantity of the DNA obtained.

Different centrifugation speeds are required for different steps in the extraction process, such as to separate cellular debris and isolate DNA. Using the same speed for every step may lead to loss of DNA or contamination with other cellular components.

It is recommended to repeat the DNA extraction procedure using appropriate centrifugation speeds for each step. This will ensure the highest quality and quantity of DNA from the samples. It is also important to note that DNA extraction is a critical step in any downstream analysis, and careful attention should be paid to all steps in the protocol to obtain reliable results.

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The species that requires the least amount of nutrients in order to grow is Lemna gibba as compared to Lemna polyrhiza. The species that requires the least amount of nutrients in order to grow is Lemna gibba as compared to Lemna polyrhiza.

Lemna gibba is a free-floating aquatic plant belonging to the duckweed family, that can be found in still or slow-moving freshwater habitats. It is known for its small, oval-shaped leaves that range in size from 3 to 5 mm.Lemna gibba is commonly used as a bioindicator for various metals like lead and copper, due to its ability to easily absorb the heavy metals present in the water. This duckweed species is also known for its high starch content, which makes it a great source of biomass for bioenergy production or as a potential feedstock for other bioproducts.Lemna gibba is adapted to grow in nutrient-poor environments, which means that it requires only a small amount of nutrients in order to grow.

This is due to its unique physiology, which allows it to effectively absorb nutrients from the water and store them in its tissues. As a result, Lemna gibba has been used in various phytoremediation projects to help clean up polluted waterways by removing excess nutrients like nitrogen and phosphorus from the water.This species is also known for its ability to reproduce quickly, allowing it to colonize new areas rapidly and compete with other aquatic plants for resources. This ability has made Lemna gibba a popular choice for research into plant growth and development, as well as in the development of new phytoremediation techniques.

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If a cell has 40 chromosomes, the number of centromeres will be 40 as well (option D)

The centromere is located in the middle of the chromosomes. It is beneficial to join two chromosome arms and divides a chromosome into two short arms. During metaphase, the chromosomes of the cell align themselves in the center of the cell in a cellular "tug of war." Sister chromatids are chromosomes that have been replicated and remain linked at a central point called the centromere.

As a result, the correct answer is (D) 40. Because the chromosomes are aligned in a straight line during metaphase, there is no change in the number of chromosomes.

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Answer:

Many individuals consider that Archaeopteryx would have been the first bird, however, many paleontologists are against it. The findings of many fossils of Archaeopteryx have revealed that though the creature exhibited wings, the majority of its characteristics were of reptile, like the existence of full teeth set. Apart from this, the wings formation of the creature demonstrated that it was not completely capable of flying.  

No matter what, the presence of wings makes them closely associated with the modern time birds. Thus, it can be concluded that Archaeopteryx could be considered as an intermediate between the reptiles and the birds and is a precursor to the modern-day birds' evolution.  

Answer:

A. Empathy

Explanation:

i hope it helps:)

Deforestation increases the risk of floods in an area tree roots improve soil water retention.

When deforestation takes place, the top layer of soil can be dislodged – this is also known as soil erosion.

When the top layer of soil is unstable, it is unable to retain any of the water that falls on it, resulting in increased surface run-off, which, in turn, increases the risk of flooding.

Thus, option "D" is correct.

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Answer: weak hydrogen bonds

hope that's right :)

Answer:

tribes is the answer

Answer:

Nudation

migration

ecesis

competition

reaction

stabilization

Explanation:

Answer:

I think its A

Explanation:

I put it and got an okay grade

Organisms can adapt to different environments, however, this usually occurs over generations and at the population level. At the level of the individual, an example is mutations, in which the offspring may have different characteristics from the progeny. However, these adaptations of the offspring will either be detrimental or give an advantage depending on the environment in which it is

Because these changes occur gradually over generations, individual organisms cannot increase their fitness on their own. And although there are special cases in which an organism can adapt to environmental changes through a phenomenon called phenotypic plasticity, this is not common in all species and is not due to a genetic change in the individual. Therefore, the answer would be B (sometimes, it depends on where they are located if the adaptation is helpful or not).

The ratio of 1:1:1:1 represents a dihybrid cross between two heterozygous parents for two different traits. The expected phenotypic ratio for this cross is:

Phenotype                        Ratio                         Expected Number

Dominant for trait 1 and          9:3:3:1          (9/16) x 900 = 506.25          trait 2

Dominant for trait 1 and           9:3:3:1                  (3/16) x 900 = 168.75    recessive for trait 2

Recessive for trait 1 and      9:3:3:1               (3/16) x 900 = 168.75        dominant for trait 2

Recessive for trait 1 and         9:3:3:1              (1/16) x 900 = 56.25        trait 2

Therefore, the expected number of each phenotype is:

Dominant for trait 1 and trait 2: 506.25

Dominant for trait 1 and recessive for trait 2: 168.75

Recessive for trait 1 and dominant for trait 2: 168.75

Recessive for trait 1 and trait 2: 56.25

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Answer:

Explanation:

Proteins are required for tissue to grow and repair themselves

Answer:

Yep

Explanation:

Without them, it would be impossible to build, repair or even maintain muscle tissue.

To answer your question about the example used to show what happens when you change the DNA, which changes an amino acid in a protein:

The example used is a point mutation, specifically a missense mutation. In this case, a single nucleotide in the DNA sequence is changed, causing a change in the corresponding amino acid in the protein. This alteration in the amino acid sequence can potentially affect the structure and function of the protein.

1. A single nucleotide in the DNA sequence is changed (a missense mutation).
2. This change results in a different mRNA codon during transcription.
3. During translation, the altered mRNA codon specifies a different amino acid.
4. The protein's amino acid sequence is altered, potentially affecting its structure and function.

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C-14 half-life is the time it takes for half of the isotope mass to decay into its daughter form. Line graphs are the best way to represent data about half-lives and the amount of isotope (gr).

Carbon 14, also known as radiocarbon, is a radioactive carbon isotope.

Isotopes are the atoms of the same element -carbon- that vary in neutrons and, hence, in their massic number. They are alternative forms of the same element.

The radioactive C14 nucleus contains 6 protons and 8 neutrons and has a half-life of 5730 years.

The term half-life is a reference. It means that an organism that has been dead for 5730 years has half the C14 amount or concentration than the same organism had when it was alive.

In other words, the half-life is the time it takes for half the mass of this isotope to become its daughter form.

Knowing the half-life of an element is useful to determine the age of the dead matter.

C14 is used in radiocarbon dating techniques or methods to estimate the age of fossils. This is a reliable technique used for dating organic samples that are less than 50,000 years old.

An easy way of representing the change in mass of the isotope through the years is to make a line graph, which is easy to interpret and compare the information.

In this example, our line graph must represent the number of half-lives related to the amount of parent isotope in grams.

The table details the years and the amount of isotope. So, by kowing the half-life of C-14, we can get how many half-lives there are.

5,700 years ---------- 1 half-life

11,400 years--------- X = 2 half-lives ⇒ (5700 x 2) or (11,400/5,700)

17,100 years -------- X = 3 half-lives ⇒ (5700 x 3) or (17,100/5,700)

22,800 years ------ X = 4 half-lives ⇒ (5700 x 4) or (22.800/5,700)

28,500 years ------ X = 5 half-lives ⇒ (5700 x 5) or (28,500/5,700)

34,200 years ------ X = 6 half-lives ⇒ (5700 x 6) or (32,200/5,700)

39,900 years ------ X = 7 half-lives ⇒ (5700 x 7) or (39,900/5,700)

45,600 years ------ X = 8 half-lives ⇒ (5700 x 8) or (45,600/5,700)

51,300 years ------- X = 9 half-lives ⇒ (5700 x 9) or (51,300/5,700)

Now, we can make a new table,

Number of half-lives       Carbon-14 (g)

                0 ..............................10,000

                 1 ...............................5,000

                 2................................2,500

                 3 ................................1,250

                 4 ................................  625

                 5 ................................  312

                 6 ................................  156

                 7 .................................   78

                 8 .................................   39

                 9 .................................   20        

Finally, we can make the line graph using the data of this new table. You will find it in the attached files.

In conclusion, the best graph you can make is a line graph, and if they ask you to graph the number of half-lives and give you the number of years, you can just make the conversion using the half-life of the isotope.

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Answer: We can help endangered species through conservation. This means doing things – maybe even changing the way we do things – to make sure plants and animals are protected

Explanation: Some of the most endangered animals in the world include the giant panda, the Siberian tiger, the Sumatran rhinoceros, the right whale, and the polar bear.

If a person is homozygous for the Δ32 allele of the CCR5 gene, it means they have two copies of the Δ32 allele (one from each parent). Therefore 4 of the daughter cells produced by meiosis will have the Δ32 allele.

In meiosis, the homologous chromosomes (each carrying one allele) are separated into daughter cells.
1. The individual has two copies of the Δ32 allele (homozygous) in their diploid cells.
2. Meiosis I occurs, where homologous chromosomes separate into two haploid cells.
3. Both haploid cells receive one Δ32 allele each.
4. Meiosis II occurs, where sister chromatids separate into four haploid daughter cells.
5. Each of the four daughter cells receives one copy of the Δ32 allele.

So, the answer is (c) 4, as all four daughter cells produced by meiosis will have the Δ32 allele.

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Answer:

D ducks from different families will not feed within 10 feet of one another.

Explanation:

this is the only investigation he could do in one class period all of the other ones will take days or years

central vacuole  

bhubyigty

Answer:

Central vacuole.

Explanation:

A central vacuole is an organelle that is full of water. This vacuole is bounded by a single membrane and functions as a combination of reservoir, waste dump, storage region, and keeps the cell in shape.

The correct order of the steps are: Introduction of labeled probe > Denaturation of the chromosomes > Immobilization of mitotic cells > Hybridization > Detection of the fluorescent label > Identification of the chromosome and location of the gene.

Here is the correct ranking of the stages of the procedure using fluorescence to locate a gene of interest:

Introduction of labeled probe: Synthesis of a single-stranded probe molecule, which is complementary to your gene and labeled with a fluorescent marker.

Denaturation of the chromosomes: Denaturation of the chromosomal DNA to separate the double-stranded DNA into single-stranded DNA.

Immobilization of mitotic cells: Preparation and immobilization of mitotic cells onto a microscope slide.

Hybridization: Hybridization of the labeled probe with the denatured chromosomal DNA, allowing the probe to bind to the complementary sequence in the chromosome.

Detection of the fluorescent label: Use of a fluorescence microscope or other fluorescence detection methods to visualize the location of the labeled probe on the chromosomes.

Identification of the chromosome and location of the gene: Determination of the chromosome and precise location of the gene of interest based on the fluorescent signal from the labeled probe.

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Physiological events such as sensory perception, neural processing, and motor response occur between presentation and the pressing of the hand switch.

When a stimulus is presented, sensory receptors in the body detect the stimulus and convert it into electrical signals. These signals are then transmitted to the brain through sensory pathways. In the brain, the signals are processed and interpreted, allowing for the perception and recognition of the stimulus. Once the stimulus is recognized, motor commands are generated in the brain and transmitted through motor pathways to the muscles responsible for hand movement. These commands initiate muscle contractions, leading to the pressing of the hand switch.

Overall, this sequence of physiological events involves sensory input, neural processing, and motor output, enabling the individual to perceive the stimulus and respond accordingly.

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The correct answer is a) Abdominal and c) Gluteal muscle groups are responsible for maintaining the stability of the spine and pelvis.

The muscle groups responsible for maintaining the stability of the spine and pelvis are the abdominal and gluteal muscles. The abdominal muscles, including the rectus abdominis, transverse abdominis, and obliques, play a crucial role in supporting the spine by providing stabilization and promoting proper posture. They also contribute to the movement and flexibility of the trunk, allowing for a range of motions, such as bending and twisting.

The gluteal muscles, consisting of the gluteus maximus, medius, and minimus, work together to stabilize the pelvis and support the spine during various activities, such as walking, running, and lifting. These muscles also contribute to hip movement and overall lower body strength.

In conclusion, both the abdominal and gluteal muscle groups are vital in maintaining the stability of the spine and pelvis, ensuring proper posture, and providing support during daily activities. It is essential to keep these muscles strong and flexible through regular exercise and stretching to maintain optimal spinal health and prevent injuries.

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Answer:

This is true

Explanation:

Because coal has been around since nearly the beginning of time

Answer:

true

Explanation:

Coal was formed millions of years ago, before the dinosaurs. Coal is called a fossil fuel because it was made from plants that were once alive! Since coal comes from plants, and plants get their energy from the sun, the energy in coal also came from the sun. The coal we use today took millions of years to form.

1. The law of conservation of energy states that energy cannot be created nor destroyed. Therefore, the correct answer is A.

2. The law of conservation of mass states that matter cannot be created nor destroyed. Therefore, the correct answer is C.

3. Raymond Lindeman is consideres the founder of ecosystem ecology. Therefore, the correct answer is B.

4. Trophic level is a position in a food chain, a food web, or an ecological pyramid that is occupied by a group of organisms. Therefore, the correct answer is D.

Answer:

1. The digestive system of a flatworm is comprised of a single big solitary tube. Food is taken in from one end of the system, digested, and nutrients are absorbed within, while waste is ejected at the other end. Mechanical digestion takes place in the gizzard.

In humans, however, food goes significantly further through the convoluted tubules after ingestion, and food remains in the stomach for a longer period of time. Food is mechanically digested in the mouth, then transferred through the esophagus, stomach, small intestine, and large intestine, and waste leaves through the anus.

2. Producers, primary consumers, secondary consumers, and tertiary consumers.

3.   CAPITALISM: Among the most common criticisms of capitalism claim that it is intrinsically exploitative, alienating, unstable, and unsustainable, and that it causes vast economic inequalities, commodifies individuals, is anti-democratic and leads to the degradation of human rights.

HAZARDOUS WASTE: Because it pollutes every component of the environment, including air, water, and land, hazardous waste might be considered a crime by our civilization. This has the potential to cause a major issue. What it does is affect the natural lifestyle of many species that comprise the ecosystem, perhaps resulting in a tragedy for all life on Earth.

Answer: A

Explanation: