How is a scientific theory developed?

Answers

Answer 1

Answer:

Answer:

It is developed by a scientific method with observation and research

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You have a mixture of three proteins X, Y, and Z.a. X is positively charged, has a mass of 100 kDa, it binds sugars.b. Y is positively charged, has a mass of 200 kDa, it does not bind sugars.c. Z is negatively charged, has a mass of 100 kDa, it does not bind sugars.What will be the most efficient method to purify protein X from the mixture of X, Y, and Z?i. washingii. dryingiii. ion-exchange chromatographyiv. gel filtration chromatographyv. affinity chromatography
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PLEASE HELP!! i will mark brainliestWhich argument best explains the charge of an atomic nucleus? a. an atomic nucleus is positively charged because it is composed of neutrons b. an atomic nucleus is positively charged because it is composed of protonsc. An atomic nucleus is negatively charged because it is composed of electronsd. an atomic nucleus is negatively charged because it is composed of neutrons
You have a culture of yeast that is at a concentration of 6.74 x 10^6 cells/ml. You dilute the sample 1:100, and then 1:100 again, and finally you dilute the sample an additional 1:3. You add 0.1 ml of the final dilution to a spread plate. 1. Assuming that most of the cells in the original culture were living, how many CFUs do you expect to count on your spread plate the next day?

The cell cycle of yeast cells grown in the nutrient-poor environment is approximately what percent of the cell cycle of yeast cells grown in the nutrient-rich environment.

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The cell cycle of yeast cells grown in the nutrient-poor environment is approximately 168 % of the cell cycle of yeast cells grown in the nutrient-rich environment. Hence option 1 is correct.

What is cell cycle?

Cell cycle is defined as the cascade of cellular activities that lead to cell division into two daughter cells. The primary purpose of the cell cycle is to accurately divide the enormous amount of DNA found in the chromosomes into two daughter cells that are genetically identical. A cell spends the majority of its time in what is known as interphase, where it develops, duplicates its chromosomes, and gets ready to divide.

The interphase and M-phase are the two phases that make up the cell cycle. About 90% of the cycle is made up of interphase, during which the cell develops and copies its chromosomes in order to divide. Undifferentiated ESCs have a G1 and S cell cycle percentage of 15-20% and 60–70%, respectively, however as the ESCs differentiate, this ratio changes.

Thus, the cell cycle of yeast cells grown in the nutrient-poor environment is approximately 168 % of the cell cycle of yeast cells grown in the nutrient-rich environment. Hence option 1 is correct.

To learn more about cell cycle, refer to the link below:

brainly.com/question/15876101

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Answer: 168

Explanation:

What is the molecular weight of Br-

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Answer: 79.904

Explanation:

When wind drips its load of sand, it can form a hill called a

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Depositions of sand are called sand dunes. Hope this helps! :)

It's called a sand dune

As a ribosome translocates along an mRNA molecule by one codon, which of the following occurs? a. The polypeptide enters the E site. b. The tRNA that was in the A site departs from the ribosome via a tunnel. c. The tRNA that was in the P site moves into the A site. d. The tRNA that was in the A site moves to the E site and is released. e. The tRNA that was in the A site moves into the P site.

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Answer:

e. The tRNA that was in the A site moves into the P site.

Explanation:

Translation comprises 3 steps :

1) Translation initiation

2) Translation elongation

3) Translation termination

Translocation step is a part of translation elongation step which is followed by the peptidyl transferase activity of ribosome. Due to the peptidyl transferase activity of ribosome, the N terminal of newly entered amino acid (amino acid attached with tRNA i.e. aminoacyl tRNA or charged tRNA) at 'A site' attacks the C terminus of amino acid which is already present in the 'P site' of complex and amide bond is formed between amino acids leading to elongation of peptide chain. Then after, the uncharged tRNA which is present in the 'P site' is expelled out the complex via 'E site' while the tRNA that was in 'A site' moves into the 'P site'.

Which change to the ramp would be the best way to increase its medical efficiency (ME), and why?

Answers

Answer:

make it lower

Explanation:

because then it would be easier to maneuver

Which of the following is (are) not the function (s) of the skeletal system: support, storage of minerals, strength, or production of blood cells (hematopoiesis)?

Answers

Answer:

strength

Explanation:

Skeletal system of the human body has 206 bones. Human skeleton is divided into appendicular skeleton and axial skeleton.

The skeletal system provide support to the other parts of body, chemicals like calcium are stored in the skeletal system and red bone marrow is the site of hematopoiesis. The skeletal system doesnot provide strength because muscles are mainly involved in providing strength to the body.

Thus, the correct answer is option (3).

Other Questions

Chromosome iv in drosophila is a very small chromosome and carries a tiny amount of genetic material. fruit flies that are trisomic for chromosome iv have no apparent phenotypic abnormalities, and they retain their fertility. among the genes on chromosome iv is one for which a recessive allele ey produces the "eyeless" phenotype. a male that is trisomic for chromosome iv and has the genotype + + ey is crossed to a diploid eyeless female with the genotype eyey.

What percent of species will be gone in 100 years

Which situation probably involves autoantibodies?

Proteins....A have a primary structure made from a string of anticodons.B. have a primary structure made from a string of codons.C. have a primary structure made of a string of amino acids.D. have a primary structure made from a string of genes.