Life as we know it depends on the genetic code: a set of codons, each made up of three bases in a dna sequence and corresponding mrna sequence, that specifies which of the 20 amino acids will be added to the protein during translation.imagine that a prokaryote-like organism has been discovered in the polar ice on mars. interestingly, these martian organisms use the same dna → rna → protein system as life on earth, except thatthere are only 2 bases (a and t) in the martian dna, andthere are only 17 amino acids found in martian proteins.based on this information, what is the minimum size of a codon for these hypothetical martian life-forms?

Answers

Answer 1
Answer:

The right answer is 5.

To answer this question, we must think in the same way as the demonstration showing that codons of 3 are necessary to encode an amino acid (in terrestrial species).

To calculate the number of nucleotides in a codon in these new species: we should use the law of:

nucleotides existing ^ (number of nucleotides in a codon) = number of codons.  (in order to have the number of possible codon combinations)

The number of codons must be greater than or equal to the number of amino acids (17).

2 ^ 1 = 2 (<17)

2 ^ 2 = 4 (<17)

2 ^ 3 = 8 (<17)

2 ^ 4 = 16 (<17)

2 ^ 5 = 32  (> 17)

32> 17 so the number of nulceotides in a codon must be 5.

Answer 2
Answer:

Final answer:

The minimum size of a codon for the hypothetical Martian life-forms, which use only two bases (A and T) and have only 17 amino acids in their proteins, should be five bases. This size is needed to generate a minimum of 17 different codons.

Explanation:

The question is asking for the minimum size of a codon in these hypothetical Martian life-forms that use only two bases (A and T) in their DNA and have only 17 amino acids in their proteins. To analyze this, we must comprehend how codons function. A codon is a sequence of nucleotides in RNA that codes for a specific amino acid in a protein. In life on Earth, each codon is made up of three bases (each base can be A, T, C, or G), which makes for a total of 4^3 = 64 possible codons coding for 20 different amino acids.

However, in the Martian organisms, there are only two available bases (A and T) for constructing codons. In order to generate at least 17 different codons to code for the 17 different Martian amino acids, each Martian codon would have to be made up of at least 5 bases (since 2^4 = 16 is not enough, and 2^5 = 32 would be sufficient).

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Which of the following are gene products?mRNA
tRNA
tRNA synthetase
promoter
allele
nucleic acid

Answers

Answer:

I think its tRNA

Explanation:

You are most likely to see button mushrooms at a salad bar. These mushrooms are a type of _____ fungi. club; sac; zygote forming; chytrid; imperfect

Answers

Correct answer: A). Club

Club fungi are heterotrophic and it can be saprophytes. The enzyme present in the club fungi decompose the leaves, wood and other organic materials. It can be eaten by other fungi and bacteria.

It is distinguished from the other fungi by the presence of a club-shaped organ called as a basidium. Puffballs, mushroom and shelf fungi are the members of this group.

Hence, the correct answer would be option A.




These mushrooms are a type of club fungi.

How do jellyfish move ?

Answers

Most jellyfishes  use a form of jet propulsion to move through seawater. ... This is what most jellyfish do. They squeeze their bodies in order to push jets of water from the bottom of their bodies to propel the jellyfish forward. Now check out another method of jellyfish propulsion, used by the comb jellyfish.

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Which of the following statements, if true, would support evolution and the idea that all life comes from a common ancestor?The bodies of different species are similar.

The development of different species are similar.

The DNA of different species are similar.

Experiments can form the molecules of life out of chemicals.

Fossils show a history of life that gets more complex.

Fossils show different stages of evolution in a species.

The fossil record is backed up by the geological record.

Answers

The DNA of different species are similar. True

Fossils show a history of life that gets more complex. True

Fossils show different stages of evolution in a species. True

The fossil record is backed up by the geological record. True

All the other statements would be false.

Answer:

I think that the answer is 3567

What is the energy equivalent of an object with a mass of 1.05 g?

Answers

The equivalent energy of an object given its mass is calculated through the equation,
                              E = mc²
where c is the speed of light (3 x 10^8 m/s)
Substituting the known values,
                             E = (1.05 g/ 1000) (3 x 10^8 m/s)²
                                E = 9.45x10^13 J

The equivalent energy of an object given its mass ,  through the equation,

                            E = mc²

where c is the speed of light (3 x 10^8 m/s)

Substituting the known values,

                            E = (1.05 g/ 1000) (3 x 10^8 m/s)²

                              E = 9.45x10^13 J

What are the 4 main energy?

  • Potential energy
  • Nuclear energy
  • Chemical energy
  • Mechanical energy

Thus, 9.45x10^13 J is answer.

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which glomerular lesion is characterized by thickening of the flomerular capillary wall with immune deposition

Answers

The glomerular lesion that is characterized by thickening of the glomerular capillary wall with immune deposition is called membranous glomerulonephritis.

In this condition, there is a buildup of immune complexes, which are composed of antibodies and antigens, in the glomerular capillary walls. This immune deposition leads to inflammation and thickening of the walls, impairing the filtration function of the kidneys.

The thickening of the glomerular capillary wall in membranous glomerulonephritis is caused by the accumulation of immune complexes in the subepithelial space. These immune complexes can be formed due to various underlying causes, such as autoimmune diseases, infections, medications, or certain cancers. The immune complexes trigger an inflammatory response, attracting immune cells to the glomerular capillary walls and causing damage.

As a result of the thickening of the glomerular capillary wall, the normal filtration process in the kidneys is disrupted. This can lead to proteinuria (presence of excess protein in the urine), hypoalbuminemia (low levels of albumin in the blood), and edema (swelling) in the affected individual. Over time, the chronic inflammation and scarring can further impair kidney function and may progress to chronic kidney disease.
To diagnose membranous glomerulonephritis, a kidney biopsy is typically performed to examine the glomeruli under a microscope. The presence of thickened glomerular capillary walls with immune deposits confirms the diagnosis.



Treatment for membranous glomerulonephritis aims to reduce inflammation, control symptoms, and preserve kidney function. Depending on the underlying cause and severity of the condition, treatment options may include medications such as immunosuppressants, angiotensin-converting enzyme inhibitors (ACE inhibitors), or angiotensin receptor blockers (ARBs). In some cases, individuals may require supportive measures such as dietary modifications and fluid restriction.
In summary, membranous glomerulonephritis is a glomerular lesion characterized by thickening of the glomerular capillary wall due to immune deposition. It can result in kidney dysfunction and is typically diagnosed through a kidney biopsy. Treatment options focus on reducing inflammation and preserving kidney function.

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Membranous, the thickening of the glomerular capillary wall characterizes only membranous lesions