Answer:
False
Explanation:
Constellations are the group of stars with certain pattern. Constellations are seen during specific period of year due to revolution of earth around the Sun. Sun blocks some constellations during specific part of year, making them invisible from earth.
Example: Cygnus and Sagittarius are the summer constellations that are visible during summer months while Taurus and Orio are the winter constellations.
This is true
The Human Genome Project was an international biological project that was created to determine the sequence of the human DNA, and locating and mapping the entire genes of the human genome in terms of structure and function. The Human Genome Project allows researchers to discover disease causing genes and possibly prevent or treat them. In 2001, the Human Genome Project researchers discovered a new tumor suppressor gene on human chromosome 7 which is involved in prostate and breast cancer. Also in 2000, researchers in Japan and Germany discovered the genetic code of human chromosome 21 and was identified to be involved with diseases such as amyotrophic lateral sclerosis, Down syndrome and Alzheimer's disease.
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.
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.
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).
#SPJ3
Well allliving organisms contain genetic information, stored in DNA and RNA molecules,which directs the functions of cells.
The general coding and structureof these molecules is universally shared by all organisms. Questions about theorigin of these molecules are fundamental to our understanding of the origin oflife on Earth.
Experimentslike the one conducted by Miller and Urey demonstrated that organic moleculescould have formed spontaneously in Earth's early atmosphere, and smallermolecules could bond together to build large organic molecules. Somescientists hypothesize that some of the first large organic molecules to formand self-replicate were RNA molecules, with DNA molecules forming much later. This is called the RNA worldhypothesis.
These early RNA molecules were probably smaller than the RNAmolecules in our cells today. They would have contained the codes for buildingspecific protein molecules from the amino acids present on Earth at that time.Proteins are necessary components of all living cells.
It means that all of us- every living creature- was built off the same genetic code.