Answer:
B. The protein would be made of the wrong nucleic (amino) acids.
Concepts:
Proteins are made up of different amnio acids. A good analogy is that a protein is like a train, and the individual cars are amnio-acids. Different combinations of cars, in different orders give different trains. In the same way, different amnio-acids, in different combinations give different kinds of proteins. Digestion, be it in animals or humans, results in the breakdown proteins into their amnio acid components. The intestine absorbs the individual amnio acids and the body ships these amnio acids to the cells. On top of that, some very special train cars are made inside the rail-yard, in the same way some very special amino acids can be made inside our cells. Cellular processes rearrange the amnio acids in new ways to make new proteins that are used by the animal or human for various bodily functions. So think of the cell as the railyard where new trains (proteins) are made but reassembling the cars (amnio-acids) into new and different combinations. Proteins perform a vast array of functions within living organisms, including catalyzing metabolic reactions, replicating DNA, responding to stimuli, and transporting molecules from one location to another. Proteins are way more than just building muscle.
Amino acids are the building blocks of proteins. Imagine amino acids like lego blocks, you can assemble them into any shape and size. Amino acids are all identical, except for a single “side group”. This side group can be a single hydrogen, a complex carbon chain, some nitrogen groups, etc etc. These give the amino acids different properties, which gives the proteins a function. Any protein you eat will be broken down into its base amino acid components. It doesn’t matter if you eat chicken, peas, beef or mushrooms, you will still get the same amino acids, which your body can use to make any protein. The lego structure will be split into individual blocks, which your body will assemble into functional proteins. Eating “collagen protein” for smooth skin doesn’t work, Nor eating “special proteins” for some magic purpose. In fact, overeating one single source of protein will harm you. Some plants like wheat don’t have the same ratio of proteins as humans, so if you only ate wheat you would be short of some amino acids. It’s like disassembling a black lego boat and expecting to build a blue sphere - impossible.
What is transcription in biology?
Transcription is the process through which DNA is utilized as a template to create a complementary RNA strand in biology. This is the initial stage of protein synthesis or information transfer within a cell. DNA contains genetic information, which is subsequently transferred to RNA during transcription before being used to control protein synthesis during translation. Messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA are the three forms of RNA that may be generated (rRNA). Pre-commencement, initiation, elongation, and termination are the four phases of transcription.
The RNA polymerase component initiates pre-initiation by attaching to a promoter region situated at the 5' end of a DNA strand. The DNA strand is denatured, which uncouples the two complimentary strands and allows the enzyme to access the template strand. The partner strand is the opposite strand. Promoter sequences on the DNA strand are critical for transcriptional start. Promoter sequences are particular sequences of the ribonucleotide bases that make up the DNA strand (adenine, thymine, guanine, and cytosine), and the identification of some of these motifs, including TATAAT and TTGACA in prokaryotes and TATAAAA and GGCCAATCT in eukaryotes, has been identified. These are referred to as cis-acting elements. In eukaryotes, an extra transcription factor is required to assist RNA polymerase binding to the promoter region.
An undetected mistake in DNA transcription might result in a change in the amino acid sequence of the protein generated as a result of the transcription. If there is a change in the amino acid sequence, it might either be a detriment or a benefit to the organism.
Thank you,
Eddie
