Evaporation is the process of turning water into gas . Condensation is the process of turning gas into a liquid. Sublimation is the process of a solid going to a gas without a liquid phase.
Explanation:
an allele is an alternative form of a particular gene whereas a trait is the character that is determined by the allele.
I think it's 83 million base pairs.
Progressive degeneration of the retina that affects night and peripheral vision is known as retinitis pigmentosa.
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What is retinitis pigmentosa?</h3>
- A collection of uncommon eye conditions known as retinitis pigmentosa affect the retina.
- Retinitis pigmentosa causes the retinal cells to gradually deteriorate over time, resulting in visual loss.
- RP is a hereditary condition that affects people at birth.
- The term "retinitis pigmentosa" (RP) refers to a group of illnesses that affect the retina's light-sensitive cells and impair vision.
- There is currently no medication to stop the course of the disease, nor is there a cure.
- Night blindness and tunnel vision are symptoms.
- Retinitis pigmentosa has no specific treatment.
- However, using UV sunglasses to protect the retina in your eyes may help postpone the onset of symptoms.
- For people with very advanced disease and severe visual loss, a retinal prosthesis (artificial retina) has been developed.
Learn more about retinitis pigmentosa here:
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Transcription factors are necessary for an initiation of transcription at a regulated gene but not sufficient.
Transcription is the first step of gene expression in which DNA molecule is copied (transcribed) into RNA (mRNA) by RNA polymerase. The process of transcription is divided into three phases:
1. Initiation
• RNA polymerase with transcriptional factors bind to gene promoter Transcription factors can enhance the interaction between RNA polymerase and a DNA sequence- promoter, encouraging the expression of the gene. Such transcription factors are called activators. Otherwise, when the gene expression is inhibited, factors are called repressors and they bind to sequence –operator.
• RNA polymerase unwinds DNA double helix (transcription bubble is formed)
2. Elongation
• RNA polymerases adds nucleotides complementary to DNA
3. Termination
• RNA polymerase gets to stop codon (transcribes a sequence of DNA known as a terminator)
• Formed complementary RNA strand is released from DNA-RNA complex
