The diagram that you make from Cell to Gene is 👍👍 It's clears concept.. And even the basic difference between Intron and Exons are just easy to understand...
So Gene is a portion of DNA which we can not predict which portion it is ... .. Right ... So it is .. ?? what is it? A definition ? Or a portion of DNA, which we not always know which portion, or we can know with calculations? Or computers (from the Genome) ?
the CRISPR is the most advanced way to do that but to answer your question here is the best Research Article which can help you www.pnas.org/content/101/25/9205
If non coding part means intron don't produce protein so why denote it with codon CGA AND TCC bcz they both are protein producing codon or u just use it for understanding and is non coding are unknown or undiscovered??????
Introns are those regions which are spliced away , to get mature mRNA.....So any sequence which is spliced away is the intron bcz our Central dogma knows what part of genome ( nucleotide sequence ) contains the information to be expressed. Codons are essential at Translation level , if for example the introns are subjected for translation they would make an amino acid chain but it will be of now use or it will produce a non functional protein.
@@zabcdefghijklmnopqrstuvwxy114 Yes , if not spliced . Termed as intron retention which is very rare. Intron retention: A sequence may be spliced out as an intron or simply retained. This is distinguished from exon skipping because the retained sequence is not flanked by introns. If the retained intron is in the coding region, the intron must encode amino acids in frame with the neighboring exons, or a stop codon or a shift in the reading frame will cause the protein to be non-functional. This is the rarest mode in mammals
@@hussainbiology but if look at that point that 64 different codon 3stop and 1 start codon they all are used for produce aminoacid and which is helpful to made protein . Or we have to look at that point of view that for all cell all type of protein is not useful like some specific cell need specific enzyme so for that specific protein needed which is not neccecery or nonfunctional for other cell... so every cell have different intron due to their necessity
The location of each particular gene is different and thier function too. For example there are 100 genes, each are located at their respective position , and each of them perform single and different function. But if naturally the genes are located in same chromosome, then those gene are said to be 'alleles ' ( or they are said to be linked) , but only that gene will show its function which is dominant and the recessive one doesn't show it's character ( or will slightly show its function/character). When genes are on same chromosome ( closed together) they are said to be linked genes (alleles) & when genes are on different chromosome they are said to be unlinked genes. And as you said if two different genes are on same location then won't they perform single function? So the answer is ( though m not a teacher but will try my best to explain you) yes they can be located on same place but not exactly the same position thier will be slight distance between them but they will function the same but here the concept of dominant and recessive will be applied, that allele ( linked genes part) will show its function much more than other will be dominant one and other would be reccesive one ... Dominant one will show it's character in F1 generation, F2 or may be in F3 also and reccesive gene will show its character during F2 generation (50-50 % chances) or in F3 gen...
