The main difference is that "SNP" specifically refers to a common and stable single nucleotide variation that is present in a significant portion of the population, while "SNV" is a more general term that encompasses any single nucleotide variation, including SNPs as well as rare or disease-causing mutations. SNPs are a subset of SNVs.
Hi, I have a question , is that possible if some one with different haplogroup for example haplogroup O has same SNPs with some one else with haplogroup j1 ?
Second point explains Minimum more than 1% of population should not have same nucleotide at a specific position i.e. there should be different nucleotide, then only it can be classified as SNP.
@@medicalscience1528 yes. A SNP is a variation of a single nucleotide between individuals. These polymorphisms can therefore be used to discern small differences both within a population and among different populations
@@BiologyLectures ok thank you so much for clearing my concept 😊 Then, SNP is normal in simple words but it gets harmful only when protein coding DNA segment gets variations , right?
No, "copy1" for a chromosome does not refer to the pairs of chromosomes from parents. The terms "copy1" and "copy2" refer to the two copies of a chromosome within an individual's own genome. Specifically, "copy1" refers to the maternal copy of the chromosome, while "copy2" refers to the paternal copy of the chromosome. For example, if an individual has a heterozygous genotype for a particular gene on chromosome 2, meaning they have two different versions (alleles) of the gene, one on each homologous chromosome, then "copy1" would refer to the maternal chromosome carrying one allele of the gene, and "copy2" would refer to the paternal chromosome carrying the other allele of the gene. Therefore, "copy1" and "copy2" are used to distinguish between the two homologous chromosomes within an individual's own genome, not between the two chromosomes inherited from each parent.
Thank you. Very clear. How we can trace parents through x 23 y-chromosome by tracing tens of parents if all what we have is just one chromosome please?
Variation describes diversity in the genetic make-up of a species Variation arises from mutations Variations usually have a small effect on phenotype (continuous variation), but there are examples where a variant has a large effect on a phenotype, and generates distinct categories (discontinuous variation)
Is it not "when more than 1 percent have a specific changes, then its called SNP?"
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How does single nucleotide polymorphism differ from single nucleotide variant?
The main difference is that "SNP" specifically refers to a common and stable single nucleotide variation that is present in a significant portion of the population, while "SNV" is a more general term that encompasses any single nucleotide variation, including SNPs as well as rare or disease-causing mutations. SNPs are a subset of SNVs.
@@BiologyLectures makes sense! Thank you!
Hi, I have a question , is that possible if some one with different haplogroup for example haplogroup O has same SNPs with some one else with haplogroup j1 ?
This was very helpful . 👍🏻👍🏻
But I didn't get the 2nd point ?
Second point explains Minimum more than 1% of population should not have same nucleotide at a specific position i.e. there should be different nucleotide, then only it can be classified as SNP.
@@BiologyLectures Ok, thank you👌🏻
We differ from each other isn't result of SNP ?
@@medicalscience1528 yes. A SNP is a variation of a single nucleotide between individuals. These polymorphisms can therefore be used to discern small differences both within a population and among different populations
@@BiologyLectures ok thank you so much for clearing my concept 😊
Then, SNP is normal in simple words but it gets harmful only when protein coding DNA segment gets variations , right?
Got it sir
Thank you
does the copy1 for Chr2 refer to the pairs of Chromosomes from parents?
No, "copy1" for a chromosome does not refer to the pairs of chromosomes from parents.
The terms "copy1" and "copy2" refer to the two copies of a chromosome within an individual's own genome. Specifically, "copy1" refers to the maternal copy of the chromosome, while "copy2" refers to the paternal copy of the chromosome.
For example, if an individual has a heterozygous genotype for a particular gene on chromosome 2, meaning they have two different versions (alleles) of the gene, one on each homologous chromosome, then "copy1" would refer to the maternal chromosome carrying one allele of the gene, and "copy2" would refer to the paternal chromosome carrying the other allele of the gene.
Therefore, "copy1" and "copy2" are used to distinguish between the two homologous chromosomes within an individual's own genome, not between the two chromosomes inherited from each parent.
@@BiologyLectures Thank you for the clarification.
@@tantszhim You are most welcome.
Thank you. Very clear. How we can trace parents through x 23 y-chromosome by tracing tens of parents if all what we have is just one chromosome please?
We can sequence the DNA from both parents and the child and compare with each other to identify if child is from the couple under analysis.
Excellent work sir 👍👍👍
Many thanks
What is a variation?
Variation describes diversity in the genetic make-up of a species
Variation arises from mutations
Variations usually have a small effect on phenotype (continuous variation), but there are examples where a variant has a large effect on a phenotype, and generates distinct categories (discontinuous variation)
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Ajit
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thank you
You are most welcome.