Genetics for beginners | Genes Alleles Loci on Chromosomes |

To learn about Transcription Translation and Protein synthesis, please go through this video: • Transcription Translat...
To learn about gene regulation in eukaryotes, please go through this video: • Gene regulation in Euk...
This video lecture explains
1. What is genetics?
2. What is a trait?
3. What is an allele?
4. What is the relationship between genes, alleles, DNA and chromosome?
5. What are heterozygous organisms?
6. What are homozygous organisms?
7. What is the difference between genotype and phenotype?
8. What is the difference between homozygous dominant and homozygous recessive?
gene locus photo credit: AK lectures
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To learn about Transcription Translation and Protein synthesis, please go through this video: kzbin.info/www/bejne/Z4nRnK2rfM2tY5I

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Thank you for the informative, easy to comprehend instructional video on zenes and the allele within a cell which is a part of our DNA, much appreciated. Wouldn't know this without the view, thanks again.

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[@princejangra760]

sir if a pair of chromosomes have Tt alleles then how will it maintain the genetic uniformity after mitosis

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[@shri.shri.shri.]

Is allele one gene EACH in a chromosome pair ??? Or one gene in chromosome pair as you have mentioned in definition.. Please clarify

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[@petclement-2020]

Since you explained that a chromosome is a condensed form of DNA so it can fit into the nucleus of the living cell...Hence it should be DNAs Chromosomes Gene Alele

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Thanks sir

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Please sir...can u give best defination for Alleles.

[@BiologyLectures]

Dear Abhinav, Please find the defition below: An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous

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[@divyapadhariya141]

Sir at 3:20 you said that dna cannot fit in nucleus thats why it becomes chromosome. But that is not true sir. The dna is present loosely in the cell. Only and only when there is cell division, it gets condensed and form chromosome.

[@BiologyLectures]

Dear Divya, Thank you for your comment. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. Chromosomes are made of a single piece of DNA that is highly organized. Chromosomes are made of a single molecule of DNA wrapped around a small, spool-like protein called a histone. The wrapping of DNA around a histone is important, as otherwise most DNA molecules would not fit inside of cells.

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@@BiologyLectures ok sir 👍 thank you for clearing my doubt 😊

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@@divyapadhariya141 You are most welcome.

[@parkhhind2621]

Does the Locus of each gene vary from male to female ?

[@BiologyLectures]

Locus of a gene may vary between males and females. Males and females have partially different genomes. Viewed from a purely reductionist standpoint, many differences between the male and female sexes are predicted to be rooted in differences between the genetic contents of male and female cells and differences in the expression of those genetic contents

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definitely Like )

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[@zerowork7631]

This is really help full I wish you were my bio teacher , But when you pronounce gene , you keep saying zine and evin my subtitle writes zine

[@BiologyLectures]

Apologies for the mispronunciation. Thank you for pointing this out. Will try to pronounce it correctly in the future videos.

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Best explanation ever on KZbin

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[@suzainmahek4184]

Wdym by genes code?

[@ajithkumarahanwella786]

its not brown skin sir its pale skin not even a kind of brown ish colour in the group of brown ish colours

[@BiologyLectures]

Yeah, We realized that. Thanks for pointing that out. This is just an example of a trait.

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That's a brown hair, not black hair.

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Is it Zene or Gene?

[@BiologyLectures]

It is gene. Sorry for the mispronunciation.

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6:16START

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Thank you

[@nursechiomambamara9702]

I don't understand this definition of chromosomes and DNA

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are you a nepali?