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4EvaBio
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Добавлен 9 июл 2018
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Gene Expression: Translation
Gene Expression/Protein Synthesis has two major parts: Transcription and Translation. In this video you will learn about the process of translation. This is where mRNA is "translated" into a protein. Some of the key components discussed are: types of different RNA's, how to read genetic code, wobble position, tRNA loading/charging, and the three major steps of translation.
Просмотров: 156
Видео
Gene Expression: Transcription
Просмотров 762 месяца назад
This video discusses: the Central Dogma, transcription process in eukaryotes and prokaryotes; transcription factors, promoters, enhancers, general gene and mRNA structures; mRNA editing; alternative splicing.
Adaptive Immunity (part 2)
Просмотров 167Год назад
This video is part 2 of Body Defenses lecture series. While the 1st part discusses nonspecific defense mechanism, the 2nd part outlines specific defense mechanisms such as antibody mediated immunity and cell mediated immunity.
Innate Immunity/Nonspecific Body Defenses
Просмотров 114Год назад
Body Defenses lecture series (part 1): Innate immunity. It discusses nonspecific defense mechanisms such as barriers to pathogen entry, inflammatory reaction, natural killer cells, complement system, etc.
Enzyme Catalysis Lab Demo
Просмотров 302Год назад
Will explore how catalase ( in yeast) breaks down hydrogen peroxide to water and oxygen.
Standard Deviation, SEM, 95CI Error Bars for AP bio.
Просмотров 1,6 тыс.Год назад
How to calculate Standard Deviation, Standard Error of the Mean, 95% Confidence Interval... and how to draw and interpret Error Bars on graphs.
Congratulations to my AP Bio students!
Просмотров 153Год назад
Our AP Bio exam scores 2022-2023. Congratulations! How did I get so lucky to be your teacher?
How to analyze gene mutations using Gel Electrophoresis
Просмотров 3,1 тыс.Год назад
In general, before this RFLP analysis, blood and tissue samples must be collected, DNA extracted, and a region of p53 amplified using PCR. Then, PCR samples are digested using a specific restriction enzyme. In our AP bio class, we ran the samples through the gel as shown in the video.
Gene Expression Unit: Gene Expression Regulation in Eukaryotes
Просмотров 520Год назад
Gene Expression Unit: Gene Expression Regulation in Eukaryotes
Gene Expression Unit: Operons in Prokaryotes
Просмотров 339Год назад
Gene Expression Unit: Operons in Prokaryotes
DNA Unit: DNA and Protein Interaction
Просмотров 1,6 тыс.Год назад
DNA Unit: DNA and Protein Interaction
DNA Unit: How mutations arise in DNA, and how they are prevented and fixed
Просмотров 392Год назад
DNA Unit: How mutations arise in DNA, and how they are prevented and fixed
Genetics Unit: Gene Linkage, Recombination Frequency, and Application of Chi Square test
Просмотров 32 тыс.2 года назад
Genetics Unit: Gene Linkage, Recombination Frequency, and Application of Chi Square test
Genetics Unit: The Rules of Probability in Genetics
Просмотров 14 тыс.2 года назад
Genetics Unit: The Rules of Probability in Genetics
Cell Division Unit: Cell Cycle Control and Cancer ( part 3)
Просмотров 3 тыс.2 года назад
Cell Division Unit: Cell Cycle Control and Cancer ( part 3)
Cell Division Unit: Binary Fission and Mitosis (part 2)
Просмотров 6362 года назад
Cell Division Unit: Binary Fission and Mitosis (part 2)
Cell Division Unit: Intro to Cell Division (part 1)
Просмотров 5902 года назад
Cell Division Unit: Intro to Cell Division (part 1)
Cell Communication Unit: Cell Signaling- Response (PART 4)
Просмотров 6372 года назад
Cell Communication Unit: Cell Signaling- Response (PART 4)
Cell Communication Unit: Cell Signaling- Transduction and Signal Amplification (PART 3)
Просмотров 8612 года назад
Cell Communication Unit: Cell Signaling- Transduction and Signal Amplification (PART 3)
Cell Communication Unit: Cell Signaling- Reception Stage ( PART 2)
Просмотров 4,2 тыс.2 года назад
Cell Communication Unit: Cell Signaling- Reception Stage ( PART 2)
Cell Communication Unit: Intro _PART 1
Просмотров 7692 года назад
Cell Communication Unit: Intro _PART 1
Metabolism Unit: Enzyme Structure, Enzyme Catalysis, and Environmental Impacts on Enzyme Function
Просмотров 6942 года назад
Metabolism Unit: Enzyme Structure, Enzyme Catalysis, and Environmental Impacts on Enzyme Function
Metabolism Unit: Aerobic Cellular Respiration
Просмотров 8642 года назад
Metabolism Unit: Aerobic Cellular Respiration
Bro my ap teacher literally dosent do anything. I feel like I’m gonna fail. I need help🥲
You can do it! Make a plan and follow through. There are so many great resources out there. <3
These videos SAVE MY LIFE!!!!!
Your video has really helped me❤
Thank you this really helped
Incredibly helpful video, thanks!
Thank you so much, it was really helpful
Such a great video right before my Biology finals
Hello just wondering where did you get that 5' and 3'? i am studying restriction enzymes and im having a hard time cutting the sequences and counting the fragments and large fragments.
thanks very much for all of your work
It’s crazy that I’m getting ready for med school and still can’t understand the 1/16 on question number 3. Is it because this question is related to the first question asked?
Or is it because each will give us 1/8 probability so we add 1/8 + 1/8 to give us 1/16?
@@Topgear.filmer Do it in parts as I did in problem #2, So... if Aa x Aa , then there is 1/4 of a chance of getting AA; next- cross Bb with BB, and you will get Bb = 1/2, same for Cc. Multiply 1/4 x 1/2/x 1/2 = 1/16 for genotype AABbCc. Do the same for the other genotype and add them up. You will get 2/16. Simplify to 1/8. :)
Gosh keep those on there forevwr
Why do you need the information of E 1&2 if you already finished the mapping?
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Why wouldn't the epected ratio be 9:3:3:1 if we are following mendels law of independent assortment? Is it becuase this isn't the typical dihybrid cross (i.e. AaBb x AaBb)?
Actually I just did the cross and found out the expected is going to be 1:1:1:1 because the homozygous recessive individual doesn't change anything; so every thing should be 1 to 1.
If genes are linked, they don't follow the expected Mendel's law of independent assortment.
Ty ❤
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Good job❤❤❤
very helpful
Lil Mama go off!!Don't stop!!
Very well explained, if I have an unknown sample, how do i know at which site will they cut and how many bp they will produce?
Restriction enzymes have names and they are unique in a way that they can only recognize and cut a specific DNA sequence. Think of them as molecular scissors that seek out and cut only at a specific pattern. So if your unknown sample has the sequence that the restriction enzyme can recognize, it will be cut. If it does not have it, it will not be cut. If your linear DNA sample has 1 restriction site, it will be cut once and you will get 2 separate fragments. If your linear DNA sample has 3 restriction sites, it will cut 3 times and you will get a total of 4 fragments. To find out how many base pairs these fragments have, you will then run them through gel electrophoresis. :)
@@4EvaBio amazing! thanks for replying to me.. I am having trouble getting a well defined bands for my digestion product, I can see some separation but it is quite faint.
you didnt show the place where the 1550 and 1450 fragment shoud have been added to the plasmid....you made two plasmid on with only Enzyme 1 and 2. can you please add it to the plasmid
this was very helpful thank you so much!!
Thank you!!
Finally i understand thanks
Thank you! I couldn't find any explanation on this topic, you saved my life
Whete you are from?
Thank you , from India, that was very much on point
Learnt a lot from your videos ❤ thank you
You teach very well. I get it now, thank you!
I have does in our pond we always cut them in half because there so cute looking!😭
Difference between linkage & recombinant?
This is SO helpful, better explaining than my teacher thank you so much!!
you helped me more than my actual ap bio teacher, thank you !
Thx
Thanks
Thank you so much ! really helps a lot!
this helped soo much!
thank you very much
Thanks a bunch 🌟🌟
I wish It has more details in it..not completely understood
Check out my other video for more details to help you understand restriction enzymes, how they cut DNA and how DNA fragments run through the gel electrophoresis :) ruclips.net/video/2J5DSFCdgj8/видео.html
@@4EvaBio no I mean ..can you make a vedio on how we can detect homozygositt and hetrozygosity in bands while studing genetic diseases
Simply put.. Homozygous alleles(genes) show up as 1 band on the gel because they are the same size and run together through the gel. Heterozygous alleles are different... so they may have different sizes, hence show up as 2 separate bands. :)@@misbahfarooq1189
@@4EvaBiothank you..can I ask one thing more... What does non informative results or bands show. 2nd thing if there is no linkage what will be its explanation or how to justify it. Tomorrow is my m.phil defense.. Your help will be appreciated
What if you use mixer grinder 😂
unfortunately it cannot regenerate its lost part from small pieces made by a mixer .it has only some regeneration power
Are you pharmacist mam
Whare are you from mam
This video is helpful mam ❤❤❤
Ohh thank you so much for the breakdown!!
if you have more than just four different genotypes of offspring for F1, would the recombinants just be the two smallest numbers of offspring?
Tysm
Prof that cell have memory