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I never understood punnet squares and this has just changed my whole life. I have a midterm tomorrow and this really helps me in every way. Thank you !
Thankyou for this. I thought Im not allowed to repeat the possible combination gametes from genotype, which actually confused me somehow.. But now it's pretty clear that it's okay to repeat it. wish me luck im taking my genetics exam later hehe
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Thank you but I have a problem solving a question if we cross between RRyy x RrYy , F1 will be 8/16 rounded yellow and 8/16 will be rounded green but what should I do in F2 generation it’s confusing I will be having four not RRYy , RRyy , RrYy , Rryy or maybe I made a mistake
Are you sure you typed the genotypes correctly? BcCe is not a dihydrid cross. The "B" has to be matched with another "B", either B or b. Same with C. So doublecheck if you read the question correctly.
Ma this is a great video and i understand that but i have a problem you did not use the law of segregation when forming those gamates (is threre a reason for that)
I have a question, when filling a square that its upper is bC for example and its side is BC, is the square will be BCbC or BCCb? Its confusing where i know Capital should comes first! Thanks in advance.😅
Pls make a punnett square for this question also 🙏 A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as (a) TTWW (b) TTww (c) TtWW (d) TtWw
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Thank you! Everybody in my class understood this so easy but me and I’m too shy to ask for help so this helped me more than I can say! Thanks again
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I can absolutely relate to you but I I've got this problem more at Maths lessons 😄😓
Your name is just what you want in your exams😂😂
Just like me bro, i'm so scared to ask for help and im literally a sophmore in a freshamn class struggling for help.
SAME ONGGG
7 years from now and I here so grateful 😇 thanks a lot ma’am🙏
You are welcome
After 6 solid years and this is still helping . kudos! From 🇲🇼
I have a test tomorrow and I didn't understand this part, now it's the easiest part. Thank you very much!
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I have a biology unit test this week coming up. This is helping me a lot on understanding the Punnett square . thank you !
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I never understood punnet squares and this has just changed my whole life. I have a midterm tomorrow and this really helps me in every way. Thank you !
You are welcome!
It helps me a lot. May ur channel get most helpfull for others and to me also.
helene you single handedly saved me from a test i did not study for, thank you.
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Finally a valid video!This is probably the easiest method so far
Happy to help!
i am watching this video because of the online class. The way she explains it is way better than my professor. XD
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Thank you so much. Please continue to make more videos. Genetics can be a very difficult topic for me yet you make it so easy.☺☺☺
More to come!
This was very helpful, thank you.
You are welcome. Just ask if you need help.
On the dead locs, this was well explained
You are welcome
Thankyou for this. I thought Im not allowed to repeat the possible combination gametes from genotype, which actually confused me somehow.. But now it's pretty clear that it's okay to repeat it. wish me luck im taking my genetics exam later hehe
You are welcome
Ty so much miss for the educative video. You just save me 😍😍😍😍
My pleasure 😊
I have my AP Bio finals tomorrow, needed to find this
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Thank you ma'am this helped me a lot
Well explained was easy to understand.
Thank you!!
Very helpful video, so well explained. Thank you!
You are welcome! Let me know if there is another topic I can help explain for you.
The only video with F2 gen for dihybrid cross.
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Thank you so much!❤ this video really helps me
Thanks, you made it simpler 🙏🏽❤
You are very welcome!
Thank you but I have a problem solving a question if we cross between RRyy x RrYy , F1 will be 8/16 rounded yellow and 8/16 will be rounded green but what should I do in F2 generation it’s confusing I will be having four not RRYy , RRyy , RrYy , Rryy or maybe I made a mistake
Thank you so much this helps me alot!!!
You are welcome! let me know if there are some other topics that you need help with as well!
Thanks for you explaining dear
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Thanks i now understand this concept
It has helped me very well. Here at Kenya
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Thanks so much this helped a lot!
Its very Helpful 🙏 but even though I follow each step carefully my assignment still doesn't make sense 😭
Send me the assignment question so that I can help you.
Real life savior
Im having so much trouble still. How do I solve something like BcCe x BcCC with punnet square?? I am looking everywhere
Are you sure you typed the genotypes correctly? BcCe is not a dihydrid cross. The "B" has to be matched with another "B", either B or b. Same with C. So doublecheck if you read the question correctly.
Excellent 👌
doesn't the dominant trait represented by the capital letter always comes first?
Writing the capital letter first is just a preference, it makes no difference in the expression pattern whether you write Dd or dD.
Most use the dom first. It’s more widely accepted
What is the genotype and phenotype ration of F1 gen.?
Genotype ratio is 8 : 8 for BbCc : Bbcc
Phenotype ratio is 8:8 for Black Fur Rough Coat : Black Fur Smooth Coat
Ma this is a great video and i understand that but i have a problem you did not use the law of segregation when forming those gamates (is threre a reason for that)
The cross over trick that I explain in the video is the Law of Segregation
okay understood thanks so much @@Bio_Tube
I have a question, when filling a square that its upper is bC for example and its side is BC, is the square will be BCbC or BCCb? Its confusing where i know Capital should comes first! Thanks in advance.😅
We keep the same alleles togehter, so it will be BbCC
@@Bio_Tube Thanks and the explanation was so nice 🌹
What is the phenotype and genotype ratio in f2 generation
F2 generation:
Phenotypic ratio: 6 Black fur, rough coat: 6 Black fur, smooth coat: 2 White fur, rough coat: 2 White fur, smooth coat
Genotypic ratio: 6 BBCc : 6 Bbcc : 2 bbCc : 2 bbcc
@@Bio_Tube thank you so much😊❤
Thank you so much helped a lot
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so what's the genotype, phenotype, and the ratios of F1?
Genotype ratio is 8 : 8 for BbCc : Bbcc
Phenotype ratio is 8 : 8 for Black Fur Rough Coat : Black Fur Smooth Coat
Very helpful thanks,may Allah swt bless you
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Thanks for your help
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What is the probability that the offspring from a dihybrid cross (heterozygous×heterozygous) will be homozygous for both characters? I need help plz
1/16
Thank you so much 💓
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Thanks for helping
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thank you
Pls make a punnett square for this question also 🙏
A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers
with short pea plants bearing white flowers. The progeny all bore violet flowers,
but almost half of them were short. This suggests that the genetic make-up of the
tall parent can be depicted as
(a) TTWW
(b) TTww
(c) TtWW
(d) TtWw
Here I understood it appreciations
You are welcome
Thanks!
Here is another helpful video!
th-cam.com/video/9Ctu-6GzRTU/w-d-xo.htmlsi=UVUUSsUHNFfCWdE7
Thank You 😌
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I'm here as a bsc 2nd year 😂😢
Thanks maam
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hello, you did not define your unknowns.
There are no unknowns in this cross
🥰
Hi
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lovely, thanks
You are welcome!
Thank you ❤
You are welcome!
Thank you
You are welcome!