How to solve Mendel's First Law problem on Rosalind

[@priyaltripathi1832]

Thankyou so much! I absolutely loved your explanation and was able to solve this question so easily. I'm really grateful.

[@ian565]

thanks for taking the time to make this, I was stuck for a little bit but I was able to solve it after you drew out the tree diagram.

[@alexkesin]

Thank you so much for the walkthrough!!!!!! The tree diagram helped me conceptualize this problem a lot :) What I did a little differently was that I hard coded finding the chances for each scenario (dom-dom, dom-hetero...recessive-hetero, recessive-dom, etc), multiplied the scenario by its respective probability (e.g. rec-hetero * .5), and then found what the sum of all of the scenarios that could yield dominant phenotypes over the total number of scenarios. Hope that makes sense :p

[@nikitamaurya4518]

Hi, this code does not provide the correct answer. Can you please help me?

[@osominor419]

Thank you so much! I had been banging my head on the keyboard for 3 days because of this

[@nikitamaurya4518]

Hi, this code does not provide the correct answer. Can you please help me?

[@alexandrupavilcu]

Very good explanation, I finally solved it! Thank you so much!

[@nikitamaurya4518]

Hi, this code does not provide the correct answer. Can you please help me?

[@Matik01ns]

Thank you so much for explanation!

[@Hiraeth_hiraeth]

very helpful! thank you~

[@ahnafrahman5805]

Hi! Why use numpy at all? def calculate_probability(k, m, n): total = k + m + n # Calculate probabilities for each genotype combination prob_aa_aa = (n / total) * ((n - 1) / (total - 1)) prob_Aa_aa = (m / total) * (n / (total - 1)) prob_Aa_Aa = (m / total) * ((m - 1) / (total - 1)) * 0.25 prob_dom = 1 - prob_aa_aa - prob_Aa_aa - prob_Aa_Aa return prob_dom k, m, n = 16, 26, 15 result = calculate_probability(k, m, n)

[@SabbirAhmedSozol]

Question was confusing thank you for the explanation.. make more videos.. really helpful..

[@sugarspliceandstudiesinmic754]

omg I'm glad it helped!! I will definitely try to post more!

[@nikitamaurya4518]

This code does not provide the correct answer. Please help.

[@khaidirkhaizuki378]

Good video... I really hope you doing more

[@tedarcher9120]

My solution is : D = 2 H = 2 R = 2 S = D + H + R P_R = (R/S)*((R-1)/(S-1)+H/((S-1)*2)) P_H = 0.5*(H/S)*(R/(S-1)+(H-1)/((S-1)*2)) print(1-(P_R+P_H)) Where D is the number of dominant organisms, H is the number of heterozygous organisms and R is the number of recessive organisms.

[@nikitamaurya4518]

Thanks for sharing! can you please share how did you derive P_R and P_H formula

[@nikitamaurya4518]

My answer is 0.83 instead of 0.78.

[@Jacob-sl6ur]

Yeah I understood nothing unfortunately, but that's just because my brain is smoother than the smooth ER. I had to copy your code, sorry :/