Collaborator Genes 9:6:1 Ratio | Gene Interaction NEET Biology Class 12 | Neela Bakore Tutorials

◀ PREVIOUS VIDEO (11/36): Complementary Genes (9:7)

▶ CURRENT VIDEO (12/36): Collaborator Genes (9:6:1)
https://www.youtube.com/watch?v=btgWZcE9l3k

▶ NEXT VIDEO (13/36): Duplicating Genes (15:1)

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🔗 Full Playlist: https://www.youtube.com/playlist?list=PLr5BFsBzRyFTujMChFMNDOZdHGS8u-Fng

Both dominant alleles in different combinations give different results — Collaborator Genes, 9:6:1 ratio!

📌 Topics Covered:
• What are Collaborator Genes?
• 9:6:1 phenotypic ratio and how it arises
• Differentiating 9:6:1 from 9:7, 9:3:4, 15:1, 12:3:1
• Step-by-step dihybrid cross
• NEET MCQ strategy

Transcript with Timestamp
0:00 Introduction — Collaborator Genes
0:24 Definition: genes at different loci, each with independent expression
0:41 Example: Comb shape in Fowl — 4 types
1:05 Gene P → P-type comb; Gene R → Rose-type comb
2:11 P + R both dominant → Walnut comb; both recessive → Single comb
3:11 Cross: PPRR × pprr → F1 all walnut
4:33 F1 selfing → F2
10:43 F2 ratio: 9 Walnut : 3 P-type : 3 Rose : 1 Single
11:16 Ratio = 9:3:3:1 — SAME as typical Mendelian dihybrid ratio

Amazon Brand Store at https://www.amazon.in/neelabakoretutorials
Complete Study Notes (11th and 12th) are available at: https://amzn.to/3K4Li7k
Complete Study Notes for 12th are available at: https://amzn.to/3PRhWjm
Complete Study Notes for 11th are available at: https://amzn.to/4uw1hBa
The study notes for this unit Genetics & Evolution are available at https://amzn.to/2Sh27jW

The study notes for other units: –
Diversity in Living World – https://amzn.to/3r8qkyH
Structural Organisation in Plants and Animals – https://amzn.to/3r2cxmZ
Cell: Structure and Functions – https://amzn.to/2GPagcm
Plant Physiology – http://amzn.to/2EZR5HS
Human Physiology – http://amzn.to/2DA46ea
Reproduction – https://amzn.to/2wu43eS
Biotechnology – http://amzn.to/2EZyqf9
Biology in Human Welfare https://amzn.to/4dPRZd7
Ecology https://amzn.to/3RwuOvF
____________________________________________
For business inquiries: abhibakore@gmail.com
___________________________________________

#CollaboratorGenes #GeneInteraction #961Ratio #NEETBiology #GeneticsClass12 #NeelaBakoreTutorials