BiologyFundamental ConceptNCTB জীববিজ্ঞান অধ্যায় ১২ (জীবের বংশগতি)
Monohybrid Cross
Bengali: মনোহাইব্রিড ক্রস ও মেন্ডেলের সূত্র•Pronunciation: মনোহাইব্রিড ক্রস•Symbol: Tt \times Tt
Standard Definition:
A genetic cross between parents that differ in only one specific contrasting trait.
📐 Mathematical Equation, Units & Dimensions
Defining Mathematical Equation
Standard SI Unit
Statistical ratio(অনুপাত (Ratio))
Dimensional Analysis
CGS Unit
None
📖 Physical Concept & Comprehensive Explanation
Mendel's monohybrid crosses established the Law of Segregation. Crossing homozygous tall (TT) and dwarf (tt) pea plants yields all tall heterozygotes (Tt) in F1, which segregate in F2 to display a 3:1 phenotypic ratio and a 1:2:1 genotypic ratio.
🎯 High-Yield Revision Points
- ✓Tracks inheritance of a single contrasting gene pair.
- ✓F2 generation produces a 3:1 phenotypic and 1:2:1 genotypic distribution.
- ✓Demonstrates Mendel's Law of Segregation.
Use Online Solver for Monohybrid Cross
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❓ Frequently Asked Exam Questions (FAQ)
Common questions in board and competitive entrance examinations
Q1: State Mendel's First Law (Law of Segregation).
Allele pairs segregate during gamete formation so that each gamete carries only one allele for each gene.