Amount Quote by Gregor Mendel
“My experiments with single traits all lead to the same result: that from the seeds of hybrids, plants are obtained half of which in turn carry the hybrid trait (Aa), the other half, however, receive the parental traits A and a in equal amounts. Thus, on the average, among four plants two have the hybrid trait Aa, one the parental trait A, and the other the parental trait a. Therefore, 2Aa+ A +a or A + 2Aa + a is the empirical simple series for two differing traits.”
About This Quote
Source Book: Experiments on Plant Hybridization, 1866
Mendel describes the expected ratios of hybrid and parental traits in offspring from a cross of two pure lines.
In simple terms: Hybrid plants appear half the time, each parental trait a quarter.
Key Takeaway
Use Mendelian ratios to predict genetic outcomes.
Themes
genetics
inheritance
biology
Mood
analytical
educational
scientific
Type
explanatory
historical
scientific
When to use this quote
- plant breeding
- education
- research
- genetic counseling
Key Concepts
Mendelian genetics
trait segregation
Questions to Reflect On
- How do modern discoveries modify Mendel’s ratios?
- What factors cause deviations from expected outcomes?
A Different Perspective
Real-world genetics can be more complex than simple ratios.
