Mendelian inheritance patterns
Traits follow dominant and recessive principles.
P generation — definition?
Original parent organisms in a genetic cross.
F1 generation — role?
First offspring from P generation cross.
F2 generation — significance?
Second filial, shows recessive traits reappear.
Non-Mendelian inheritance — examples?
Incomplete dominance, codominance, multiple alleles.
Incomplete dominance — outcome?
Heterozygotes show intermediate phenotype.
Codominance — expression?
Both alleles expressed simultaneously.
Multiple alleles — trait example?
Blood types: IA, IB, i.
Gene — role?
DNA segment coding for a trait.
Allele — definition?
Different forms of a gene.
Dominant allele — symbol?
Expressed if present, uppercase letter.
Recessive allele — symbol?
Masked if dominant allele present, lowercase.
Genotype — what?
Genetic makeup of an organism.
Phenotype — what?
Observable traits of an organism.
Punnett Square — purpose?
Predict offspring genotypes and probabilities.
Monohybrid cross — focus?
Single trait inheritance.
Dihybrid cross — analyze?
Two traits simultaneously.
Pedigree analysis — use?
Trace inheritance patterns across generations.
Teste tes connaissances avec un QCM de 9 questions sur Genetics Fundamentals and Inheritance.
1. What is a key difference between mitosis and meiosis in terms of the daughter cells produced?
2. When were Punnett Squares first established as a tool for predicting genetic crosses?
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