Mendel and Genetic Crosses (Leaving Cert Biology): Flashcards

Section of DNA controlling production of a protein

Specific location/position of a gene on a chromosome

Different forms of the same gene

Capital letters (e.g., $B$)

Lowercase letters (e.g., $b$)

Genetic make-up of organism (actual alleles present)

Physical expression/appearance resulting from genotype

Having two identical alleles (e.g., $BB$ or $bb$)

Having two different alleles (e.g., $Bb$)

Gregor Mendel

Study of inheritance of a single characteristic

Table showing all possible genotypes of progeny

Diagram showing genetic history of related individuals

3:1 (three dominant : one recessive)

1:1 (50%:50%)