Mendel and his plants Flashcards
Who was Mendel?
An Austrian monk who founded modern genetics.
He did experiments using which type of plants?
Pea plants.
Characteristics in plants are defined by __________ units.
Hereditary (can be inherited)
Hereditary units are passed on from _______, one unit from each ______.
Parents
Parent
What’s a dominant allele?
It’s dominant over recessive alleles. Therefore, if a plant has a dominant allele and a recessive allele, the dominant allele’s characteristic will be expressed.
What’s a recessive allele?
Two of this allele must be present for the allele’s characteristic to be expressed.
Modern word for hereditary units =
Genes
What’s an allele?
A different version of the same gene.
If an organism has 2 alleles that are the same for one particular gene, then this is _________
Homozygous.
If an organism has 2 alleles that are different for one particular gene, then this is _________
Heterozygous.