mendel and the gene idea Flashcards
gregor mendel
discovered the basic principles of heredity through his work with garden peas
in the 1800’s, the favoured explanation of heredity was the?
blending hypothesis
mendels work showed that?
this was not correct. he showed that discrete heritable units: genes: are passed on from parents to offspring
these “discrete heritable units: genes” give rise?
to separate identities in offspring from generation to generation
mendel studied…?
7 different characters of pea plants
what is a character?
visible heritable feature that varies among individuals
what is a trait?
each variant of a character is called a trait
what was an advantage of using the pea plant?
- easy to grow
- easy to cross breed experimentally
- grows to maturity in a single season
- many varieties
in mendels experiments, he ?
crossed two contrasting, true breeding varieties of pea plants
what is true breeding?
upon self-pollination, an organism will give rise to offspring of the same variety each time