gregor mendel Flashcards
1
Q
started looking at pea plants ?
A
1856
2
Q
work recognised
A
1900
3
Q
3 thing gregor mendel did ?
A
- studied one characteristic at a time (seed shape, pod colour, stem length)
- carried out multiple trials
- created hybrids of 2 purebreed lines (one pure bred tall and short)
- artificially pollinated (manually)
- applied mathematics to validate laws e.g. monohybrid cross
- controlled environement
- plants were isolated
4
Q
first law of dominance
A
trait expressed = dominant, trait masked = recessive
5
Q
first law of segregation
A
-during gamete formation (meiosis)
each pair of genes serperate
each gamete receive one gene for the trait
6
Q
gregor mendel disproved/proved theory of time about blending
A
disproved, don’t blend but proved matched
7
Q
work was qualitative or quantitative ?
A
quantitiative
8
Q
published work in ?
A
1966
9
Q
WHY WAS HIS WORK RECOGNISED SO LONG AFTER PUBLISHED ?
A
- work was too progressive of time (as little knowledge of cells/meiosis/mitosis/genetics)
- work was different (of time and to other scientists)
- he had no reputation in scientific community
10
Q
genetic makeup =
A
genotype
11
Q
physical characteristic =
A
phenotype
