T3: mendel single-gene inheritance

P generation

parental generation

monohybrid

an organism that is heterozygous for a single specific gene. This means it carries two different versions (alleles) of that trait

how many traits were tested in mendels experiements

7

would mendel support or reject the blended inheritance hypothesis?

Reject, purely always one parent not the other

blended inheritance hypothesis

offsprings are a blend of the two parents

what what mendels first experiment

crossing a true breeding purple plant with true breeding white plant

what happened when mendel did reciprocal crosses

got the same results, so results are not sex-specific

mendels law of segregation

alleles from one parents are kept as separate and are segregated into separate gametes during meisosis for sexual reproduction

example of mendels law of segregation

an Aa monohybrid segregates allels during meisosis so half the gametes gets A and the other half gets a

whats the ratio for F2 generation

3:1 phenotypic ratio and 1:2:1 genotypic ratio

test crossing

a genetics method used to determine the unknown genotype of an organism displaying a dominant trait.

what are the pros of letting F2 plants self fertilize

less work involved

what are the cons of letting F2 plants self fertilize

if Aa has only 25% chance of white phenotype instead of 50%