Flashcards in Chapter 14 Deck (27):
Gregor Mendels study began in
Mendel bred ___ to study ___
Three reasons Mendel chose pea plants
Available in many varieties
Short generation time
Large # of offspring generate
Each variant for a character is called a
What does it mean for an individual to be "true-breeding"
Would only generate offspring which are the same as its parents
Mendels P generation
Purple and white flowers
True breeding parents
All purple flowers
Lots of purple flowers
Alternative versions of genes which account for variation in inherited characters
____ allele over ___ allele
"Blending" hypothesis or "particulate" hypothesis and why?
Particulate bc we know traits can skip a generation
Based on the law of segregation how many alleles does a single organism pass on to each of its offspring?
If a pea plant has one allele for purple flowers and one allele for white flowers what is the chance of one particular offspring receiving the white flower allele?
Draw a punnet square
See chapter notes
An organism that has a pair of identical alleles for a character
An organism that has 2 different alleles for a genes character
Actual genes of organisms
What it looks like
When would you perform a test cross?
When an organism has an unknown genotype.
Dominant phenotype and unknown genotype
How does a test cross work?
Cross unknown w homozygous recessive individual
What is the ratio of phenotype a in the F2 generation in a monohybrid cross
What is the ratio of phenotypes in the F2 generation in a dihybrid cross?
By the law of independent assortment a plant the inherits an allele for round peas from one parent ____ inherits an allele for yellow peas from that parent
The law of independent assortment applies to genes on ____ chromosomes
To determine a plants chances of having purple flowers and yellow peas (the probability that these two independent events will occur together) you would
To determine a plants chances of having round green peas or round yellow peas (the probability of either of these two mutually exclusive events occurring) you would