3:1 phenotypic ratio
1:1 genotypic ratio
3:1 genotypic ratio
1:2:1 phenotypic ratio
Whether the characteristics influence each other-whether color affects degree of roundness, for example.
Actually, Mendel never had a clear purpose in mind.
How new characteristics originated.
Whether different characteristics were inherited together or separately.
XY . . . XX
XX . . . XY
YY . . . XY
XX . . . YY
X . . . men
Y . . . men
X . . . women
Y . . . women
Mate it with a white mouse.
mate it with a mouse of its own genotype.
Mate it with a brown mouse.
It can't be done.
In fruit flies, the genes for scarlet eyes and hairy body are located on the same chromosome.
Wheat kernels can range from white to red in color, a trait controlled by several genes.
Matings between earless sheep and long-eared sheep always result in short-eared offspring.
The human cystic fibrosis gene causes many symptoms, from respiratory distress to digestive problems.
Segregation of alleles occurred during meiosis.
Body color and eye color are quantitative characteristics.
This is an example of pleiotropy
This cross shows incomplete dominance at work.
A test that can determine whether a fetus suffers from the disorder
Knowing which chromosome bears the allele that causes the disorder
Tracing the trait back through parents and grandparents
Being able to identify carriers