Chapter 9 Flashcards
An organism that is heterozygous for fur color would have the genotype
Bb
The P generation is also called
true-breeding
When an organism has inherited two of the same alleles of a gen from both parents, it is considered ___ for that trait.
homzygous
A cross in which a single characteristic is tracked is called what?
a monohybrid cross
A homozygous individual could have any of the following genotypes except
Pp
In a monohybrid cross between a homozygous dominant parent and a homozygous recessive parent, one would predict the genotype ratio of offspring to be
4:0
In a monohybrid cross between two heterozygous parents, one would expect teh genotype ratio offspring to be what?
1PP:2Pp:1pp
In frogs, green skin is dominant. A green frog is crossed with a white albino frog. If the army of baby frogs contains a white offspring, the genotype of the green frog is probably what?
heterozygous
To determine the genotype of an individual who exhibits the dominant phenotype, you woud cross that individual with one who is what?
homozygous recessive
If two parents with dominant phenoypes produce an offspring with a receissive phenotype, then what is probably true?
both parents are heterozygous
A trait occurring in 300 offspring out of a total of 1,200 offspring has a probability of ___.
0.25
Suppose you have discovered a new species of butterfly. Some of the butterflies have blue spots and some have red spots. You cross a red spotted butterfly with a blue spotted butterfly and all of the resulting offspring have purple spots. Which is the most likely genotype of the offspring?
Pp
the father of genetics
Gregor Mendel
Describe Gregor Mendel
a monk; a statistician; a gardener; Austrian
A cross involving one pair of contrasting traits
Monohybrid cross
