chapter 14 mastering Flashcards
1
Q
What is a testcross?
A
It is used to determine whether an individual expressing the dominant phenotype is homozygous dominant or heterozygous.
2
Q
What is Mendel’s law of segregation?
A
is based on gametes getting only one copy of each allele of each gene.
3
Q
In a diploid cell with the genotype RrYyPp, how many different haploid cell genotypes could be created by independent assortment?
A
8
2^3, because: Rr = 1 , Yy = 2, Pp= 3
4
Q
What is the genotype ratio of a homozygous recessive x heterozygous?
A
1:1
5
Q
What is typically the purpose of drawing a forked-line diagram in genetics?
A
to determine what kinds of gametes an individual can produce.
