Genetic Terms I
What term explains the type of hairline someone has?
A trait
Give an example of a recessive allele
You observe that someone has freckles.
Phenotype
E=attached earlobe e=non attached earlobe
What is the phenotype?
attached earlobe
The different forms of a gene is a_______
The alleles of an organism are called what?
Genotype
genotype
A plant has yellow flowers. The yellow colour is known to be dominant. List any of the possible genotypes for this colour expression.
YY
Yy
This type of allele expresses a particular trait.
Dominant
Describe a phenotype:
Observable traits (not the specific alleles that individual has)
A white dog is not very common to see. What is the genotype if W=Brown and w=white?
ww
Green is a recessive trait (y) and yellow is the dominant (Y). What is the genotype for a green flower?
yy
A pure bred is an example of what?
Homozygous: identical alleles
The offspring that has a genotype that is heterozygous:
Hybrid
What is a genotype of a hybrid?
Aa
Heterozygous
Gg is an example of what type of genotype?
Heterozygous
What is true breeding?
BBxBB
Passing traits from parent to offspring
Heredity
One parent is RR and the other is Rr. Use terms to describe the genotype of each of these using 3 descriptors.
RR: homozygous, true breading, dominant
Rr: heterozygous, hybrid, dominant