Alleles and Genes Flashcards
a persons ability to taste PTC is a blank determined by a blank
trait gene
a persons combination of alleles are called
genotypes
the observable characteristic to see if people can taste PTC or not is called their
phenotype
a persons genotype determines their
phenotype
if a person has at least one dominant allele in their blank they will have the phenotype of being able to taste blank
geneotype, PTC
this is a myth blank traits are always more common
dominant
a blank allele is more frequent
recessive
trait frequency is about blank frequency
allele
each person inherits two alleles for each gene, one from each
parent
Alleles that are the same are called
homozygous
Alleles that are different are called
heterozygous
Genes are like hair color and the ability to taste PTC, while an allele is like the color of blank and what you can or can’t…
hair, taste
for every gene there are two alleles, one of each homologous
chromosome
TT or tt alleles are known as
homozygous
a person with Tf is
heterozygous
TT, Tf, tt are known as
genotypes
only one allele for each blank is activated
gene
definition of a genotype
2 present alleles TT, Tf
A phenotype is…
specific trait like shape, chin shape
what human traits can be changed by human intervention
your nose, lips, and more, but your blood and eye color cannot change
characteristic definition
any physical attribute of an organism
Trait definition
a specific characteristic controlled by a gene
what traits reflect genetic and environmental factors
intelligence, weight, hair color
what are the benefits and problems of genetic variation
The problem is inbreeding the benefit is evolutionary potential.
