Genetics
VOCABULARY
GENOTYPE
Gene combination that has to be at least two letters.
(BB, Bb, bb)
(BB, Bb, bb)
PHENOTYPE
Physical appearance or characteristics.
(short, tall, red, blue)
(short, tall, red, blue)
HOMOZYGOUS
The two alleles (genes) for a trait are the same.
(BB, bb)
(BB, bb)
HETEROZYGOUS
Two alleles (genes) for a trait are different.
(Bb, Rr)
(Bb, Rr)
DOMINANT
The allele mask that hides the recessive allele.
(Uppercase letter)
(B, R)
(Uppercase letter)
(B, R)
RECESSIVE
The allele that is masked by the dominant allele.
(lowercase letter)
(b, r)
(lowercase letter)
(b, r)
HOW CAN SOMEONE PREDICT THE TRAITS OF OFFSPRING?
Someone can predict the traits of an offspring by studying the genotypes of the parents and determining if those traits are dominant or recessive.
WHY IS IT IMPORTANT TO STUDY THE PRINCIPLES OF INHERITANCE?
We study the principles of inheritance because we can learn how diseases and deformities are passed on through time and through whom.