Genetics

VOCABULARY

GENOTYPE

Gene combination that has to be at least two letters.
(BB, Bb, bb)

PHENOTYPE

Physical appearance or characteristics.
(short, tall, red, blue)

HOMOZYGOUS

The two alleles (genes) for a trait are the same.
(BB, bb)

HETEROZYGOUS

Two alleles (genes) for a trait are different.
(Bb, Rr)

DOMINANT

The allele mask that hides the recessive allele.
(Uppercase letter)
(B, R)

RECESSIVE

The allele that is masked by the dominant allele.
(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.