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WorksheetsGenetics Vocabulary
Total questions: 14
Worksheet time: 8mins
A trait that seems to disappear when two different genes for the same trait are present; "weaker" of two traits. Represented by a lowercase letter.
Recessive Trait
Dominant Trait
Purebred
Mixed Breed
(a) is the scientist who discovered the fundamental laws of inheritance through his work on pea plants. He is known as the Father of Genetics.
The passing of characteristics from parents to offspring.
genes
traits
heredity
allele
Characteristics that are inherited
Genes
traits
heredity
allele
Segments of DNA that carry traits for offspring.
Genes
characteristics
Alleles
offspring
a trait that is expressed when two different genes for the same trait are present; "stronger" of two traits. Represented by a capital letter.
Recessive Trait
Dominant Trait
Purebred
Mixed Breed
each member of a gene pair that determines a specific trait.
Ex) Aa - Each “A or a”
Characteristic
Allele
genotype
phenotype
same, two gene alleles combinations are the same (both dominant or both recessive AA or aa)
Homozygous
Heterozygous
different, two gene alleles combinations are different (one dominant and one recessive Aa)
Homozygous
Heterozygous
The way an organism looks and behaves. Ex) The ________ of a tall plant is tall, regardless of the genes it contains.
Genotype
Phenotype
Gene combination of an organism. You cannot always know an organism’s ______ simply by looking at its physical appearance.
Genotype
Phenotype
_____ ____ is a chart wherein all possible gene combinations are shown in a cross of parents. A _____ ______ tells us the probability of recessive or dominant traits.
(a)
Which one of these is a genotype?
Bb
Black hair
Which of of these is a phenotype?
Freckles
ff
