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Genetic diagrams show how characteristics are inherited. Alleles can be recessive, dominant or codominant genes.
What are the different forms of a gene called?
In a genetic diagram, how is a dominant allele shown?
As a bold letter.
As a lowercase letter.
As a capital letter.
Which of these represents someone who is heterozygous for a certain gene?
Polydactyly is an inherited condition, due to a dominant allele, causing extra fingers or toes. What is the chance of a child having polydactyly if their parents are Pp and pp?
What is a phenotype?
All the genes in an organism.
All the genes and characteristics shown by an organism.
The outward appearance of a gene.
Which of these represents someone who is homozygous dominant for a certain characteristic?
What does a pedigree diagram show?
How a genetic condition is inherited.
How a communicable disease is passed from person to person.
The gametes available in a population.