The unit that determines traits
What is a gene?
The physical appearance of an organism; the expression of its genotype
What is a phenotype
Melissa is tall; Pedro has brown eyes — for example.
A distinguishing characteristic
What are traits
The likelihood of something happening...
Probability
What information do we need before we can fill in a Punnett square?
The genotypes of the parents
In simple genetics, how often will the heterozygous genotype display the dominant trait?
100% of the time
A chart that shows the inheritance of a particular trait/disorder within several generations of a family
What is a Pedigree?
A particular form of a gene, such as the A in the genotype Aa
What is an allele
When Mendel crossed pure-breeding tall plants (TT) with pure-breeding short plants (tt), what was the result?
All the plants were tall
Suppose a disease is recessive and only present in individuals who are hh. Cross a HH with Hh. What are the odds of the disease affecting the offspring?
0%
Gray eyes are a recessive trait. Cross a homozygous recessive mother and a heterozygous father. What are the odds of the child having gray eyes?
50%