Download BI 102 – General Biology Instructor: Waite Quiz 3 Study Guide Quiz

BI 102 – General Biology
Instructor: Waite
Quiz 3 Study Guide
Quiz 3 will cover lectures 9 and 10
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What is inheritance? What are traits and how do they relate to chromosomes?
What is an allele? A locus?
How is a recessive allele different than a dominant allele?
Know the difference between heterozygotes and homozygotes.
How are genotype and phenotype different? Be able to identify examples.
What does a Punnett square tell you? Be able to complete and evaluate Punnett squares.
Genes on the same chromosome are said to be linked and are therefore usually inherited
together. When might these genes be separated and inherited independently?
Define incomplete dominance and be able to identify examples.
Define simple inheritance and be able to identify examples.
Define codominance and be able to identify examples.
What genotypes would be affected in a recessive inheritance disorder? In a dominant
inheritance disorder?
How is sex determined in humans?
Compare and contrast the X and Y chromosomes.
What is a sex linked disorder? Is it usually related to the X or Y chromosome?
What is the value of a pedigree? Be able to interpret a pedigree and fill in missing
genotypes
What is nondisjunction and when does it occur?
How is monosomy different than trisomy? How is the outcome of these conditions different
when a sex chromosome is involved as opposed to an autosome?