ANFS 300 EXAM 1 QUESTIONS WITH VERIFIED
ANSWERS
What did we believe about inheritance before 1866 (Mendel's Experiment)? - Answers -
the blending hypothesis
What is the blending hypothesis? - Answers - That the offspring has an intermediate mix
of its two parents?
Why were peas a good subject for Mendel's experiment? - Answers - easy to cultivate,
short generations, many offspring, traits were easily differentiable
What ratio does a monohybrid cross have? - Answers - 3:1
What ratio does a dihybrid cross have? - Answers - 9:3:3:1
What was Mendel's conclusions (4) about the monohybrid cross? - Answers - One
character is encoded by two genetic factors, two alleles separate when gamete is
formed, the concept of dominant and recessive, the two alleles separate with equal
probabilities
What is the principle of segregation? - Answers - each organisms has two alleles for a
characteristic and they separate when gametes form, one allele going to each gamete
What is the chromosome theory of inheritance? - Answers - genes are carried from
parents to offspring on chromosomes from mitosis and meiosis
What is Mendel's principle of segregation? - Answers - the physical separation of alleles
during meiosis
What was Mendel's data for a dihybrid cross consistent with? - Answers - independent
assortment
What is independent assortment? - Answers - alleles of different genes are transmitted
independently of each other
How do you predict phylogeny? - Answers - find probability for each individual trait,
multiply using product rule to find overall probability
What is Chi Squared used for? - Answers - to measure if expectation match the
observed data
ANSWERS
What did we believe about inheritance before 1866 (Mendel's Experiment)? - Answers -
the blending hypothesis
What is the blending hypothesis? - Answers - That the offspring has an intermediate mix
of its two parents?
Why were peas a good subject for Mendel's experiment? - Answers - easy to cultivate,
short generations, many offspring, traits were easily differentiable
What ratio does a monohybrid cross have? - Answers - 3:1
What ratio does a dihybrid cross have? - Answers - 9:3:3:1
What was Mendel's conclusions (4) about the monohybrid cross? - Answers - One
character is encoded by two genetic factors, two alleles separate when gamete is
formed, the concept of dominant and recessive, the two alleles separate with equal
probabilities
What is the principle of segregation? - Answers - each organisms has two alleles for a
characteristic and they separate when gametes form, one allele going to each gamete
What is the chromosome theory of inheritance? - Answers - genes are carried from
parents to offspring on chromosomes from mitosis and meiosis
What is Mendel's principle of segregation? - Answers - the physical separation of alleles
during meiosis
What was Mendel's data for a dihybrid cross consistent with? - Answers - independent
assortment
What is independent assortment? - Answers - alleles of different genes are transmitted
independently of each other
How do you predict phylogeny? - Answers - find probability for each individual trait,
multiply using product rule to find overall probability
What is Chi Squared used for? - Answers - to measure if expectation match the
observed data
