ANFS 300 EXAM 1 QUESTIONS WITH VERIFIED
ANSWERS
How many components are there to a gene? What are they? - Answers - Two
-structural
-regulatory
What mode of inheritance is linked to inheritance of regular chromosomes? - Answers -
Autosomal
What mode of inheritance is linked to inheritance of the sex determining chromosomes?
- Answers - Sex Linked
What mode of inheritance is linked to the genomic material of cytoplasmic organelles? -
Answers - Cytoplasmic
What is the starting population that gives rise to progeny showing no variation in the trait
of interest? - Answers - Pure line
What type of cross focuses on a single trait? - Answers - Monohybrid cross
If the parentals give the same results no matter which direction they are crossed what
does this tell you? - Answers - This shows the trait is not sex-linked
What is the phenotype observed in the F1 generation? Dominant or recessive? -
Answers - Dominant
What ratio of phenotypes will you find in the F2 generation of a monohybrid cross? -
Answers - 3:1 ratio
Two members of gene pair separate during gamete formation (equal segregation) -
Answers - Mendel's First Law
How do you perform a test cross? - Answers - Take the progeny and mate them to the
parental homozygous recessive
Different gene pairs assort independently during gamete formation - Answers - Mendel's
Second Law
The probability of independent events occurring together is the product of the
probabilities of the individual events. - Answers - Product Rule
ANSWERS
How many components are there to a gene? What are they? - Answers - Two
-structural
-regulatory
What mode of inheritance is linked to inheritance of regular chromosomes? - Answers -
Autosomal
What mode of inheritance is linked to inheritance of the sex determining chromosomes?
- Answers - Sex Linked
What mode of inheritance is linked to the genomic material of cytoplasmic organelles? -
Answers - Cytoplasmic
What is the starting population that gives rise to progeny showing no variation in the trait
of interest? - Answers - Pure line
What type of cross focuses on a single trait? - Answers - Monohybrid cross
If the parentals give the same results no matter which direction they are crossed what
does this tell you? - Answers - This shows the trait is not sex-linked
What is the phenotype observed in the F1 generation? Dominant or recessive? -
Answers - Dominant
What ratio of phenotypes will you find in the F2 generation of a monohybrid cross? -
Answers - 3:1 ratio
Two members of gene pair separate during gamete formation (equal segregation) -
Answers - Mendel's First Law
How do you perform a test cross? - Answers - Take the progeny and mate them to the
parental homozygous recessive
Different gene pairs assort independently during gamete formation - Answers - Mendel's
Second Law
The probability of independent events occurring together is the product of the
probabilities of the individual events. - Answers - Product Rule
