Problem:
Provide the correct answer and justification for your choice:
Question 1: Which statement below best describes the difference between a dominant gene and a recessive gene?
A.dominant genes are stronger than recessive genes
B.domiant genes aid in survival of the organism where recessive genes do not
C.dominant genes are working where recessive genes do not work
D.dominant genes produce 'visible' traits where recessive genes produce 'hidden' traits
Question 2: Mendel's Principle of Segregation, which he deduced from analyzing dihybrid crosses, states that each pair of alleles segregate independent of the other pairs during gamete formation. Which of the following is the meiotic explanation for Mendel's Principle of Segregation?
A. tretrad formation
B. crossing over
C. independnent assortment
D. haploidy
Question 3: Which of the following statements below best distinguishes pleiotropy and polygenic inheritance?
A.pleiotropy is one gene many phenotypes where polygenic is many genes one phenotype
B.pleiotropy is many genes one phenotype where polygenic is one gene many phenotypes
C.pleiotropy is a 'blending' between parental types where polygenic is many discrete phenotypes
D.pleiotropy is one genes expressing its phenotype where polygenic is many genes equally expressing their phenotypes together
Question 4: Many parakeets show dominant-recessive inheritance patterns in their feather color. Blue feathers are dominant over yellow feathers. However, in order to express feather color, they also need a dominant pigment gene which controls feather color expression. What type of inheritance pattern does feather color represent?
A.incomplete dominance
B.codominance
C.pleiotropy
D.epistasis