Question

1.Continuous traits can be defined as:

a)Having a wide range of possible phenotypes

b)Having only a few distinct phenotype

c)Traits that are not influenced by environment

d)Traits heavily influenced by environment

2. Quantitative geneticists seek to answer general questions such as:

a)To what degree do alleles at different loci interact with each other?

b)How many genes affect the phenotype?

c)What are the relative contributions to the phenotype by the genes?

d)All of the above are general questions quantitative geneticists seek to answer

3. The key aspect of Johannsen’s work with bean seed weight was:

a)He ran a series of selection experiments

b)He threw out seeds that did not fit his weight ranges

c)He moved seeds from the ends his class ranges into the next weight class

d)He was able to compare seeds with only small weight differences

Answer 1

1)a)Having a wide range of possible phenotypes

2)d)All of the above are general questions

3)a)He ran a series of selection experiments