How many distinct phenotypes exist for a trait controlled by three additive loci?
a. 3
b. 7
c. 8
d. 9
e. 11
Answer: b. 7
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________ are nonviral genetic elements that have reverse transcriptase activity
Fill in the blank with correct word.
Mendel’s principle of independent assortment describes the segregation of paired factors during the formation of
gametes. __________________ Indicate whether the statement is true or false.
What is the primary determinant of virulence in Streptococcus pneumoniae?
A) the presence of a particular Lancefield antigen B) the production of pneumolysin C) the presence of a polysaccharide capsule D) the ability to lyse red blood cells E) strain-specific teichoic acids in its cell wall
Short tandem repeats on ____ may be used to determine genetic relationships among male relatives and descendants
a. the Y chromosome b. chromosome 3 c. the X chromosome d. chromosome 8 e. chromosome 20