Infectious disease and parasites that affect population size are ____
a. carrying capacities
b. replacement factors
c. density-dependent controls
d. density-limiting controls
e. density-independent controls
ANSWER: c
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A cadherin protein can only bind to:
A. another cadherin. B. another cadherin of the same type. C. the extracellular domain of the same type of cadherin. D. the extracellular matrix.
The change of the pattern of gene expression without changing the nucleotide sequence of DNA is
termed _________________. Fill in the blank(s) with the appropriate word(s).
In peas the trait for tall plants is dominant (T) and the trait for short plants is recessive (t). The trait for yellow seed color is dominant (Y) and the trait for the green seed color is recessive (y). A cross between two plants results in 296 tall yellow plants and 104 tall green plants. Which of the following are most likely to be the genotypes of the parents?
A. TTYY x TTYY B. TTyy x TTYy C. TtYy x TtYy D. TtYy x TTYy E. TtYY x Ttyy
________ are the site of protein synthesis in the cell.
Fill in the blank(s) with the appropriate word(s).