The three-base sequence in a mRNA molecule is called a(n)
A. mutation.
B. codon.
C. initiator.
D. anticodon.
E. transposon.
Answer: B
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Indicate whether the statement is true or false.
In addition to its white coloration, beluga whales possess another unique characteristic which is: a. the ability to forage in groups
b. the ability to bend its neck. c. the formation of a tusk d. the presence of two teeth.
The growth rate of a population is expressed as:
a. b ? d. b. i ? e. c. K ? N. d. dN / r. e. (K ? N) / K.
Which of the following describe density-dependent factors? (Check all that apply.)A) They act to regulate population growth.B) They are especially important in K-selected populations.C) They can affect growth rates but not population size.D) They can affect birth rates or death rates.E) They do not involve biological interactions.F) One example would be intraspecific competition for resources.
What will be an ideal response?