Natural selection may result in
A. retention of favorable genes.
B. mutations.
C. the introduction of new genes into a population.
D. All of these answers are true.
A. retention of favorable genes.
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The nucleolus is the site where _______ is/are assembled.
a. nuclear pores b. ribosomal subunits c. chromatin d. the nuclear matrix
When DNA replication proceeds along a template, which of the following best describes the directionality of synthesis?
A. in the 3'-to-5' direction B. in both the 3'-to-5' and the 5'-to-3' directions C. in the 5'-to-3' direction D. from the centromere to the telomeres E. from telomere to telomere
Which of the following is a possible cause of herniation of discs?
A. hepatitis B. whiplash C. plantar fasciitis D. ulcer
All infections result in disease
Indicate whether the statement is true or false