The "switches" that trigger particular patterns of development and differentiation in cells and tissues are
a. master control genes
b. mRNA molecules
c. silencing complexes
d. Dicer enzymes
Answer: a. master control genes
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Every year approximately how many women are DIAGNOSED with breast cancer?
A. 15,000 B. 25,000 C. 45,000 D. 65,000
____ generally have greater population densities than less suitable sites
a. Metahabitats b. Sink habitats c. Source populations d. Source habitats e. K-selected populations
Which of the following accounts for someone who has had regular herpesvirus-mediated cold sore or genital sore flare-ups?
A) re-infection by a closely related herpesvirus of a different strain B) re-infection by the same herpesvirus strain C) copies of the herpesvirus genome permanently maintained in host nuclei D) copies of the herpesvirus genome permanently maintained in host cell cytoplasm
What types of repetitive sequences are found in the human genome?
What will be an ideal response?