What two major types of recombination involve exchange between duplex DNAs?
What will be an ideal response?
Ans: One type of recombination is generalized, or homologous, recombination, which occurs (for example) at meiosis and involves exchange between similar sequences. Second, specialized, or site-specific, recombination allows exchange between short homologous sequences. This can occur either between or within molecules.
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What is the basic flow of genetic information in all cellular life? Include in your answer a diagram that illustrates the relationships between the basic components and steps in the flow of genetic information
What will be an ideal response?
A 17-year-old male with a severe eye infection admits that he does not clean his contact lenses as often as he should. His eye infection is most likely the result of which parasite?
a. Toxoplasma gondii b. Isospora belli c. Strongyloides stercoralis d. Acanthamoeba spp.
Four of the five answers are examples of somatic senses. Select the exception
a. internal organ pain b. pain near the body surface c. temperature d. touch e. pressure
A study reported that high levels of phthalates in a pregnant woman could lead to ____ in their sons
a. undescended testicles b. smaller genitals c. feminized genitals d. enlarged breasts e. cancer