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You have 2 tubes containing cultures of genetically distinct bacterial strains. You know that when you mix the two together, you get Horizontal gene transfer (HGT), but you do not know what genetic exchange mechanism is accomplishing this transfer. Prior to mixing the strains, you add an enzyme that degrades any DNA it comes into contact with the tubes and allow it to incubate briefly. You then mix contents of both tubes together and find that you are no longer able to achieve HGT. Both cultures are still completely viable. Name the 3 methods of HGT that we discussed in class. Which of these is the MOST likely process you interfered with? In your answer, explain your observations and why the other two processes are not likely to be involved.
how does the adaptive immune system remember its past victories.
The phenotypic variances were 9.4 cm2 for the inbred strain and 26.4 cm2 for the randomly pollinated population. Guess the broad sense heritability of ear length in these populations. What are the usual frequencies of the gametes from a plant with th..
Dominant-recessive relationships can make determining genotype tricky, since an individual with the dominant phenotype may have either the homozygous dominant genotype or the heterozygous phenotype.
In examining a picture of the cell taken with an electron microscope, a student observes that the cell has a nucleus and a cell membrane but not a cell wall. The student can accurately conclude that the cell is a what.
In labrador retreivers, black fur color is dominant to chocolate fur. A breeder crosses two heterozygous labs, resulting in a litter of nine puppies.
What does this show about the relation between voluntary and involuntary reflex movement. If the bacteriorhodopsin molecules were randomly oriented, would you expect ATP to be synthesized? Give details about the answers.
How could production of a packetlike spermatophore contribute to the evolutionary success of leeches in their environment?
From the list given below what options applies to fibrous proteins. Monomers are held together by covalent glycosidic linkages.
Explain the process of Micturition, and describe the role of the autonomic nervous system as well as voluntary functions of the bladder.
A casino paid 28,000 for a grilled cheese sandwich that was purported to have an image of the Virgin Mary on it.
A beetle (0.06g), a gorilla (200kg), a gecko (5g) and a hedgehog (5g) are all kept individually in 5x5m rooms that are maintained at a constant temperature of 25 C.
What is the distribution not the typical 1:1:1:1 that is observed in a dihybrid test cross.
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