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RNA molecules can be both self-replicating and catalytic. This probably means that
a. RNA was thefirst hereditary information. b. protobiontshad an RNA membrane. c. RNA couldmake energy. d. freenucleotides would not have been necessary ingredients in thesynthesis of new RNA molecules. e. RNA is apolymer of amino acids.
There are 100 students in your science class and you decide to do a research project focused on the distribution of alleles for brown versus blue eye color. You examine everyone and find out that 64 students have brown eyes and 36 have blue eyes. ..
how they (cluster determination,restriction digest) connect to each other.
Discuss how each of the following functional groups cause organic molecules to behave: Amino, carboxyl, hydroxyl, phosphate, and hydrocarbon.
Create a point mutation in the gene that will result in a genotype change, but not a phenotype change. Circle the point mutation on the DNA strand and name an agent that causes point mutations.
The wider orrcurence of glycolysis in nearly all organisms, both aerboic and anaerobic, indicates that it is one of the most ancient metabolic pathways.
Most transcription factors must form dimers to function. How can homodimerization and heterodimerization explain how a transcription factor can both activate and repress transcription.
On a given microscope, the numerical apertures of the condenser and low power objective lenses are 1.25 and 0.25, respectively. You are supplied with a filter that selects a wavelength of 250nm.
non covalent interactions which are most important. What is the driving force for proteins that are embedded in lipid membranes?
Explain three things that a paleontologist must do to plan a fossil hunting expedition so that he is likely to find evidence to reply a specific scientific question.
A female member of an animal species has a diploid chromosome number of 28, How many chromosomes in a spermatogonia?
You cross different Hfr strains with F- strains. You receive following orders of gene transfer.
Which are the three stages for identification of coliforms in a water sample? Can you confirm the presence of coliforms at each stage? Why or why not?
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