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As an adult your DNA replicates billions of times and undergoes cell division. In the face of extreme challenge, DNA polmerase does a remarkably good job of inserting proper nucleotide at each spot in response to template. Though, mistakes occasionally occur.
a. what is one way in which a mutation can occur duing dna replication.b. what is one way in which a mutation can be initiated in DNA that is not replicating.c. explain how in a. (from above) the type of mutation would be repaired.d. is every unrepaired mutation harmful? Why or why not?
Both endocrine and nervous system are major regulating systems of the body; however, the nervous system has been compared to any post mail delivery system and the endocrine system to the pony express. In brief explain this comparison.
The nmetabolic processes called fermentation. a. produce substates for krebs cycle b. produce substrates for glucolysis c. occur only when oxygen is readily available d, are alternatives for the pentose phosphate pathway e, use an organic molecule..
a father has the genotype WW and the mother has the genotype Ww. what is the father's phenotype?
Think about the two separate experiments. In the first experiment, a DNA strand containing a+ b+ genes were placed in a culture of bacteria with a- b- genes.
A generalized transducing phage first infects a bacterial donor of genotype his +, trp +, and rif +. After lysis of the bacterial donor, a bacterial recipient of genotype
Genes A, B, and C are linked on a chromosome and found in the order A-B-C. Genes A and B recombine with a frequency of 8%, and genes B and Crecombine at a frequency of 24%.
Discuss the difference and similarities between mosses fern and gymnosperms to their life cycle? and how did they adapt to a land environment?
find out in which step each auxotroph has a mutaion. ("+" represents growth of the auxotroph on minimal meduim supplemented with the compund. ("-" represents no growth of the auxotroph on minimal meduim supplemented with the compound)
In human body, substances from blood filter through a membrane into renal tubule (kidney). What does an increase in the driving pressure correspond to?
You have screened for several new recessive mutations in a species of wasp. Wasps homozygous for apricot (aa) have pale orange eyes.
Refer to your textbook for more detailed data about the layers of human skin. Indicate whether each of the following structures is found in the epidermis, dermis, or subcutaneous layer.
With these anatomical features in mind, do research to find an angiosperm species that has structural modifications to leaves, stems, roots, or flowers that result in adaptive functions. For example, a California Barrel Cactus has spines in place ..
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