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Enzymes use several types of catalytic mechanisms. differentiate between acid-base catalysis, covalent catalysis, and metal ion catalysis.
Categorize the following into these four categories (acid -base catalysis, covalent catalysis, metal ion catalysis, and All)
- catalysts may participate in oxidation-reduction reactions by changes in the oxidation state- a Zn^2+ cofactor may properly orient the substrate in the active site through ionic interactions- may take part in interactions involving Fe^2+- lowers the energy or stabilizes the transition state or intermediate- catalyst retains its original form after reaction occurs- a proton is transferred between enzyme and substrate- a covalent bond forms between enzyme and substrate- two-part catalytic process (for example, the chymotrypsin mechanism)- uses a nucleophilic functional group- may use amino acids such as aspartate or lysine for protonation of proton abstraction
Two parents with normal pigmentation have an albino child. Determine the probability that their next 4 children will consist of two albinos and two with normal pigmentation, in any order?
Traditionally, it was thought that nucleus was the control center of the cell. Recent discoveries though, indicate that the nucleus in eukaryotes is merely a repository of genetic data.
In mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal dominant allele. If a dwarf female from a pure line is crossed with a pink male from a pure line, Determine the phenotypic ratios in the F1 and F2 in..
You decide to climb Mt Everest and someone tells you it takes 2-months. Estimate the number of times you would stop and explain why you need to acclimatize. Describe all the physical effects on your body and the dangers.
At the end of the measurement period, which group will have produced the greatest volume of urine and which group the minimum? Describe your answer in details.
Determine which of the following correctly describes how myelination alters the passive properties of the neuronal membrane?
Autoimmune haemolytic anaemia is caused in general by auto anti bodies of the IgG and IgM classes. Can antibodies of other classes such as IgA, IgD, IgE cause autoimmune haemolytic anaemia.
Assume you have a population of 3,320 AA; 640 Aa; and 12 aa genotype. Calculate the relative fitness w, and the selection coefficient for each 3 genotypes
Considering the nomenclature conventions used for fruit fly genetics, how are mutant and wild type alleles of genes distinguished when writing out a cross?
Transfer of the immunologically competent T-lymphocytes from a donor into host expression different MHC antigens can have severe consequences, causing a fatal syndrome known as graft versus host disease (GVH).
A horse has a diploid complement of 64 chromosomes including 36 acrocentric chromosomes. The donkey has 62 chromosomes including 22 acrocentric chromosomes.
Discuss and explain ways in which the body's metabolism adapts to conditions of fasting/starvation. How do these adaptations affect the rate of weight loss when dieting?
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