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In a study of intraspecific aggression (aggression directed toward other members of the same species), an experimenter finds that 16 out of 23 animals tested in species A exhibit aggression, while only 6 of 25 are aggressive in species B. Do the two species differ significantly in terms of intraspecific aggression?
a. What is the degree of freedom? _________
b. What is the chi-square value? _________
c. Do the two species differ significantly in terms of interspecific aggression? _________
what is Carbonic anhydrase of red blood cells. If 10g of pure carbonic anhydrase catalyzes the hydration of 0.30g CO2 in one minute at 37 degrees C under optimal conditions, calculate the turnover number of carbonic anhydrase.
A case-control study was done in order to estimate the interrelationships between different risk factors for the myocardial infarction (heart disease).
If we ignore the possibility of crossing over, how many different combinations of chromosomes are probable in gametes of a single human.
throughput a heart attack, blood flowing to the heart muscle is interrupted by blockage of a coronary artery. How would you expect the metabolism in the heart to change?
How might you deterine whether the turbidity in your nutrient broth tube was from a mixture of different microbes or from the growth of only one kind of microbe.
The condition "xeroderma pigmentosum" is characterized by high rates of skin cancers like malignant melanoma. It is caused by mutations in any of many genes that encode enzymes that participate in:
Freediving is an activity in which a person dives, sometimes to great depth, without use of scuba gear. The diver must hold his or her breath for the duration of dive.
Animals obtain energy during a sequence of chemical reaction in which sugar (C6H12O6) and oxygen gas (O2) are reactants. This process produces water (H2O) and carbon dioxide (CO2) as waste products. How might you use radioactive isotope to find out w..
Explain the physiological connections between calcium blood levels and the actions of calcitriol, calcitonin, and parathyroid hormone. What are the dangers if one of these is not working properly? Now consider large number of postmenopausal women tak..
Examine the nature of water and how its unique chemical properties impact water regulations in plants. Elucidate the structure and function of the leaf to water regulation.
An inbred mouse that expresses Db and Kb is crossed with an inbred mouse that expresses no class I MHC. The F1 offspring are all DbKbKk.
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..
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