Final answer:
Without the specific results from problem 6.1.3, it's not possible to answer the question on the estimated rates of increase in mean weight for the control, thiouracil, and thyroxine groups. An accurate analysis would involve calculating the mean weight gain for each group and then dividing by the duration of the experiment.
Step-by-step explanation:
The student's question cannot be answered accurately without the specific results from problem 6.1.3 as a reference. For sound scientific analysis, it is essential to look at the actual experimental figures. To estimate the rate of increase in mean weight for each group, one would typically calculate the average weight gain by subtracting the initial weight measurements from the final weight measurements and then dividing by the time to determine the rate. However, data from problem 6.1.3 is required to provide the specific rates for the control group, thiouracil group, and the thyroxine group.
If the question pertains to how to conduct this analysis once the appropriate data is provided, the following process can be followed:
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- Calculate the mean weight gain for each group by summing the weight gains of all individuals in the group and dividing by the group size.
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- Determine the rate of increase by dividing the mean weight gain by the duration of the experiment.
Average weight gain and estimated rate of increase are important measures in experimental biology, as they help determine the effectiveness of a treatment or condition being tested, such as in the case of feeding different substances to laboratory animals or using supplements to promote weight gain in cattle.