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TLS Online TPP Program
#Question id: 18077
#Unit 7. System Physiology – Animal
During which stage of the general adaptation syndrome (GAS) does the body adjust to the new stressor?
TLS Online TPP Program
#Question id: 18078
#Unit 9. Diversity of Life Forms
Which of the following can be found in gymnosperms?
TLS Online TPP Program
#Question id: 18079
#Unit 9. Diversity of Life Forms
Within a gymnosperm megasporangium, what is the correct sequence in which the following should appear during development, assuming that fertilization occurs?
1. Sporophyte embryo 2. female gametophyte
3. egg cell 4. megaspore
TLS Online TPP Program
#Question id: 18080
#Unit 9. Diversity of Life Forms
The following are all adaptations to life on land except
TLS Online TPP Program
#Question id: 18081
#Unit 8. Inheritance Biology
The interaction of selection and inbreeding in determining the incidence of autosomal recessive diseases. Consider a gene in which recessive mutations occur at a rate of 10-5. Assume a selective disadvantage S of 0.4 in homozygotes for the recessive allele. What is the frequency of the recessive allele (q). And calculate the incidence of the disease. Assume random mating.
TLS Online TPP Program
#Question id: 18082
#Unit 8. Inheritance Biology
The interaction of selection and inbreeding in determining the incidence of autosomal recessive diseases. Consider a gene in which recessive mutations occur at a rate of 10-5. Assume a selective disadvantage S of 0.4 in homozygotes for the recessive allele. Now assume that, for thousands of generations, 10% of all children have been products of first-cousin matings (the remaining 90% being products of random matings). Calculate the steady-state value of q. Also calculate the incidence of the disease at steady state.