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TLS Online TPP Program
#Question id: 18073
#Unit 11. Evolution and Behavior
During which geological period was there an first definite evidence of land plants and algae dominant of many plants?
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.
TLS Online TPP Program
#Question id: 18087
#Unit 13. Methods in Biology
Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get
Exactly three correct answers
TLS Online TPP Program
#Question id: 18088
#Unit 13. Methods in Biology
If a coin is tossed 5 times, then consider the following statements:
I: Probability of getting exactly 2 heads is 5/16.
II: Probability of getting at least 4 heads is 3/16.
III: Probability of getting at most 2 heads is 5/8.
Which one of the following is correct in respect of the above statements
TLS Online TPP Program
#Question id: 18223
#Unit 11. Evolution and Behavior
The origin of indirect evidence of life, no recognizable fossils except bacteria (microfossils) was during which geological eras?