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TLS Online TPP Program

#Question id: 17803

Mitotic activity by the apical meristem of a root makes which of the following more possible? 

#Unit 9. Diversity of Life Forms
  1. increase of the above-ground stem. 
  2. decreased absorption of mineral nutrients. 
  3. increased absorption of CO2. 
  4. increased number of chloroplasts in roots. 
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TLS Online TPP Program

#Question id: 11586

#Unit 7. System Physiology – Animal

Predict the effects of a drug that increases adrenocorticotropic hormone (ACTH) synthesis.
TLS Online TPP Program

#Question id: 1463

#Unit 4. Cell Communication and Cell Signaling

In colorectal cancer, several genes must be mutated for a cell to develop into a cancer cell. Which of the following kinds of genes would you expect to be mutated?
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: 11135

#Unit 7. System Physiology – Animal

The three stages of information processing in animals include ________.
TLS Online TPP Program

#Question id: 5041

#Unit 5. Developmental Biology

Which one of the following developmental processes in animals is not dependent on cellular movements?