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TLS Online TPP Program

#Question id: 3284

The fitness of three genotype are A1A1 < A1A2 = A2A2) Which of the following observation correct?

#Unit 11. Evolution and Behavior

  1. Directional selection against dominant allele A1

  2. Directional selection against recessive allele A1

  3. Directional selection against dominant allele A2

  4. Directional selection against recessive allele A2

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TLS Online TPP Program

#Question id: 5581

#Unit 5. Developmental Biology

In humans, an individual with an XXY chromosomal complement will develop as
TLS Online TPP Program

#Question id: 3772

#Unit 3. Fundamental Processes

Who performed classic experiments that supported the semiconservative model of DNA replication?
TLS Online TPP Program

#Question id: 18812

#Unit 13. Methods in Biology

In human normal B and T cells develop the CDC4+ and CDC8+ first and then they differentiate to CDC4+ CDC- and CDC4- CDC+. If there is a defect in development which quadrant in the flow cytometer graph will show more density?
TLS Online TPP Program

#Question id: 11742

#Unit 6. System Physiology – Plant

Mature sieve elements external view, showing sieve plates. The pores in the sieve plates between the sieve tube elements are open channels, what is the relevance of this open pores in the sieve plates?
TLS Online TPP Program

#Question id: 10572

#Unit 10. Ecological Principles

In 2005, the United States had a population of approximately 295,000,000 people. If the birth rate was 13 births for every 1,000 people, approximately how many births occurred in the United States in 2005?