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TLS Online TPP Program

#Question id: 1708

When antigen reaches a lymph node in a primed animal:

#I Life Science/ Life Sciences Group – I-V

  1. There is an increase in the output of cells in the efferent lymphatics over the following 24 h

  2. There is a decrease in the output of cells in the efferent lymphatics over the following 24 h

  3. There is an immediate output of activated blast cells

  4. It is transported to the spleen

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TLS Online TPP Program

#Question id: 19224

#SCPH28 | Zoology

Transformation efficiency is usually low, plants have been successfully transformed with large DNA fragments ranging from
TLS Online TPP Program

#Question id: 761

#SCPH05 I Biotechnology

In a DNA double helix each type of base forms a stable base pair with only one type of base. When bases on an RNA strand are involved in base pairing, which bases can form stable base pairs with more than one type of base?
TLS Online TPP Program

#Question id: 11074

#I Life Science/ Life Sciences Group – I-V

A 30-year-old woman performs a valsalva maneuver about 30 min after eating lunch. Which of the following best describes the changes in pulmonary and systemic blood volumes that occur in this woman?
TLS Online TPP Program

#Question id: 70

#SCPH05 I Biotechnology

The dimensions of living cells are limited, on the lower end by the minimum number of biomolecules necessary for function, and on the upper end by the rate of diffusion of solutes such as oxygen. Except for highly elongated cells, they usually have lengths and diameters in the range of
TLS Online TPP Program

#Question id: 4566

#SCPH06 I Botany

Which of these naturalists synthesized a concept of natural selection independently of Darwin?