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TLS Online TPP Program

#Question id: 2006

In Cases 1 and 2 in the table, the mothers would be able, if needed, to supply blood to the newborn even 7-9 months after birth; the same would not be true for Case 3. Why?

#Unit 4. Cell Communication and Cell Signaling

  1. The fetus in Case 3 would provoke an immune response in the mother that would carry over after the birth.

  2. The newborn in Case 3 would soon be able to make antibodies to the B antigen of the mother.

  3. Newborn children, until about age 2, do not make appreciable antibodies, except against Rh+ antigen. 

  4. Passive immunity would have worn off for the third newborn, but not for the other two.

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TLS Online TPP Program

#Question id: 11924

#Unit 9. Diversity of Life Forms

The largest seaweeds belong to which group?
TLS Online TPP Program

#Question id: 11925

#Unit 9. Diversity of Life Forms

The chloroplasts of land plants are thought to have been derived according to which evolutionary sequence?
TLS Online TPP Program

#Question id: 11926

#Unit 9. Diversity of Life Forms

The chloroplasts of all of the following are derived from ancestral red algae, except those of
TLS Online TPP Program

#Question id: 11927

#Unit 9. Diversity of Life Forms

A biologist discovers an alga that is marine, multicellular, and lives at a depth reached only by blue light. This alga probably belongs to which group?
TLS Online TPP Program

#Question id: 11928

#Unit 10. Ecological Principles

In most species, deviations from equal proportions of males and females in a sexually-reproducing population will confer an advantage to genotypes that: 
TLS Online TPP Program

#Question id: 11929

#Unit 10. Ecological Principles

This mating system is thse one most commonly seen in animals. Males attempt to mate with as many females as possible and rarely form a lasting pair bond.