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TLS Online TPP Program

#Question id: 8858

Which of these factors, when used to label the horizontal axis of the graph in Figure 33.1, would account most directly for the shape of the plot?


#Unit 9. Diversity of Life Forms
  1. spongin concentration (gm/unit volume)
  2. rate of cribrostatin synthesis (molecules/unit time)
  3. number of choanocytes per sponge
  4. number of spicules per sponge
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TLS Online TPP Program

#Question id: 6948

#Unit 5. Developmental Biology

Which of the following genes is expressed at the posterior margin of each parasegment
TLS Online TPP Program

#Question id: 6949

#Unit 5. Developmental Biology

During gastrulation in Xenopus, the future mesoderm and endoderm move inside the embryo through the "blastopore"; in contrast, in chickens, gastrulation involves cells moving inward through the:
TLS Online TPP Program

#Question id: 6950

#Unit 5. Developmental Biology

In mammalian development, the embryo will form from which population of cells?
TLS Online TPP Program

#Question id: 6951

#Unit 5. Developmental Biology

In chick development, the cell movement during gastrulation is called:
TLS Online TPP Program

#Question id: 6952

#Unit 5. Developmental Biology

Which technique is commonly used for gene knock-out in mice?
TLS Online TPP Program

#Question id: 6953

#Unit 5. Developmental Biology

Maternal factors are: