The change in the developmental fates of

different cell lineages in response to signals
from adjacent tissues is
a. contact inhibition.
b. ooplasmic localization.
c. embryonic induction.
d. pattern formation.
e. all of these.


C

Biology & Microbiology

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Which best describes genotype and phenotype, respectively?

a. The type of genetic makeup and the type of phenomena that the organism experiences b. The location of the alleles and the overall condition of the organism c. The structure of the alleles and the outward appearance of the organism d. The heritable characteristics of the alleles and the offspring of the alleles

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If a shoot’s tip breaks off, its source of auxin disappears, so the __________ level rises in the stem. Fill in the blank(s) with the appropriate word(s)

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Describe the relationship between introns (size and number) and organismic complexity in eukaryotes

What will be an ideal response?

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On her first birthday, Alena takes her first steps, which are clumsy and awkward. By her second birthday, her steps are

smooth and coordinated. This transition in Alena’s walking skills best illustrates the concept of: a. imprinting. b. hard-wiring. c. reflex action. d. synaptic plasticity. e. voluntary acquisition.

Biology & Microbiology