Libbie Hyman's comprehensive study of invertebrates, beginning in the 1940s, was noteworthy for being one of the few major works at the time to ________
A) use Lamarckian evolution to explain the origins of animal phyla
B) use cladistics to resolve invertebrate relationships
C) integrate development with adult morphology to understand adaptation
D) propose gene regulation as an explanation for development
E) explain invertebrate evolution using "macromutations" with large effects
C
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Paired chromosomes in a cell in which members of the pair have genes for the same traits are called
A) Alleles B) Synapsis C) Sister chromatids D) Homologous chromosomes E) Centrioles
In ________ dominance, the phenotype of the heterozygous genotype is an intermediate between the phenotype of either homozygous genotype
Fill in the blank(s) with correct word
Most pedigrees showing the hypothetical human trait show the following characteristics: Females are affected twice as frequently as males. Affected fathers may have affected daughters but never affected sons. Half the children of affected mothers and normal fathers are affected. What is the MOST likely mode of inheritance for this disorder?
A. X-linked dominant B. X-linked recessive C. Y-linked D. autosomal dominant E. autosomal recessive
The maximum rate of natural increase of a population that occurs under ideal conditions is the
A. environmental resistance. B. density-independent population. C. biotic potential. D. carrying capacity. E. population growth.