Gene A occurs on chromosome #5; gene B
occurs on chromosome #21. Therefore, these
two portions of the chromosome CANNOT be
a. homologous.
b. in the same individual.
c. homozygous.
d. alleles.
e. recessive
D
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__________ is a term that refers to similarities among various species that occur because the species are derived from a common ancestor.
A. Analogy B. Phylogeny C. Homology D. Heterology E. Morphology
Target cells are:
a. found only in specific endocrine glands b. endocrine cells c. muscle cells d. always hormone-producing e. equipped with specific receptor molecules and may occur in any part of the body
Plant growth requires steady sources of water and
nutrients obtainable from __________ and soil. Fill in the blank(s) with the appropriate word(s).
Two populations have very similar birth rates and death rates, but the change in the growth of the populations is quite different. What other factors might account for the difference?(Check all that apply.)A) Age structureB) Primary food sourceC) Generation timeD) ImmigrationE) Sex ratio
What will be an ideal response?