A fruit is a mature ____ that contains seeds
a. egg
b. ovule
c. megaspore
d. endosperm
e. ovary
ANSWER: e
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Which would most likely pass unaided through a plasma membrane?
A. Something small and polar, such as a water molecule B. Something small and nonpolar, such as nitrogen gas C. Something large, such as a glucose molecule D. Something small and charged, such as an ion
True or False: Environmental factors are unlikely to affect variable expressivity in individuals
A. true B. false
The essence of meiosis is that cells are formed that:
a. receive one copy of each member of each pair of homologous chromosomes. b. receive two copies of each member of each pair of homologous chromosomes. c. receive one member of each pair of homologous chromosomes. d. receive two members of each pair of homologous chromosomes. e. are exact copies of the parent cell.
A chromosome without a centromere is ________
A) paracentric B) acentric C) dicentric D) pericentric E) segmental