The cross GE/ge × ge/ge produces the following progeny: GE/ge 404, ge/ge 396, gE/ge 97, Ge/ge 103. From these data, one can conclude that there are 20 map units between the G and E loci
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Grouped by some with the fungi based on molecular studies, these single-celled parasites are known to
infect insects, fish, and humans (especially those with compromised immune systems). They physically resemble spores, but they lack mitochondria.
a. amoebae b. red algae c. microsporidia d. dinoflagellates e. apicomplexans
Nucleosomes are bead-like structures ____
a. that form during interphase to assist with DNA uncoiling b. that are a major class of proteins in chromatin c. composed of histone wrapped with DNA d. composed of linked homologous chromosomes e. composed of pyrimidines and purines
Myosin and actin are the major contractile proteins in _______ muscle.
A. cardia B. smooth C. skeletal D. two of the above E. all of the above
Which of the following is false concerning photoautotrophs?
A) They feed themselves and all heterotrophs. B) They prepare glucose by using sunlight. C) They take carbon as carbondioxide. D) Without them life on earth would still be possible.