Mitochondrial gene defects mainly cause myopathies (conditions affecting ____________________),
and encephalomyopathies (conditions also affecting ____________________). Fill in the blank(s) with the appropriate word(s).
ANS: muscles; the brain
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Insects are likely so successful because of which adaptations that allow them to live in a wide range of habitats? Select all that apply
A. desiccation-resistant eggs B. wings C. metamorphosis D. diverse feeding appendanges E. unique respiratory system of spiracles and tracheae
From the studies on chromosome similarities, it looks as though humans are most closely related to
a. apes. b. apes and gorillas. c. chimpanzees. d. gorillas. e. lemurs.
Differential gene expression is defined as:
a. the ability of some cells to arrest their development under different environmental conditions. b. the progressive fixation of the fates of a cell's descendants. c. the differences in the types of genes found in various somatic cells. d. regulation during development that varies the type and quantity of gene products among cells. e. the ability of some cells to constitutively express all their genes all the tim
The molecule needed to allow a cell to transfer genetic information from RNA to DNA is
A. DNA polymerase. B. RNA polymerase. C. reverse transcriptase. D. chlorophyll.