Somatic mutations may be inherited by the next generation
Indicate whether the statement is true or false
FALSE
Explanation: Only germ-line mutations may be heritable; somatic mutations only affect the individual in which the mutation occurs.
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Which of the following is a true statement about asexual reproduction in plants?
A) Clones of plants do not occur naturally. B) Cloning, although achieved in animals, has not been demonstrated in plants. C) Making cuttings of ornamental plants is a form of fragmentation. D) Reproduction of plants by cloning may be either sexual or asexual. E) Viable seeds can result from asexual reproduction only.
During a microarray analysis, cDNAs made from normal cells are stained with a green fluor and cDNAs from
abnormal cells are stained with a red fluor. Which of the following statements is true about the results of this experiment?
a. Red spots indicate genes that are under expressed in abnormal cells. b. Red spots indicate genes that are not expressed in abnormal cells. c. Red spots indicate genes that are overexpressed in abnormal cells. d. Red spots indicate genes that are overexpressed in normal cells. e. Red spots indicate pseudogenes.
The nervous system develops primarily from
a. ectoderm. b. mesoderm. c. endoderm. d. the placenta. e. the gray crescent.
Which of the following describes the effector response of sweat glands and blood vessels?
a. sweat glands release sweat and blood vessels dilate b. sweat glands stop releasing sweat and blood vessels dilate c. sweat glands release sweat and blood vessels constrict d. sweat glands stop releasing sweat and blood vessels constrict