Septa divide the actinomycete mycelia into long cells each containing several nucleoids.
Answer the following statement true (T) or false (F)
True
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An autosomal recessive disorder strikes 1 in 1,800 newborns in a population. The frequency of carriers of this disorder is approximately
A) 0.00055. B) 0.023. C) 0.045. D) 0.5.
In the figure above, the two strands have
separated in step "b" because
a. the sugar-phosphate bonds were broken. b. the hydrogen bonds between bases were broken. c. energy from primers pushed the bases apart. d. the bases, being negatively charged, repelled each other. e. proteins were inserted between each pair of bases.
The most critical level of eukaryotic genetic control is ________ control.
A. translational B. posttranslational C. feedback D. transcriptional E. posttranscriptional
Griffith, a British microbiologist, used bacteria and mice to demonstrate the process of transformation. During transformation,
A. a bacterial chromosome produces an exact copy of itself. B. the nucleus of a mouse cell repairs itself when damaged by bacterial infection. C. a bacterial cell is transformed into a spore during unsuitable environmental conditions. D. DNA from an infected mouse cell changes bacteria from a nonpathogenic to a pathogenic form. E. genetic material is transferred from one bacterial cell to another.