QUIZ 1. Which type of organism does not necessarily have DNA as its main genetic blueprint material? a. Bacteria b. Archaea c. Eukaryotes d. Viruses Answer: d. Viruses may contain DNA or RNA as their major form of nucleic acid. Certain viruses do not contain any DNA but contain only single-stranded or double-stranded RNA molecules. 2. What is the basic microbiological unit of inheritance called? a. Genome b. Gene c. Chromosome d. Base pair Answer: b. The gene is the basic unit of inheritance. Genes are either passed on intact or not passed on as part of the hereditary process. 3. What type of allele is seen in only one gender because of having two different chromosomes as part of their DNA? a. Sex-linked b. Dominant c. Recessive d. Codominant Answer: a. A sex-linked allele leads to a trait seen in only one gender because the gender has just one X chromosome and not two.
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