Questions:
1. The products of mitosis are _______________.
- one nucleus containing twice as much DNA as the parent nucleus
- four genetically identical nuclei
- four nuclei containing half as much DNA as the parent nucleus
- two genetically identical nuclei
- two genetically identical cells
2. Genetically diverse offspring result from __________.
- binary fission
- mitosis
- sexual reproduction
- cytokinesis
- cloning
3. How many chromosomes do humans have in their body cells?
- 48
- 46
- 50
4. Which answer is in order from SMALLEST to BIGGEST?
- gene, chromosome, cell
- chromosome, gene, cell
- nucleus, gene, chromosome
5. Sizes of genomes of free-living organisms have been found to range from approximately
- 2-200 Mbp
- 0.5-1,000 Mbp
- 100-2,000,000 Mbp
- 1,000-1,000,000,000 Mbp
- 0.5-200,000 Mbp
[1 Mbp = 1 million bp]
6. Most sequences in the human genome belong to
- Genes
- Pseudogenes
- Gene fragments
- Interspersed repeats
- Tandem repeats
7. Which of the following genomes is richest in interspersed repeat sequences?
- Drosophila genome
- Human genome
- Maize genome
- Saccharomyces genome
- E. coli genome
8. A nucleosome consists of
- Chromatin and nucleotides
- Chromatin and histones
- DNA and chromatin
- DNA and histones
- Nucleoids and histone
9. Centromers contain
- Repeated DNA
- Chromatids
- Telomeres
- Proteins
- Microtubules
- Genes
10. Gene density can be high
- in telomeres
- anywhere on the chromosomes
- in centromeres
- in metaphase chromosomes
- in anaphase chromosomes