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1. Introduction to Genetics51m
2. Mendel's Laws of Inheritance3h 37m
3. Extensions to Mendelian Inheritance2h 41m
4. Genetic Mapping and Linkage2h 28m
5. Genetics of Bacteria and Viruses1h 21m
6. Chromosomal Variation1h 48m
7. DNA and Chromosome Structure56m
8. DNA Replication1h 10m
9. Mitosis and Meiosis1h 34m
10. Transcription1h 0m
11. Translation58m
12. Gene Regulation in Prokaryotes1h 19m
13. Gene Regulation in Eukaryotes44m
14. Genetic Control of Development44m
15. Genomes and Genomics1h 50m
16. Transposable Elements47m
17. Mutation, Repair, and Recombination1h 6m
18. Molecular Genetic Tools19m
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

3. Extensions to Mendelian Inheritance

Sex Chromosome

Genetics

3. Extensions to Mendelian Inheritance

Sex Chromosome

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Multiple Choice

Which of the following statements is true of a species that has a chromosome number of 2n = 16?

The species has 8 pairs of homologous chromosomes.

The species has 8 chromosomes in each somatic cell.

The species has 32 chromosomes in each gamete.

The species has 16 pairs of homologous chromosomes.

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Verified step by step guidance

Understand the meaning of the notation 2n = 16. Here, '2n' represents the diploid number, which is the total number of chromosomes in a somatic (body) cell of the species.

Since 2n = 16, this means each somatic cell contains 16 chromosomes in total.

Recall that chromosomes in diploid organisms come in pairs called homologous chromosomes. The number of pairs is half the diploid number, calculated as $\frac{2n}{2} = n$.

Calculate the number of homologous pairs by dividing 16 by 2, which gives 8 pairs of homologous chromosomes.

Understand that gametes (sex cells) are haploid and contain half the number of chromosomes of somatic cells, so each gamete would have 8 chromosomes, not 32.