Table of contents

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 term describes a cell that contains only one copy of each chromosome?

Triploid

Haploid

Polyploid

Diploid

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Verified step by step guidance

Understand the definitions of the terms related to chromosome number in cells: 'Diploid' refers to cells with two copies of each chromosome, 'Haploid' refers to cells with one copy of each chromosome, 'Triploid' refers to cells with three copies of each chromosome, and 'Polyploid' refers to cells with more than two complete sets of chromosomes.

Recall that most somatic (body) cells in animals are diploid, meaning they have two sets of chromosomes, one from each parent.

Recognize that gametes (sperm and egg cells) are haploid, containing only one set of chromosomes, which is essential for sexual reproduction to maintain chromosome number after fertilization.

Identify that the question asks for the term describing a cell with only one copy of each chromosome, which matches the definition of 'haploid'.

Confirm that the other options (triploid, polyploid, diploid) do not fit the description of having only one copy of each chromosome.