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

7. DNA and Chromosome Structure

DNA Structure

Genetics

7. DNA and Chromosome Structure

DNA Structure

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Multiple Choice

A chromosome is a(n) ______.

short segment of RNA that codes for a protein

enzyme that synthesizes nucleotides

complex of lipids and carbohydrates

long, continuous molecule of DNA containing many genes

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Verified step by step guidance

Understand the basic structure and function of chromosomes in genetics. Chromosomes are structures found in the nucleus of cells that carry genetic information.

Recall that chromosomes are made up of DNA, which contains the instructions for building proteins and regulating cellular activities.

Recognize that chromosomes are not short segments but rather long, continuous molecules of DNA that include many genes, each coding for specific proteins or functions.

Eliminate incorrect options by matching their descriptions with known biological molecules: RNA segments are shorter and not chromosomes; enzymes and complexes of lipids/carbohydrates do not describe chromosomes.

Conclude that the correct definition of a chromosome is a long, continuous molecule of DNA containing many genes.