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

Given the DNA non-template (coding) strand sequence 5'-ATGCGT-3', what is the corresponding mRNA sequence produced during transcription?

5'-TACGCA-3'

5'-ATGCGT-3'

5'-AUGCGU-3'

5'-UACGCA-3'

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Verified step by step guidance

Identify the given DNA strand as the non-template (coding) strand, which runs 5' to 3'. The sequence is 5'-ATGCGT-3'.

Recall that during transcription, the mRNA sequence is synthesized complementary to the template strand, which is the strand opposite to the coding strand. The template strand is complementary and antiparallel to the coding strand.

Determine the template strand sequence by finding the complementary bases to the coding strand and reversing the direction to 3' to 5'. For each base: A pairs with T, T pairs with A, G pairs with C, and C pairs with G.

Use the template strand to write the mRNA sequence by replacing each DNA base with its RNA complement: A pairs with U, T pairs with A, G pairs with C, and C pairs with G. The mRNA is synthesized 5' to 3'.

Write the final mRNA sequence in the 5' to 3' direction, which will be identical in sequence to the coding strand except that thymine (T) is replaced by uracil (U).