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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

Overview of interacting Genes

Genetics

3. Extensions to Mendelian Inheritance

Overview of interacting Genes

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Multiple Choice

Which one of the following statements is true of tRNAs?

tRNAs are directly involved in DNA replication.

tRNAs function as enzymes that catalyze peptide bond formation.

tRNAs are synthesized in the cytoplasm by ribosomes.

tRNAs carry specific amino acids to the ribosome during translation.

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Verified step by step guidance

Understand the role of tRNA (transfer RNA) in the cell. tRNAs are adaptor molecules that help translate the genetic code from mRNA into a sequence of amino acids during protein synthesis.

Recall that tRNAs are not involved in DNA replication. DNA replication involves DNA polymerases and other enzymes, but not tRNAs.

Recognize that tRNAs do not function as enzymes. The catalytic activity for peptide bond formation is carried out by the ribosome's rRNA, not by tRNAs themselves.

Know that tRNAs are synthesized in the nucleus by RNA polymerase III, not in the cytoplasm or by ribosomes. After synthesis, they are processed and transported to the cytoplasm.

Conclude that the true statement is that tRNAs carry specific amino acids to the ribosome during translation, matching their anticodon to the mRNA codon to ensure correct amino acid incorporation.