Recent Lessons

Show all results for ""

12 Questions

1 Views

Genes and Proteins: The Central Dogma

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary reason why the genetic code is considered degenerate?

Multiple codons can code for the same amino acid (correct)
The code is not universal across all organisms
There are more amino acids than nucleotides
The sequence of nucleotides is not unique

What is the significance of all organisms sharing the same genetic code?

It suggests that life evolved from a common ancestral organism (correct)
It provides evidence for the diversification of life on Earth
It is a result of convergent evolution
It allows for the exchange of genetic material between organisms

What is the main difference between transcription in prokaryotes and eukaryotes?

The location of transcription and translation (correct)
The type of RNA transcript produced
The number of polymerases used
The timing of transcription and translation

What is the function of a start codon in the translation process?

It initiates the translation process (B) Signup and view all the answers

Why is it important to consider the reading frame when decoding a sequence of codons?

To ensure that the correct amino acid is synthesized (B) Signup and view all the answers

What is the significance of the template strand in DNA synthesis?

It is the non-coding strand that serves as a template (D) Signup and view all the answers

What is the central dogma in the context of genes and proteins?

A theory that genetic information only flows in one direction from DNA to RNA to proteins. (A) Signup and view all the answers

What is the function of a gene, according to Beadle and Tatum's experiment?

To provide the instructions for making proteins. (D) Signup and view all the answers

What is a chromosome, according to the text?

A structure found inside the nucleus of a cell, made up of proteins and DNA organized into genes. (D) Signup and view all the answers

What is the result of many genes encoding for proteins other than enzymes?

The creation of transport, signaling, and structural proteins. (D) Signup and view all the answers

How do we get 64 possible codons?

By combining 3 nucleotides. (B) Signup and view all the answers

What is a characteristic of many proteins, according to the text?

They are composed of multiple different polypeptides. (C) Signup and view all the answers