Genetic Code and Protein Synthesis

Genetic Code and Protein Synthesis

Assessment

Interactive Video

Biology, Chemistry, Science

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the role of DNA and RNA in genetic information storage and protein synthesis. It covers the transcription and translation processes, highlighting the structure of RNA and the difference between Uracil and Thymine. The discovery of the genetic code by Drs. Nirenberg and Matthaei is discussed, including their experiment with poly-U to identify the code for Phenylalanine. The concept of the triplet code is explained, showing how it allows for the encoding of 20 amino acids. The video concludes with the genetic code table and the Nobel Prize awarded for this groundbreaking work.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of DNA in cells?

To act as a structural component of cells

To transport proteins

To provide energy for cellular processes

To store and replicate genetic information

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which enzyme is responsible for converting DNA into mRNA during transcription?

Ligase

Helicase

RNA polymerase

DNA polymerase

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In RNA, which base is used instead of Thymine?

Uracil

Guanine

Cytosine

Adenine

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of mRNA in protein synthesis?

It stores genetic information

It breaks down proteins

It acts as a template for protein synthesis

It provides energy for the process

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which experiment led to the discovery that UUU codes for Phenylalanine?

The use of poly-G RNA

The use of poly-C RNA

The use of poly-A RNA

The use of poly-U RNA

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many different amino acids are encoded by the genetic code?

20

4

64

16

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of a triplet codon in genetic coding?

It encodes an amino acid

It encodes a single nucleotide

It encodes a protein

It encodes a pair of nucleotides

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