DNA Model and Transcription

What is Transcription?

• The making of tRNA from a DNA segment.

• The making of an rRNA strand from a DNA segment.

• The making of an mRNA strand from a DNA segment.

• Making a copy of DNA into DNA

The process represented in the diagram produces a molecule that is complementary to the template strand of DNA. What type of molecule is produced?

• New DNA
• Polypeptide
• Messenger RNA
• Carbohydrate

what does mRNA do?

• carry info from genes to ribosomes
• carry amino acids to ribosomes
• help with RNA splicing
• make up ribosomes

Where does transcription take place?

• nucleus
• ribosome
• cytoplasm
• smooth ER

What enzyme does transcription use?

• DNA polymerase

• ligase

• RNA polymerase

• helicase

The DNA chain act as a template for RNA synthesis has the following order of base, AGCTTCGA. What will be the order of bases in mRNA

• TCGAAGCT

• UGCUAGCT

• TCGAUCGU

• UCGAAGCU

In RNA, Uracil pairs with ______. 

• cytosine
• adenine
• guanine
• thymine

RNA contains:

• adenine, guanine, cytosine and thymine

• adenine, guanine, cytosine and uracil

Which of the following is a correct difference between RNA and DNA?

• RNA is single stranded and DNA is double stranded
• RNA is double stranded and DNA is single stranded
• DNA uses Uracil and RNA uses Thymine
• RNA has deoxyribose and DNA has ribose

The five carbon sugar found in DNA

• Ribose
• Deoxyribose
• Glucose

Tags

NGSS.HS-LS1-1