Gene Expression & Regulation

Synthesizes a new protein using instructions on mRNA

• translation

• transcription

• transistor

• transylvania

What is the name given to part of a DNA molecule that codes for a protein?

• Glucose
• Chromosome
• Gene
• Phosphate

Tags

NGSS.HS-LS1-1

The central dogma of biology states that information flows in one direction from 

• nuclei to RNA to cytoplasm
• ribosomes to proteins to DNA
• genes to nuclei to ribosomes
• DNA to RNA to proteins

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

In RNA, Uracil pairs with ______. 

• cytosine
• adenine
• guanine
• thymine

what does a promoter do?

• it allows a gene to be transcribed
• it creates a DNA segment
• it is another word for ribosomes
• it is another word for RNA

Which molecule brings the amino acid to the ribosome?

• DNA
• mRNA
• tRNA
• rRNA

How many different amino acids are there?

• 15
• 20
• 40
• 100

Which of the following best describes how DNA and RNA are similar?

• they both contain A and T
• They both have a double helix
• They are both composed of 5 different nucleotides
• they both have C and G

Which of the following is NOT true of a codon?

• It may code for the same amino acid as another codon.
• It never codes for more than one amino acid.
• It extends from one end of a tRNA molecule.
• It is the basic unit of the genetic code.

In eukaryotic cells, transcription cannot begin until 

• the two DNA strands have completely separated and exposed the promoter.
• several transcription factors have bound to the promoter.
• the 5' caps are removed from the mRNA.
• the DNA introns are removed from the template.