H.Bio DNA replication & protein synthesis

Which choice describes DNA after replication has taken place?

• one molecule with two original strands and one molecule with two new strands
• two molecules, each with one original and one new strand
• two molecules, each with two new strands
•  two molecules, each with two old strands

Which of the following carries amino acids to the site of protein synthesis? 

• mRNA
• rRNA
• tRNA
• nRNA

The diagram below represents a portion of a DNA molecule. The letters represent different types of 

• sugar molecules
• nitrogen bases
• enzymes
• proteins

DNA is copied during a process called ______________ which results in an identical copy of itself.

• Photosynthesis
• Transcription
• Replication
• Translation

Genes contain instructions for assembling _______________.

• Nucleosomes
• Proteins
• Purines
• Pyrimidines

Unlike DNA, RNA contains...

• a phosphate group
• thymine
• guanine
• uracil

What is produced during transcription?

• Protein
• tRNA
• mRNA
• DNA

In eukaryotes, DNA:

• floats freely in the cytoplasm
• is found in the nucleus
• is wrapped within the ribosome
• is circular

The two strands of DNA are held together by:

• Hydrogen Bonds
• Phosphodiester Bonds
• Glycolsyl Bonds
• Glycosidic Linkages

Tags

NGSS.HS-LS1-1

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

• cytosine
• guanine
• thymine
• uracil