Molecular Genetics

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

What determines the code, or information, of a DNA molecule?

• the shape (structure) of the nitrogen bases
• the order (sequence) of the nitrogen bases
• the color of the nitrogen bases
• the frequency (number) of nitrogen bases

Tags

NGSS.HS-LS1-1

The process of making an mRNA strand from a DNA template is called

• Replication
• Transcription
• Translation
• Protein Synthesis

Transcription takes place in the 

• cytoplasm
• chloroplast
• nucleus
• mitochondria

STRUCTURE: One difference between RNA and DNA is -

• RNA has thymine where DNA has ademine

• DNA is single stranded where RNA is double stranded

• DNA is made in the nucleus where RNA is made in the ribosomes

• RNA is single stranded where DNA is double stranded

STRUCTURE: What Nitrogenous Base does RNA contain that DNA does not?

• Thymine

• Uracil

• Adenine

• Love

STRUCTURE: In the DNA double helix, the bases (AtoT and CtoG) are held together by:

• polar bonds

• ionic bonds

• covalent bonds

• hydrogen bonds

TRANSLATION:

This is

• tRNA

• mRNA

• DNA

• a ribosome

Tags

NGSS.HS-LS1-1

HISTORY: Took the X-Ray crystallography photographs that revealed that DNA is a Double Helix

• Rosalind Franklin

• Linnus Pauling

• Fredrick Griffeth

• Martha Chase

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

• cytosine
• guanine
• thymine
• uracil