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Bio DNA Review
Bio DNA & RNA Test Review
Question | Answer |
---|---|
What is the major purpose of mRNA? | to help DNA make proteins |
Sugar is part of the DNA nucleotide called ... | deoxyribose |
When pairing DNA, the A goes with ... | T |
When pairing DNA, the T goes with ... | A |
When pairing DNA, the C goes with ... | G |
When pairing DNA, the G goes with ... | C |
What two parts make up the sides of the DNA ladder? | sugar and phosphate |
What is the result of DNA replication? | two identical molecules |
What are the building blocks of a polypeptide? | amino acids |
What is another name for a polypeptide? | protein |
What two scientists discovered the DNA molecule/structure? | Watson and Crick |
Who discovered the Xray/photo of DNA? | Rosalind Franklin |
What is a gene composed of? | it is composed of specific sequences of DNA nucleotides |
What is a gene? | a segment of the chromosomes that defines one feature of an organism |
What is transcription? | a process where DNA forms mRNA |
How does DNA differ from RNA? | RNA containes uracil and not thymine and the RNA is single stranded whereas DNA is double stranded |
What is a codon? | three bases that codes for a specific amino acid |
Where is a codon found? | it is found in mRNA |
What is a base that is found only in DNA? | thymine |
Where is mRNA made? | in the nucleus |
When looking at a drawing, what is between the sugars on the side of DNA? | phosphate |
What is substitution? | when a single base changes to another base in the DNA nucleotide sequence |
What does DNA stand for? | Deoxyribonucleic Acid |
DNA is the shape of ... | a double helix where two strands are wound around each other |
Why is the genetic code universal? | all living organisms use the same bases |
What molecule is part of ribosomes? | rRNA |
What molecule contains the original information that codes for making proteins? | DNA |