Practice A1.2 Nucleic acids with authentic IB Biology exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
What allows complementary base pairing to occur between strands of DNA?
Complementary base pairing enables replication and transcription. What condition is required for base pairing to occur accurately?
Which feature is present in RNA but not in DNA?
DNA is used as genetic material by all living organisms. What inference can be drawn from the fact that some viruses use RNA instead of DNA?
The antiparallel nature of DNA strands is crucial to its structure. Which pairing best reflects the orientation of two complementary strands?
In both DNA and RNA, nucleotides are linked together to form a strand. What type of bonding connects the sugar of one nucleotide to the phosphate of the next?
MCQ | Level: SL | Paper: 1
What occurs during the condensation reaction between nucleotides during DNA synthesis?
Insulin is a protein containing 51 amino acids. How many nucleotides in the mRNA strand will code directly for these amino acids?
DNA is found in all living organisms. Which other molecule can act as the genetic material in some viruses?
What allows DNA to store a virtually unlimited amount of genetic information?
Practice A1.2 Nucleic acids with authentic IB Biology exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
What allows complementary base pairing to occur between strands of DNA?
Complementary base pairing enables replication and transcription. What condition is required for base pairing to occur accurately?
Which feature is present in RNA but not in DNA?
DNA is used as genetic material by all living organisms. What inference can be drawn from the fact that some viruses use RNA instead of DNA?
The antiparallel nature of DNA strands is crucial to its structure. Which pairing best reflects the orientation of two complementary strands?
In both DNA and RNA, nucleotides are linked together to form a strand. What type of bonding connects the sugar of one nucleotide to the phosphate of the next?
MCQ | Level: SL | Paper: 1
What occurs during the condensation reaction between nucleotides during DNA synthesis?
Insulin is a protein containing 51 amino acids. How many nucleotides in the mRNA strand will code directly for these amino acids?
DNA is found in all living organisms. Which other molecule can act as the genetic material in some viruses?
What allows DNA to store a virtually unlimited amount of genetic information?