Question

a. bacteriophage b. nucleotides c. chargaffs rule d. nucleic acids

1. a type of virus that infects and replicates within bacteria.
2. a principle stating that in dna, the amount of adenine (a) equals thymine (t), and the amount of guanine (g) equals cytosine (c).
3. the basic building blocks of nucleic acids, consisting of a sugar, a phosphate group, and a nitrogenous base.
4. biomacromolecules, such as dna and rna, that store and transmit genetic information.

a. hershey-chase experiment b. nitrogenous bases c. dna d. telomeres

1. deoxyribonucleic acid; the molecule that carries the genetic instructions for life.
2. a landmark experiment that demonstrated that dna is the genetic material of viruses.
3. organic molecules that are the building blocks of nucleotides; includes adenine (a), thymine (t), cytosine (c), and guanine (g).
4. repetitive nucleotide sequences at the ends of chromosomes that protect them from deterioration.

a. base pairing b. dna polymerase c. replication d. rna

1. ribonucleic acid; a single stranded nucleic acid that contains the sugar ribose.
2. the specific pairing of nitrogenous bases in dna; adenine pairs with thymine, and cytosine pairs with guanine.
3. the process of copying dna to create identical strands.
4. an enzyme that synthesizes new dna strands during replication.

Explanation:

1. Bacteriophage is defined as a virus infecting bacteria.
2. Chargaff's Rule states the base - pairing equality in DNA.
3. Nucleotides are the building blocks of nucleic acids.
4. Nucleic Acids (like DNA and RNA) store genetic info.
5. DNA (Deoxyribonucleic acid) carries genetic instructions.
6. Hershey - Chase Experiment proved DNA as viral genetic material.
7. Nitrogenous Bases (A, T, C, G) are nucleotide building blocks.
8. Telomeres are chromosome - end protective sequences.
9. RNA (Ribonucleic acid) is single - stranded with ribose.
10. Base Pairing is the specific DNA base - pairing.
11. Replication is DNA copying process.
12. DNA Polymerase synthesizes new DNA strands.

Answer:

1. A. Bacteriophage
2. C. Chargaff's Rule
3. B. Nucleotides
4. D. Nucleic Acids
5. C. DNA
6. A. Hershey - Chase Experiment
7. B. Nitrogenous Bases
8. D. Telomeres
9. D. RNA
10. A. Base Pairing
11. C. Replication
12. B. DNA Polymerase