Question

1. dna is stored in {}.

a. adenine c. chromosomes
b. rna d. ribosomes

1. what shape does dna take?

a. single helix c. x formation
b. double helix d. y formation

1. dna is made of structures called {}, which include a sugar, a phosphate, and a base.

a. guanfacines c. nuclei
b. adenines d. nucleotides

1. how many types of bases constitute dna code?

a. 3 c. 5
b. 4 d. 6

1. which dna base pairing is correct?

a. guanine and adenine c. thymine and guanine
b. adenine and cytosine d. adenine and thymine

Explanation:

Question 1

Adenine is a base in DNA, RNA is a different nucleic acid, ribosomes are for protein synthesis. Chromosomes are structures in cells that store DNA.

DNA's structure is known to be a double helix (two strands twisted), single helix is incorrect, X/Y formations don't describe DNA's shape.

Nucleotides are the building blocks of DNA, each with sugar, phosphate, and base. Guanfacines are a drug, adenines are a base, nuclei are cell organelles' parts.

Answer:

C. chromosomes

Question 2