DNA AND RNA MULTIPLE CHOICE QUESTIONS

Direction:  Read the questions below and write the letter of your chosen answer.

1.       Which of the following is not a basic building block of DNA?

a.       Bases

b.      Sugar

c.       Phosphate

d.      Uracil

2.      What do you call the sugar present in RNA?

a.       Glucose

b.      Sucrose

c.       Ribose

d.      Deoxyribose

3.      Which of the following nitrogen bases is not found in DNA?

a.       Guanine

b.      Thymine

c.       Cytosine

d.      Uracil

4.      It’s a double helix molecule composed of complimentary strands of deoxyribonucleotide units.

a.       tRNA

b.      rRNA

c.       mRNA

d.      DNA

5.      If adenine bond with uracil in RNA, adenine bond with _______ in DNA.

a.       Thymine

b.      Guanine

c.       Cytosine

d.      Phosphate

6.      It’s a process of making copies of DNA.

a.       translation

b.      Replication

c.       Mutation

d.      Transcription

7.      The first mRNA codon to specify an amino acid is always

a.       TAC

b.      UAA

c.       UAG

d.      AUG

8.      The process of converting the information in mRNA into a sequence of amino acids that make a protein.

a.       translation

b.      Replication

c.       Mutation

d.      Transcription

9.      Transfer RNA’s bind during translation by the

a.       Codon

b.      Anticodon

c.       Template

d.      Amino acid

10.  Which one of the following is not a type of RNA?

a.       nRNA (nuclear RNA)

b.      mRNA (messenger RNA)

c.       rRNA (ribosomal  RNA)

d.      tRNA (transfer RNA)

11.  Which type of mutation can pass on to offspring?

a.       Reproductive mutation

b.      Gene mutation

c.       Chromosome mutation

d.      Blood mutation

12.  In terms of DNA and RNA structure, what is nucleotide?

a.       A nucleotide is a heterocyclic base.

b.      A nucleotide is a sugar molecule covalently bonded to heterocyclic base.

c.       A nucleotide is a sugar molecule bonded to phosphate group/s and heterocyclic base.

d.      A nucleotide is heterocyclic base bonded to phosphate group.

13.  It is a condition caused by the deletion of the part of the short arm of chromosome 5.

a.       Down syndrome

b.      Cri du chat

c.       Edwards syndrome

d.      Jacobsen syndrome

14.  A condition usually caused by an extra copy of chromosome 21.

a.       Down syndrome

b.      Cri du chat

c.       Edwards syndrome

d.      Jacobsen syndrome

15.  A test that can be used to detect the abnormalities associated with chromosome structure.

a.       Pregnancy test

b.      Urinalysis

c.       Karyotype

d.      Ultrasound test