Check Last Draft DNA and RNA Quiz 15 Questions checking

DNA and RNA - Quiz 1

Form 4 Biology Online Exams

Somaliland Biology Exam Practices

Ombiology4u

Teacher - AHMED OMAAR

ISKU DAY WACAN

Quiz Developed By Ombiology4u - Macalin Axmed Omaar

1.The building blocks of DNA and RNA is called

Ans: [Nucleotides]

2.All of the following are the functions of a DNA, except

Ans: [Transport of amino acids]

3.A nucleotide is made up of

Ans: [Phosphate group, sugar and base]

4.What organic molecule is DNA?

Ans: [Nucleic acid]

5.What is the function of RNA?

Ans: [Carries genetic information from DNA to make proteins]

6.DNA molecule contains all the following, except

Ans: [Sugar ribose]

7.RNA molecule contains all the following, except

Ans: [Sugar deoxyribose]

8.Which of the following base pair is not correct

Ans: [Adenine - cytocine]

9.If one strand of DNA contains ATGCC bases, the complementary strand would contain

Ans: [TACGG]

10.In a double stranded DNA, the two strands are held together by

Ans: [Hydrogen bonds]

11.Which of the following is a purine base?

Ans: [Adenine] Explanation: Nitrogenous bases are divided into two groups, which are Purine bases and Pyramidine bases. Purine bases are adenine and guanine, while pyramidine bases are cytosine, thymine and uracil.

12.DNA and RNA are similar in terms of what?

Ans: [Both consist of a sugar, a phosphate group and a base]

13.Which of the following is not true about DNA?

Ans: [Single stranded]

14.All of the following bases are pyrimidine bases, except.

Ans: [Guanine] Explanation: Nitrogenous bases are divided into two groups, which are Purine bases and Pyramidine bases. Purine bases are guanine and adenine, while pyramidine bases are cytosine, thymine and uracil.

15.Analysis of a strand of DNA shows that it contains 23% thymine. What is the percentage of guanine that it contains?

Ans: [27%]

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