Biology 10 Chapter 15 MCQs Test 2

In Biology 10 Chapter 15 MCQs Test 2, there are 15 MCQs. A total of 5 MCQs Tests are available from Chapter 15 of FBISE Class 10 Biology Book. We have prepared 75 multiple-choice questions, which are divided into five MCQs Tests.

Practice
MCQs Test No 2

33

Class 10 Biology
Chapter 15
Practice MCQs Test No 2

1 / 15

Outside backbone of double helix is made up of:

Sugar-phosphate

Phosphate

None of these

Sugar

2 / 15

Specific proteins have specific number and sequence of;

Allele

Loci

Amino Acids

Enzymes

3 / 15

Adenine always pairs with;

Guanine

Uracil

Cytosine

Thymine

4 / 15

How many hydrogen bonds are formed between cytosine and guanine?

2

1

4

3

5 / 15

In 1953,_______ proposed the structure of DNA.

None of these

Both a and b

James Watson

Francis Crick

6 / 15

Specific sequence of DNA nucleotides is copied In the form of mRNA In a process:

Transcription

Inheritance

Translation

Replication

7 / 15

Cytocine always pairs with;

Guanine

Thymine

Uracil

Adenine

8 / 15

Sequence of amino acids in a protein Is controlled by sequence of __________ In DNA.

Nucleotides

Genes

alleles

Loci

9 / 15

In ________ James Watson and Francis Crick proposed the structure of DNA.

1957

1955

1953

1951

10 / 15

Inside of double helix consists of:

Sugar

Sugar-phosphate

Phosphate

Nitrogenous bases

11 / 15

Copies of chromatids of chromosomes are made through the process called;

Replication

Transcription

Translation

Inheritance

12 / 15

The position of gene on chromosome is known as;

Genome

Locus

Genotype

Allele

13 / 15

Ribosome reads the sequence of mRNA nucleotides and joins specific amino acids to form proteins. This step is known as;

Transcription

Translation

Combination

Replication

14 / 15

A DNA molecule consists of ______ polynucleotide strands.

3

4

2

5

15 / 15

How many hydrogen bonds are formed between adenine and thymine?

3

2

1

4

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