Biology Class 10th MCQs | 10th Class Biology Solved MCQs Online Test

10th Class Biology English Medium Online Test For Full Book

Sr. #	Questions	Answers Choice
1	How many hydrogen bounds are formed between adenine and thymine?	1 2 3 4
2	Cytocine always pairs with:	Guanine Adenine Uracil Thymine
3	Adenine always pairs with:	thymine Uracil Cytosine Guanine
4	Adenine always pairs with:	Guanine Cytosine Uracil thymine
5	Inside of double helix consists of:	Nitrogenous bases sugar sugar Phosphate Phosphate
6	Outside back bone of double helix is made up:	<p class="MsoNormal">Sugar <o:p></o:p></p> Phosphate Sugar Phosphate None of these
7	A DNA molecule consists of______ polynucleotide strands.	2 3 4 5
8	In________ James Watson and Francis Crick proposed the structure for DNA.	<p class="MsoNormal">1951 <o:p></o:p></p> 1953 1955 1957
9	DNA wraps around histone protein and forms-rounded structures called as	<p class="MsoNormal">Nucleosomes <o:p></o:p></p> Ribosomes Lysosomes mRNA
10	Chromatin is made up of:	DNA Protein DNA+ Protein None of these
11	There are how many pairs of homologous chromosomes in human body cell?	22 23 40 46
12	Gene contain instructions for the synthesis of.	Fats Carbohydrates Vitamins Proteins