Biology 10th Class English Medium Online Test With Answers

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Biology 10th Class English Medium Online Test

Sr. # Questions Answers Choice
1

Inside of double helix consists of:


Nitrogenous bases sugar sugar Phosphate Phosphate
2

Outside back bone of double helix is made up:

<p class="MsoNormal">Sugar <o:p></o:p></p> Phosphate Sugar Phosphate None of these
3

A DNA molecule consists of______ polynucleotide strands.

2 3 4 5
4

In________ James Watson and Francis Crick proposed the structure for DNA.

<p class="MsoNormal">1951 <o:p></o:p></p> 1953 1955 1957
5 DNA wraps around histone protein and forms-rounded structures called as <p class="MsoNormal">Nucleosomes <o:p></o:p></p> Ribosomes Lysosomes mRNA
6 Chromatin is made up of: DNA Protein DNA+ Protein None of these
7 There are how many pairs of homologous chromosomes in human body cell? 22 23 40 46
8 Gene contain instructions for the synthesis of. Fats Carbohydrates Vitamins Proteins
9 Chromosomes carry units of inheritance called as: Chromatin DNA Genes None of these
10 Transmission of characteristics from parents to offsprings is called as: Replication Inheritance co-dominance Mutation
11 Branch of biology that deals with the study of inheritance is called as: Artificial selection Natural selection Genetics Histology
12 Charles Darwin proposed that organisms produce many more offspring than can possible survive on the limited amount of resources available to them. According To Darwin, the offspring that are most likely to survive are those that. Are born first and grow fastest Are largest and most aggressive Have no natural predators Are best adapted to the environment.
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