Biology FSC Part 2 Online MCQ's Test With Answers

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Biology FSC Part 2 Online MCQ's Test

Sr. # Questions Answers Choice
1 A change in the community structure of an ecosystem over a period of time is: Ecological niche Ecological mutation Succession Genetic Drift
2 In which of the following situations would evoluation be lowest for an inter breeding population? <b>Migration Selection Pressure Variation(Due to Mutation) </b>Absent<b> </b>Low Low <b>Migration Selection Pressure Variation(Due to Mutation) </b>Absent<b> </b>High High <b>Migration Selection Pressure Variation(Due to Mutation) </b>High Low High <b>Migration Selection Pressure Variation(Due to Mutation) </b>High<b> </b>High Low
3 Which one of the following pairs represents analogous features? Elephant tusks &amp; Human incisors Insects wings &amp; bat wings Mammal fore limb &amp; bird wing Reptilian heart &amp; mammalism heart
4 The parts of body use extensivly to cope with the environment become larger & stronger, while those that are not used deteriorate was argued by: Charls darwin Alfred wallace Carolus Lamorck
5 Similarity in characteristics resulting from common ancestry is known as: Analogy Homology Evolutionary relationship Phylogeny
6 The study of birds is: Ornithology Ichthyology Herpetology Entomology
7 Which one of the following would cause the hardy-weinberg principle to be inacurate? The size of the population is very large. Individual mate with one another at random Natural selection is present There is no source of new copies of alleles from outside the population
8 Using the hardin-weinberg principle, which expression represents the frequency of the homo-zygous recessive genotype? p<sup>2</sup> 2p q<sup>2</sup> q
9 The existing species are the modified descendants of pre-existing ones according to: Theory of special creation Theory of organic evolution Uniformitarianism Theory of catatrophe
10 Human appendix, coccyx and nictiating membrane of the eye are: Vestigical organs Homologous organs Analogous organs Embroyonic organs
11 The random loss of alleles in a population is called: Mutation Selection Gene flow Genetic drift
12 If the condon consisted of only two nucleotides, there would be how many possible condons? 4 8 <sub>20</sub> 16
13 In Griffith experiment mice developed pneumonia when they were injected with: R-type bacteria Heat killed S-type bacteria Heat killed R-type bases Heat killed S-type becteria along with live R-type becteria
14 In eukaryotic mRNA molecule there are 90 nucleotide involved in translation process. What is the number of amino acid in the protein formed by this mRNA molecules? 29 Amino acids 30 Amino acids 45 Amico acids 90 Amino acids
15 If an mRNA is synthesized with the differnt codons, what is the minimum number of amino acids in the protein that is formed by the mRNA? 64 Amino acids 62 Amino acids 60 Amino acids None of them
16 If the amount of adenine in DNA of a bacterial cell is 36% of the total nitrogenous bases, what will be the amount of guanone in the DNA of a cell in next generations: 14 % 28 % 36 % 64 %
17 In mitochodria UGA codon act to specify __________ instead stop codon: Argenine Valine Glumatic acid Trytophan
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