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Published on: 13/05/2022
QB365 provides detailed and simple solution for every Creative Questions in class 12 Biology Subject. It will helps to get more idea about question pattern in every Creative questions with solution.
latest Creative QuestionsDownload Tamil Nadu 12th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
Statement 1: Pairing of homologous chromosome is called as syndesis.
Statement 2: Proterminal synapsis occurs from telomeres.
Statement 1 is correct and Statement 2 is incorrect
Statement 1 is incorrect and Statement 2 is correct
Both the statements are correct
Both the statements are incorrect
2.
Statement 1: Euploidy involves entire sets of chromosomes
Statement 2: Aneuploidy involves individual chromosomes within a diploid net.
Statement 1 is correct and Statement 2 is incorrect
Statement 1 is incorrect and Statement 2 is correct
Both the statements are correct
Both the statements are incorrect
3.
In a population of 250 progenies produced, only 120 resemble the parental forms. Calculate the recombinant frequency.
66%
52%
59%
49%
4.
Which of the following statement(s) is/are wrong with respect to Recombination process?
(i) Mitotic crossing over occurs rarely in somatic cells.
(ii) Syndesis refers to pairing of non-homologous chromosome.
(iii) Procentric synapsis starts from telomeres.
(iv) A Bivalent has four chromatids.
i and iv
ii and i
ii and iii
All the above
5.
Which is not a feature of the chromosomal theory of inheritance?
Somatic cells of organisms are derived from zygote by repeated meiosis.
Chromosomes retain their structural uniqueness throughout the life of an organism.
Mendelian factors are located in chromosomes
Sutton and Boveri independently proposed the theory.
1.
(a)
Statement 1 is correct and Statement 2 is incorrect
2.
(c)
Both the statements are correct
3.
(b)
52%
4.
(c)
ii and iii
5.
(a)
Somatic cells of organisms are derived from zygote by repeated meiosis.
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