motherteresawomenuniv.ac.in TNSET Life Sciences Question Paper : Mother Teresa Women’s University

University : Mother Teresa Women’s University
Exam : TNSET – Tamil Nadu State Eligibility Test 2017
Document Type : Sample Question Paper
Year : 2017
Subject : Life Sciences

Website : http://www.motherteresawomenuniv.ac.in/
Set E : https://www.pdfquestion.in/uploads/11718-LifeSciencesE.pdf
Set F : https://www.pdfquestion.in/uploads/11718-LifeSciencesF.pdf
Set G : https://www.pdfquestion.in/uploads/11718-LifeScienceG.pdf
Set H : https://www.pdfquestion.in/uploads/11718-LifeScienceH.pdf

Mother Teresa TNSET Life Sciences Question Paper

Note :
a. Attempt all the questions.
b. Each question carries two (2) marks.
1. Which is the furanose form of D-ribose?

Related : Mother Teresa Women’s University TNSET Law Question Paper 2017 : www.pdfquestion.in/11716.html

2. Indicate the ionic species that predominates at pH 4, 8 and 11 for ammonia.
1) pH 4, NH4+; pH 8, NH4+; pH 11, NH3
2) pH 4, NH4+; pH 8, NH3+; pH 11, NH2
3) pH 4, NH4+; pH 8, NH3+; pH 11, NH3
4) pH 4, NH3+; pH 8, NH3+; pH 11, NH2

3. All of the following can be chemically isolated except
1) Enzyme – substrate complexes
2) Enzyme – Inhibitor complexes
3) Enzyme – Substrate covalent intermediates
4) Transition states

4. The severe form of galactosemia is
1) a genetic deficiency of a uridyl transferase that exchanges Galactose-1- phosphate for glucose on UDP glucose
2) results from a deficiency of an epimerase
3) insignificant in infants but a major problem in later life
4) an inability to form galactose-1-phosphate

5. Ionophores are
1) the gating mechanisms associated with the transport of ions
2) intrinsic proteins that actively transport ions
3) chemicals that form pores in the plasma membrane and allow ions to pass through
4) intrinsic proteins that passively transport ions

6. The two 80S ribosomal subunits remain united with each other due to high concentration of which of the following ions?
1) K
2) Ca2
3) Mg2
4) Cl

7. Which of the following occurs in meiosis but not in mitosis?
1) Attachment of spindle fibres to the kinetochore
2) Pairing of homologous chromosomes at the metaphase plate
3) Replication of DNA prior to the start of cell division
4) Separation of sister chromatids at anaphase

8. The amount of microbial mass produced from a nutrient can be expressed quantitatively as
1) Cell count
2) Growth yield
3) Balanced growth
4) Dilution rate

9. What is the RNA primers used for Bacteriophage T7 replicating DNA
1) PPP ACCA, PPP ACCC
2) PPP AACC, PPP ACCC
3) PPP ACCA, PPP CCCA
4) PPP ACAC, PPP CCAC

10. The following features of the genetic codes should be observed
I. most amino acids have more than one codon
II. three codons signal termination of polypeptides synthesis the stop codons UAA, UAG and UGA
III. one codon signals initiation of polypeptide synthesis the start codon AUG
Which of the following is true?
1) I is correct II, III are incorrect
2) II is correct I, III are incorrect
3) III is correct II, III are incorrect
4) I, II, III is correct

11. The gal operon has three cistrons,
1) gal E, gal T and gal K
2) gal A, gal B and gal C
3) gal A, gal T and gal K
4) gal E, gal B and gal K

12. Name the RNA polymerase I and type of gene it transcribes
1) 18S, 5.8S and 28S RNA
2) 16S, 3.8S and 18S RNA
3) 5S, 18S and 28S RNA
4) 16S, 5S and 3.8S RNA

13. Stem cell factor is produced mainly by
1) stem cells
2) thymic Epithelium
3) bone marrow stromal cells
4) megakaryocytes

14. The direction of flagellar rotation is modulated by the signaling molecule
1) Che A
2) Che B
3) Che Y
4) Che A-P

15. Familial cancer is caused by
1) a mutation in somatic cell only
2) a mutation in germline cells only
3) a germline mutation and a somatic mutation in affected tissue
4) two germline mutations

16. HIV attacks
1) Tc cells
2) Macrophages
3) TH cells
4) Ts cells

17. Phytochrome action influenced by long day can be substituted by
1) Auxin
2) Anti auxin
3) Cytokinin
4) Gibberllin

18. Animals that exhibit discoidal cleavage pattern in their merobalsitc eggs
1) Sea Urchin and Amphioxus
2) Annelids and Mollusks
3) Mammals and Nematodes
4) Birds and Reptiles

19. Plastochron is a term that speaks about
1) Shoot development
2) Root development
3) Leaf arrangement
4) Leaf development

20. The pattern leaf arrangement where a leaf from a node departs in pairs at right angles in successive nodes is called
1) Alternate phyllotaxy
2) Opposite superposed phyllotaxy
3) Whorled phyllotaxy
4) Opposite descussate phyllotaxy