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101.

Centrionles haveA. 9+2arrangement of microtubulesB. 9 peripheral doublet microtubulesC. 2 centrally located microtubulesD. An organisation like the wheel

Answer» Correct Answer - D
Discussion
102.

Function of telomers in nucleus isA. Poleward movementB. To initiate the RNA synthesisC. To seal the enad of chromosomeD. To recognise the homologous chromosome

Answer» Correct Answer - C
Discussion
103.

Which of the following occurs more than one and less than five in a chromosome?A. ChromatidB. ChromosomeC. CentromereD. Telomere

Answer» Correct Answer - D
Discussion
104.

Ribosomes are produced inA. NucleolusB. CytoplamC. MitochondriaD. Golgi body

Answer» Correct Answer - A
Discussion
105.

What is true about ribosomes ?A. These are found only in eukaryotic cellsB. These are self- splicin introns of some RNAsC. The prokaryotic ribrosomes are 80S , where "s" stands for sedimentation coefficientD. These are composed of ribonucleic acid and proteins

Answer» Correct Answer - D
Discussion
106.

The subunits of ribosomes of a prokaryotic cell areA. 60S and40SB. 20S and 90SC. 50S and 30SD. 30S and 30S

Answer» Correct Answer - C
Discussion
107.

Plasma membrane isA. Semipermeable and symmetricB. Selectively permeable , elastic and asymmetricC. Permeable and asymmetricD. Selective permeable with monolayer phospholipids

Answer» Correct Answer - B
Discussion
108.

Each centriole has a cart wheel organisation having a whorl of tubulin fibrils at periphery. These peripheral fibrils are composed of how many microtubules?A. 11B. 18C. 9D. 27

Answer» Correct Answer - D
Discussion
109.

Chromatin is essentially composed ofA. DNA onlyB. DNA and histonesC. RNA onlyD. RNA and ribosomes

Answer» Correct Answer - B
Discussion
110.

The nucleus of a cell was discovered byA. SchleidenB. SchwannC. Robert BrownD. Camillo Golgi

Answer» Correct Answer - C
Discussion
111.

Chromatin found in nucleus was discovered byA. FlemmingB. SchleidenC. SchwannD. Robert Brown

Answer» Correct Answer - A
Discussion
112.

The nucleus was discovered by_______inA. Robert Hoole, 1931B. Anton van Leeuwenhoek, 1906C. Robert Brown,1831D. Schleiden, 1981

Answer» Correct Answer - C
Discussion
113.

Robert Hoole discovered the - of a cellA. cell membraneB. NucleusC. cell wallD. cytoplasm

Answer» Correct Answer - C
Discussion