The Neet important mcqs

1).What is the criterion for DNA fragments movement
on agarose gel during gel electrophoresis ?

(1) The larger the fragment size, the farther it
moves
(2) The smaller the fragment size, the farther it
moves
(3) Positively charged fragments move to farther
end
(4) Negatively charged fragments do not move

2).Which of the following are found in extreme saline
conditions ?
(1) Archaebacteria
(2) Eubacteria
(3) Cyanobacteria
(4) Mycobacteria

3).Attractants and rewards are required for
(1) AnemoPhilY
(2) Entomophily
(3) HYdroPhilY
(4) Cleistogamy

4).Which of the following is made up of dead cells ?
(1) Xylem parenchYma
(2) CollenchYma
(3) Phellem
(4) Phloem

5).Which cells of ‘Crypts of Lieberkuhn’ secrete
antibacterial lysozyrne ?
(1) Argentaffin cells
(2) Paneth cells
(3) Zymogen cells
(4) Kupffer cells