Home
Class 12
BIOLOGY
A: The axoneme of eukaryotic flagellum p...

A: The axoneme of eukaryotic flagellum possesses a number of microtunles running parallel to the long axis.ltBRgt R: It has a pair of peripheal doublet and pair of centrally located microtubules.

A

if both Assertion & Reason are true and the reason in the correct explanation of the assertion, then mark(1).

B

if both Assertion & Reason are true and the reason in the correct explanation of the assertion, then mark(2).

C

if Assertion is the ture statement but Reason is false, then mark(3)

D

if both Assertion and Reaosn are false statements, then mark(4)

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CELL:THE UNIT OF LIFE

    AAKASH INSTITUTE|Exercise Try Yourself|26 Videos
  • CELL:THE UNIT OF LIFE

    AAKASH INSTITUTE|Exercise Assignment (section-C) ( Previous Year Qusetion)|114 Videos
  • CELL CYCLE AND CELL DIVISION

    AAKASH INSTITUTE|Exercise SECTION-D (Assertion-Reason Type Questions )|10 Videos
  • CHEMICAL COORDINATION AND INTEGRATION

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-D)|10 Videos

Similar Questions

Explore conceptually related problems

Assertion : The arrangement of axonemal microtubules in cilia or flagella is called 9 + 2 array. Reason : The axoneme usually has nine pairs or doubles of radially arranged peripheral microtubules, and a pair of centrally located microtubules.

In the axoneme of cilium, the pair of central microtubules are connected to peripheral microtubules (doublet) by

L = sqrt(l(l+1)) (h)/(2pi) On the other hand, m determines Z-component of orbital angular momentum as L_(z) = m ((h)/(2pi)) Hund's rule states that in degenerate orbitals electron s do not pair up unless and until each such orbital has got an electron with parallel spins. Besides orbital motion, an electron also possess spin-motion. spin may be clockwise and anti-clockwise. Both thes spin motions are called two spin states of electron characterised by spin. s = +(1)/(2) and s =- (1)/(2) , respectively. The orbital angular momentum of electron (l =1) makes an angle of 45^(@) from Z-axis. The L_(z) of electron will be

Fill in the blanks : (i) According to Watson and Ctick model, the DNA molecule consists of ............... long, parallel strands. The two strands are .............. around a common axis in a regular manner to form a ........... helix. (ii) These strands are made of ............ units. Each such unit consists of .......... , ......... and ............. (iii) In each chain, nitrogenous base molecules are joined to the sugar molecules by ............ bonds and project into the space enclosed in the helix at about .......... to the long axis of the helix. (iv) The nitrogenous bare may be a 9-membered, double ringed ....... or a 6-membered, single ringed ....... (v) The double helix of DNA has a constant diameter of ......... and one complete spiral (turn) of the helix is .......... long and has ........ base pairs. (vi) The mode of DNA replication is ........... (vii) Enzyme ............ cannot initiate the synthesis of a new DNA strand, although it can catalyze the growth of a DNA chain. Therefore, a short chain of .......... is formed on the DNA template at the 5' end. This is called ........ (viii) During DNA replication, one new strand is formed in continuous stretch in the 5' - 3' direction. It is called ........... strand. Other strand is formed in small fragments called .......... which are later joined to form a continuous strand termed ............ strand.