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Sometimes a few chromosomes have non-sta...

Sometimes a few chromosomes have non-staining secondary constrictions at a constant location. This gives the appearance of small fragment called the

A

Satellite

B

Centromere

C

Telomere

D

Kinetochore

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Sometimes a few chromosomes have non staining secondary constriction at a constant location, this gives the appearance of a small fragement called the:-

Part of chromosome after secondary constriction is called :-

The small part of chromosomes beyond secondary constriction is called :

Read the assertion and reason carefully to mark the correct option in question. Assertion: Secondary constriction gives appearance of small fragment called the satellite. Reason: Few chromosomes have non-staining secondary constriction at a variable location.

Two solild spheres manufactured of the same material freely fall down in the air. One sphere has a dimeter twice as large as the other. The force due to air resistance is proportional to the cross-section area of a moving object and is quadration function of the speed of an object and is quadration function of the speed of an object. In sometime after the beginning of motion in the presence of air resistance, the velocity of each sphere become constant. It is called the terminal velocity v_(big)//v_(small) is

Assertion :- Secondary constriction is called as NOR. Reason:- Nucleolus is associated with secondary constriction of chromosome.

How many of the given statements are incorrect? A. The ovaries are located on each side of the lower abdomen. B. Mons pubis a cushion of fatty tissue covered by skin and pubic hair. C. A primary spermatocyte completes the second meiotic division leading to the formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each. D. The secondary follicles get surrounded by more layers of granulosa cells and a new theca, they are called tertiary follicles.

Two large non conducting plates having surface charge densities +sigma and -sigma respectively, are fixed d distnce apart. A small test charge q of mass m is attached to two non conducting springs each of spring constant k as shown in the figure. The sum of lengths of both springs in underformed state is d . The charge q is released from rest with both the springs nondeformed. then charge q will (neglect gravity)

Most of the polyatomic molecules except a few such as CO_(2) and CS_(2) are linear or angular with a bond angle generally somewhat greater than 90^(@) A bond angle is defined as the angle between the direction of two covalent bonds Since the atoms in molecules are in constant motion with respect to each other they are not expected to have a fixed value of bond angle Repulsion between non-bonded atoms alone does not provide an adequate explanation Hybridisation of bonding orbitals an adequate explanation Hybridisation of bonding orbitals also plays a very important role in detrmining the value of bond angle It has been observed that in hybridisation as the s-character of hybrid orbital increases the bond angle increases Which of the following have highest bond angle ? .

NTA MOCK TESTS-NEET MOCK TEST 11-BIOLOGY
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  3. Sometimes a few chromosomes have non-staining secondary constrictions ...

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  10. A scrubber in the exhaust of a chemical industrial plant removes:

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  11. Find incorrect statement w.r.t. pollen grains.

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  17. The anterior pitiuitary hormone that does not stimulate another endocr...

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  18. Mark the ODD one out.

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