MHT-CET PCB 02 — MHT - CET STD 12 Science — Question

The angular momentum of electron in hydrogen atom is proportional to ____________.

Transverse waves of the same frequency are generated in two steel wires A and B. The diameter of A is twice that of B and the tension in A is half that in B. The ratio of the velocities of waves in A and B is ____________.

Identify the statementls that is/are NOT the correct reason/s for Mendel's success in his hybridization experiments.

i. Each factor controlled the single trait and is located on separate chromosomes.

ii. In the pea plant, contrasting characters can be easily recognized.

iii. Mendel carefully recorded the number of plants of each type and expressed his results as ratios.

iv. Mendel performed biochemical assays for identifying the position of 'factors' on chromosome.

The overlap of orbitals involved in the formation of C - Br bond in vinyl bromide is ______.

Identify the female gametophyte in angiosperms.

The ratio of energy required to raise a satellite to a height `(2R)/3` above earth's surface to that required to put it into the orbit at the same height is ______.

R = radius of the earth

Which of the following is also known as Bleeder's disease?

Match the List I with List II and List ill. Select the correct option.

	List I		List II		List ill
i.	Hind III	a.	Agarose ge	1.	Six base pairs
ii.	pBR322	b.	Agrobacterium	2.	Selectable marke
iii.	T-DNA	c.	Ampicillin	3.	Elution
iv.	DNA	d.	Recognition sequenc	4.	Transgenic plant