Which one of the following statements is correct about Saccharomyces cerevisiae?

Amniocentesis is used to detect the :

Identify the correct sequence of structures formed during spermatogenesis.
(A) Spermatozoa
(B) Secondary spermatocytes
(C) Spermatogonia
(D) Spermatids
Choose the correct answer from the options given below:

Match List - I with List - II.

List - I	List - II
(A) Pollination between two flowers on different plants	(I) Syngamy
(B) Fusion of male gamete with egg cell	(II) Cleistogamous
(C) Pollination between two flowers of the same plant	(III) Xenogamy
(D) Closed flowers	(IV) Geitonogamy

Choose the correct answer from the options given below:

The negatively charged DNA is wrapped around the positively charged histone octamer and forms a structure, called:

Match List - I with List - II

List - I	List - II
(A) Charles Darwin	(I) Theory of Populations
(B) Lamarck	(II) Mutation caused speciation
(C) Hugo de Vries	(III) Use and disuse of organs
(D) Thomas Malthus	(IV) H.M.S. Beagle

Choose the correct answer from the options given below :

If 50000 J energy available to primary producer, then energy available to tertiary consumer will be:

A bulb and a capacitor are connected in series to an a.c. source. A dielectric slab is now introduced between the plates of the capacitor. The intensity of the bulb will be:

In the presence of air, phenols are slowly oxidised to dark coloured mixture containing-

MONOHYBRID CROSS
The inheritance of flower color in the dog flower (Snapdragon or Antirrhinum sp.) can be understood by crossbreeding between true-breeding red-flowered (RR) and true-breeding white-flowered plants (rr). When they were crossed, F₁ (Rr) was pink. When F₁ was self-pollinated, the F₂ results were Red, Pink and White. Here the genotype ratios were exactly as expected, but the phenotype ratios have been changed. What happened was that R was not completely dominant over r and this made it possible to distinguish Rr as pink from RR (Red) and rr (White).
What was the expected phenotypic ratio in any Mendelian monohybrid cross that had changed when F₁ (Rr) was self-pollinated in this cross?

The area of the region bounded by \(x=y^2\) and the line \(x=4\) in square units is :

Given two independent events A and B such that P(A) = 0.3 and P(B) = 0.6,
Match the following:

List - I	List - II
(A) P(A and B)	(I) 0.28
(B) P(A and not B)	(II) 0.72
(C) P(A or B)	(III) 0.12
(D) P(neither A nor B)	(Iv) 0.18

The compound does not respond to iodoform test is :