Which of the following organisms occupy the first trophic level in an ecosystem?

Match List-l with List-ll

List-l (Abbreviation used in reproductive health)	List-II (Features)
(A) IVF	(I) Sperm is directly injected into the ovum
(B) ZIFT	(II) Transfer of ovum from a doner into the fallopian tube of recipient
(C) GIFT	(III) Embryos with more than 8 blastomers is transfered into the uterus
(D) ICSI	(IV) Fertilisation outside the body

Choose the correct answer from the options given below:

Match List - I with List - II.

List I	List ll
(A) Haemophilia	(I) Increase in a whole set of chromosomes in an organism
(B) Turner's Syndrome	(II) Autosome linked recessive trait
(C) Polyploidy	(III) Absence of one of the 'X' chromosome
(D) Sickle cell anaemia	(IV) Sex linked recessive disease

Choose the correct answer from the options given below:

In Sickle-cell anemia, the substitution of amino acid in the globin protein results due to the single base substitution at the sixth codon of the beta globin gene from:

We use microbes and microbially derived products almost every day. Bacteria called lactic acid bacteria (LAB) grow in milk to convert it into curd. The dough, which is used to make bread, is fermented by yeast called Saccharomyces cerevisiae. Microbes are used to produce industrial products like lactic acid, acetic acid and alcohol, which are used in a variety of processes in the industry. However, certain bacteria, which grow anaerobically on cellulosic material, produce large amount of methane along with CO2 and H2. These bacteria are collectively called methanogens, and one such common bacterium is Methanobacterium. These bacteria are commonly found in the anaerobic sludge during sewage treatment. Microbes are also used for commercial and industrial production of certain chemicals like organic acids, alcohols and enzymes.
Examples of acid producers are Aspergillus niger (a fungus) of citric acid. You are familiar with the commonly used antibiotic Penicillin. Do you know that Penicillin was the first antibiotic to be discovered, and it was a chance discovery? Statins produced by the yeast Monascus purpureus have been commercialised as blood-cholesterol lowering agents. It acts by competitively inhibiting the enzyme responsible for synthesis of cholesterol.
Which one of the following statements is not true with respect to microbes?

The traits which are controlled by more than one gene are known as:

Which one of the following disorders is a sex linked recessive disease?

The point on the curve \(y^2=x\), where the tangent makes an angle of \(\frac{\pi}{4}\) with x-axis is:

If in a plano-convex lens, the radius of the convex surface is 10 cm and the focal length is 30 cm. Then the refractive index of the material will be :

Answer the question on the basis of passage given below :
One of the notable features of the transition element is the great variety of oxidation states it may show in its compounds. The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example exhibits all the oxidation states from +2 to +7. The lesser number of oxidation states at the extreme ends is either due to losing or sharing of few electrons (Sc, Ti) or too many d electrons of higher valence. Early in the first series scandium (II) is virtually unknown and titanium (IV) which is more stable than Ti (III) or Ti (II). On the other end, the only oxidation state of zinc is \(+ 2\).
For balancing the given reaction, value of \(x\) will be.
\(4 FeCr_2 O_4+Na_2 CO_3+7 O_2 \longrightarrow x Na_2 CrO_4+2 Fe_2 O_3+8 CO_2\)

An astronomical telescope of ten fold angular magnification has a length of 44 cm. The focal length of the objective is:

The general solution of \(\frac{d y}{d x}=1+x^2+y^2+x^2 y^2\) is:
(given that \(C\) is the constant of integration)

Match List-I with List-II

List-I	List-II
(A) Output always opposite of input	(I) NOR
(B) Output 1 only when all inputs are 0	(II) NAND
(C) Output 0 only when all inputs are 1	(III) OR
(D) Output 1 when all inputs are 1	(IV) NOT

Choose the correct answer from the options given below: