Question # 1

Animal obtain carbohydrates mainly from

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Glycogen

Cellulose

Glucose

Amino acids

In root nodules bacteria convert nitrogen into.

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Ammonia

Nitrate

Urea

Nitrite

The volume of the blood in a normal person, plasma constitutes about.

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15%

25%

55%

75%

The inner layer of most sponges is called.

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Pinacoderm

Choanoderm

Epiderm

Endoderm

Peptide bond is a

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C-N link

C-O link

N-H link

C-H link

Pasteur's main achievements are the development of vaccines for diseases

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Cholera, rabies only

Anthrax, rabies only

Anthrax, fowl cholera and rabies

None of the above

Reindeer moss used as food for reindeer is

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Moss

Mold

Club fungi

Lichen

Which one of following is not cell but the fragment of large cells.

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Basophils

Leucocytes

Platelets

Erythrocytes

All fungal nuclei are haploid except for transient diploid.

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spores

Zygota

Conidia

Zygospores

Ribosomes are chemically composed of

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Only protein

Only DNA

Only RNA

Both a and c

Guttation occurs in plants through.

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Cutitle

Hydathodes

stomata

Lenticels

Some amoeboflagellates ingested cyanobacteria and led to the development of

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Mitochondria

Golgi apparatus

Chloroplasts

Vacuoles

Which animal moves by Jet propulsion

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Earth worm

Star fish

Jelly fish

Snail

What will occur if a drug at the neuromuscular junction blocks the receptors sites on the post-synaptic membrane?

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Inhibition of Acetylchlorine release

Muscle contraction

Muscle paralysis

Release of calcium ions

A man bolld group A marries a women of blood goroup B and they have one child. Which one of the following statements abo ut the child's blood is correct?

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It could be group A only

It could be group AB only

It could be group A or Group B only

It could be any of the groups A,B,AB, O

The base pairs in human genome are.

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Two billion

Three billion

Four billion

Five billion

Inheritance of skin colour in man is controlled by eight pairs of genes , which are:

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Linked

Codominent

Multiple alleles

Assorting independently

The fossil fuels are

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Coal

Oil

Gas

All a,b and c

The earth surface covered with water is

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35%

11%

21%

33%

How many million nucleotides are in DNA of typical human chromosome

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140

160

180

200

Each muscle fibre contains a large number of myofibrils having a diameter of

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1 - 2 mm

1 - 5 mm

2 - 4 mm

3 - 7 mm

The most critical phase of mitosis, which ensures equal distribution of chromatids in the daughter cells is.

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Prophase

Tele phase

Meta phase

Anaphase

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