Question # 1

Photosynthetic pigments organized into clusters are called.

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Tkoids

Photosynthesis

Stroma

Granna

Photosynthesis II has the form of chlorophyll a which absorb best light of

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670 nm

680 nm

690 nm

700 nm

The polyp is reduced and medusa is dominant in

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Actinia

Aurelia

Oblelia

Madreporite

The most abundant organic compound mammalian cell.

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Water

Lipids

Proteins

Carbohydrates

Daily rhythmic opening and closing of stomata is.

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Internal clock

External clock

Both internal and external clock

None of these

Which of the following is a feature of series deuterostomia

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Cleavage of zygote is spiral and determinate

Coelom is formed due to splitting of mesoderm

Mouth arises from blastopore or anterior margin

Mesoderm is derived from wall of developing gut

Fungi grow best in habitats which have

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Moisture & carbon dioxide

Moisture & organic food

Moisture & oxygen

Moisture & light

Which statement is not true to Deuteromycota

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They are also called imperfect fungi

Their asexual spores are called conidia

It is a heterogenous polyphyletic group

They have both sexual and asexual reproduction

Polysiphonia is an example of.

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Red algae

Green algae

Brown Algai

Diatoms

Cap sonars a substitutes which for an capsid viral These capsomeres are chemically.

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Lipids

Nucleic acid

Paramelitids

Carbohydrates

Carbon di oxide enters the leaves through.

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epidermis

Cuticle

Stomata

Air space

Awoman with normal colour vision, whose father was red-green colour blind, married a red-green colour-blind man. What is the probality of her first-born child being red-green colour blind?

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1.0

0.75

0.50

0.025

In amoeba movement takes place by means of

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Cilium

Flageilum

Pseudopodium

Myonemes

Germinating pollen grain is a rich source of

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Gibberellins

Auxins

Cytokinin

Ethene

Young tissues retaining the potential to divide.

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Meristem

Xylem

Phloem

Cork

Which of the following is vestigla organ of whale.

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Pelvis

Leg bones

Pelvis and leg bones

Lungs

The zone, rich in life, in a fresh water lake is called.

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Littoral zone

Profundal zone

Limnetic zone

Deseret

When expression of a biological character is observed in variable intensity, it is due to the efect of:

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Multiple alleles

Codominance

Epitasis

Polygenic inheritance

During cell division, the nuclear division is called.

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Cytokinesis

Karyokinesis

Plasmolysis

Karyotype

³²P and ³⁵S labeled viruses were used in his experiments by

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Watson & Crick

Hershey & Chase

Wilkins & Franklin

Correns & Bridge

The number of nucleotides in the DNA of a typical human chromosome is about

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10 Million

40 million

80 million

140 million

Herbaceous stage in xerosere is the

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First stage

Third stage

Fourth stage

Last stage

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