Question # 1

Asexual reproduction in yeast occurs by.

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Conidia

Fragmentation

Budding

Resting spores

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

Ceratium belongs to group of algae called.

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Diatoms

Red algae

Brown algae

Dinoflagellates

Funaria is an example of.

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Hepaticopside

Bryopsida

Anthoceropsida

Psilophyta

The power house of the cell is

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Ribosome

RER

SER

Mitochondria

An aphid that attacks Walnut tree is being controlled biologically by.

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House

Honey bee

Mosquito

Wasp

Length of the duodenum is.

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15-20 cm

20-25 cm

30-35 cm

10-15 cm

Excretory system in arthropods is composed of.

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Kidney

Nephridia

Malpighian tubules

Flame cells

Veins are the blood vessels which transport blood from body cells towards.

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Brain

Kidney

Liver

Heart

Which one of the following statements about enzymes is not true

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They consist of proteins or without a non-proteins part

They change the rate of catalyzed reaction

They are sensitive to heat

They are non-specific in their action

A group of ribosome attached to mRNA is known as

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Lysosome

Peroxisome

Poly some

Glyoxisome

In neurons the message is transmitted across synapse in the form of chemical messenger called.

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Nerve impulse

Synaptic vesicle

Neurotransmitters

Communlaction

Identical twins result from the fertilization of:

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One ovum by the sperm

One ovum by the two sperms

Two ova by two sperms

Two ova by one sperm

Unequal separation of chromosomes is called.

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Disjunction

Separation

Non disjunction

Metastasis

Most land mammals respond to cold by raising their.

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skin

Furs

Bristles

Spines

Pairing of homologous chromosomes for tetrad formation starts at.

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Leptotene

Zygotene

Diplotene

Pachytene

Find secreted by Sertoli cells provides liquid medium, protection and nourishment to.

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Oocyte

Sperms

Polar body

Spermatids

Neck Region is called.

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Lumber region

Thoracic region

Cortical region

Pelvic region

The receptor cells of Planaria are sensitive to.

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Light and pressure

Light pressure and touch

Touch , pressure and chemicals

Light, pressure, touch and chemicals

The amount of energy left plants have met their respiratory needs is net eprimary production , which shows up as plant:

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Respiration rate

Photosynthesis

Biomass

Food reserve

The producers in limnetic zone are

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Amoebae

Cyanobacteria

Crustaceans

Hydrilla

Which of the following behaves like normal cells.

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Benign tumor

Cancer

Gall

Malignant tumor

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