Question # 1

Downs syndrome (Mongolism) occurs in man during which 21^st chromosome falls to segregate resulting gamete with

Choose an answer

20 chromosomes

21 chromosomes

22 chromosomes

24 chromosomes

On the basis of structure and shape of the cap,two species of Acetabularia have been identified

Choose an answer

Acetabularia mediterrance & A.crenulata

A.typhi & A.mediterranea

A.crenulate & A.sisso

A.crenulata & A.arabica

Which enzyme acts as molecular scissors.

Choose an answer

DNA ligase

DNA polymerase

RNA polymerase

Restriction endonuclease

Meiosis occurs only in

Choose an answer

Haploid cell

Diploid cells

Pentaploid cells

Triploid cells

During non conducting state the neuron membrane is permeable to efflux of.

Choose an answer

Cl-

Ca

Ca+

Na+

K+

Which one of the following is not endotherm.

Choose an answer

Bird

Amphibian

Mammal

Flying insect

In sub humid tropical grassland rate of primary production is more than

Choose an answer

2000 g/m²

3000 g/m²

4000 g/m²

6000 g/m²

The total energy of the sun, trapped by the producer in an ecosystem is about.

Choose an answer

20%

01%

10%

30%

Abdomen has a peritoneal cavity lined by a thin epithelium called

Choose an answer

Pericardium

Peritoneum

Scrotal sac

Pleura

The loss of water due to ex osmosis from plant cells causes plant to.

Choose an answer

Turgid

Wilt

Rupfure

Seell

A cluster of neuron's cell bodies form

Choose an answer

Ganglia

Cyst

Lump

Swelling

A natural process in which surface soil is removed by the action of water or wind is

Choose an answer

Corrosion

Attrition

Erosion

Weathering

Angular thickenings in their primary walls are present in.

Choose an answer

Parenchyma

Collenchyma

Tracheids

Sclernchyma

A bone is ot a part of pelvic girdle.

Choose an answer

Tillum

Ischium

Humerus

Pubis

The internal hydrostatic pressure in plants is.

Choose an answer

Root

Turgor

Osmotic

Solute

The fusion of four posterior vertebrae present in the pelvic region from.

Choose an answer

Sacrum

Lumber

coccys

Chest cage

Which of the following is K bone of axial skeleton.

Choose an answer

Humerus

Femus

Tibia

Rib

Jean Baptiste Lamarck published his theory of evolution in

Choose an answer

1757

1809

1859

1945

More Classes

Other Links

Biology FSC Part 2 Online MCQ's Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer