Ratio of volume of red blood corpuscles to plasma is expressed as

1) Haematocrit

2) Haemocytometer

3) Hematin

4) Haem percentage
 

Persons who are colourblind cannot distinguish

 (1) Red and green
 (2) Black and Yellow
 (3) Green and blue
 (4) Yellow and white

A cross between F1 hybrid and the recessive parent is called

 (1) Test Cross
 (2) Trihybrid Cross
 (3) Dihybrid Cross
 (4) Monohybrid Cross

Both dominant alleles when present together, complement each other and produce a different phenotype. These genes are called

Brunner's glands secrete :
1. Mucus
2. Enterokinase
3. Secretin and Cholecystokinin
4. Both (a) and (c )

Glussina palpalis is a vector for
1. Dengue
2. Filariasis
3. Gambian fever
4. Plague

As it travels along the food chain the concentration
 of DDT

 (1) fluctuates randomly
 (2) stays constant
 (3) decreases
 (4) increases

Inflorescence with thick, fleshy axis and large coloured bracts is

1) Spathe
2) Spadix
3) Spikelet
4) Hypanthodium

Convergent reticulate venation is seen in

 1) Zizyphus
 2) mango
 3) Canna
 4) Castor

Coupling and repulsion are the two aspects of a single phenomena called

 1) crossing over
 2) linkage
 3) synopsis
 4) Chiasma