Binomial system of nomenclature means that every organism has

1) Two names one scientific and the other popular
2) One name given by two scientists
3) One scientific name consisting of a generic and specific name
4) A number in an international catalogue by which it can be identified

An earth worm has
1. one eye
2. Two eyes
3. Many eyes
4. No eye

Significance of treating bacterial cells with calcium chloride before transformation is to facilitate

1) Binding of DNA to the cell surface
2) Uptake of DNA through membrane transport proteins
3) Uptake of DNA by creating transient pores in the bacterial cell wall.
4) Expression of antibiotic resistance gene

The coconut and mango fruits are
1. Berries
2. Drupes
3. Hesperidium
4. Pomes

Which of the following does NOT affect the heart beat rate
1. Adrenalin
2. Acetylcholine
3. Non-adrenalin
4. Insulin

Cottony downy growth or superficially occurring powder substrance in diseased plants is referred to as
1. Rust
2. Smut
3. Scab
4. Mildew

The lens in the eye of rabbit can not be moved forwards and backwards for accommodation. Yet it manage to focus because of its
1. shape
2. placement
3. flexibility
4. size

Which of the following distinguishes prophase 1 of meiosis from prophase of mitosis?
 1) homologous chromosomes pair up
 2) spindle forms
 3) nuclear membrane breaks down
 4) chromosomes become visible

 The spindle fibres arise from
 1. Centriole
 2. Centromere
 3. Nucleus
 4. Mitochondria

In some ferns the egg cell in the archegonium forms a sporophyte without fertilization. It is
1. Apogamy
2. Apospory
3. Autogamy
4. Porthenogenesis