A gene is said to be dominant, if _____.

1. 1. It is never expressed in any condition
   2. It is expressed only in heterozygous
   3. It is expressed both in heterozygous and heterozygous condition
   4. It expresses its effect only in heterozygous state

Nutrition in fungi is_____.

1. 1. Photosynthetic
   2. Absorptive heterotrophs
   3. Chemosynthetic
   4. Completely parasitic

Out of total organisms on earth,_____ are vascular plants.

1. 1. 0.531
   2. 0.176
   3. 0.199
   4. 0.094

Which statement correctly describes the transcription of DNA?

1. 1. It produces another DNA molecule
   2. It is a semi conservation process
   3. It occurs at surface of ribosomes
   4. It produces mRNA

Which of the following cell organelles is absent in animal cells and present in a plant cell?

1. 1. Cell wall
   2. Cytoplasm
   3. Vacuoles
   4. Mitochondria

Out of 92 naturally occurring chemical elements how many are considered as bio-elements?

1. 1. 14
   2. 15
   3. 16
   4. 18

Diatoms stay afloat due to_____.

1. 1. Stored lpids
   2. Flagella
   3. Pseudopodia
   4. None of these

Sweat glands occur in greatest number in the skin of the_____.

1. 1. Armpits
   2. Forehead
   3. Back
   4. Palm of hand

It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect?

1. 1. Older sediment layers have equal amount of these radioactive isotopes as that of the young ones
   2. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones
   3. Older sediment layers did not have these radioactive isotopes
   4. Older sediment layers have less amount of these radioactive isotopes as that of the young ones

More than _____compounds of tar of tobacco smoke are involved to cause cancer.

1. 1. 10
   2. 15
   3. 20
   4. 25