All phostosynthetic euglenoids lose their chlorophyll when grown in dark and obtain their nutrients heterotrophically this statement is_____.

1. 1. False
   2. True
   3. May be true may be false
   4. Unpredictable

Messenger RNA is formed in_____.

1. 1. Chloroplast
   2. Mitochondria
   3. Nucleus
   4. All of these

A chemical substance that reacts with enzyme but is not transformed into product and thus blocking active site is called_____.

1. 1. Substrate
   2. Inhibitor
   3. Co-factor
   4. Promotor

Ribosomes were discovered by_____.

1. 1. Palade
   2. Golgi
   3. De Duve
   4. R.Brown

Which of the following occurs in anaerobic respiration but not in aerobic respiration?

1. 1. Release of CO2
   2. Reduction of NAD
   3. Production of ethanol from acetaldehyde
   4. Formation of ATP

Sythetic insulin from pork was formed by which technique_____.

1. 1. Parasitology
   2. Biotechnology
   3. Social biological techniques
   4. Both a and b

An enzyme which converts a dipeptide into separate amino acids is an example of_____.

1. 1. Oxidoreductase
   2. Decarboxylase
   3. Transferase
   4. Hydrolase

Embryonic induction is caused by part developing from_____.

1. 1. Mesoderm
   2. Endoderm
   3. Ectoderm
   4. Extraembryonic layers

Hydra has no specialized excretory system because:

1. 1. Due to absence of mesoderm
   2. It does not produce waste material
   3. It has pseudocoelom.
   4. The whole body cells are in contact with water

Which one of the following syndrome is the result of meiotic non dysjunction?

1. 1. Turners syndrome
   2. Klinefelters syndrome
   3. Downs syndrome
   4. All of these