1. Plant biotechnology involves :- A. Production of valuable products from plants B. Rapid clonal multiplication of desired genotypes C. Production of virus free plants D. All of these 2. Cris – cross inheritance applies to which type of the gene inheritance :- A. Sex liked gene inheritance B. Sex influenced gene inheritance C. Sex
1. Selection generation after generation with the intercrossing of selects is :- A. Mass selection B. Full sib selection C. Half sib selection D. Recurrent selection 2. 2n – 2 represents :- A. Nullisomic B. Tetrasomic C. Trisomic D. Monosomic 3. 2VF₂ – (VB1₁ + VB₂) is equal to :- A. 1/4 D B. 1/2
1. If the cell is placed in hypertonic solution, what will happen? (a) Endosmosis (b) Exosmosis (c) Deplasmolysis (d) No change 2. The soil is physiologically dry when: (a) It has no hygroscopic water (b) Conc. of soil solution is high er than cell (c) Soil temp. is 4 Degree Celsius (d) Excess of CO2
1. The rusts are caused by (a) Ustilaginales (b) Peronosporales (c) Uredinales (d) Erysiphales 2. The whip smut of sugarcane is caused by (a) Ustilago maydis (b) Ustilago hordei (c) Ustilago scitaminea (d) Ustilago nuda 3. Loose smut of wheat is caused by (a) Ustilago (b) Cystopus (c) Puccinia (d) Aspergillus 4. Neurospora sitophila is
1. Eukaryotes differ from prokaryote in mechanism of DNA replication due to (a) Use of DNA primer rather than RNA primer (b) Different enzyme for synthesis of lagging and leading strands (c) Discontinuous rather than semi-discontinuous replication (d) Unidirectional rather than semi-discontinuous replication 2. Which of the following does not code for an enzyme having
1. Coenobium type of thallus organization is seen in, A. Zygnematales B. Cladophorales C. Volvocales D. Dasycladales 2. Which one of the following shall be given priority for conservation? A. Monotypic genus under EN category B. A species of a large genus with CR category C. A species of a large genus with EN category
1. Covered smut of barley is caused by (A) Ustilago nuda (B) Ustilago tritici (C) Ustilago hordei (D) Ustilago grdminis 2. Green mould is common name for (A) Neurospora (B) Mucor (C) Penicillium (D) Saccharomyces 3. The most economically important bryophyte among the following is (A) Funaria (B) Marchantia (C) Riccia (D) Sphagnum 4. Gemma
1. Which of the following does not develop from tap root system? (A) Napiform root (B) Conical root (C) Fusiform root (D) Moniliform root 2. Cladodes are produced by (A) Opuntia (B) Asparagus (C) Cocoloba (D) Euphorbia 3. The adventitious root system is usually (A) surface feeder (B) subsurface feeder (C) deep feeder (D) very
1. Which of these is not an example of sexual reproduction in bacteria? A. Transfusion B. Transformation C. Transduction D. Conjugation 2. Bacteria utilized for making Yoghurt is: A. Lactobacillus acidophilus B. Lactobaciilus lactis C. Lactobacillus vulgericus D. Lactobacillus baloricus 3. In homo-sapiens infertility is caused by which organism? A. Mycoplasma pneumonia B. Mycoplasma homonis
