Presence of plants arranged into well-defined vertical layers depending on their height can be seen best in:

1. Tropical Rain Forest

2. Grassland

3. Temperate Forest

4. Tropical Savannah

Which of the following statements is correct?

Alexander Von Humboldt described for the first time:

1. Laws of limiting factor

2. Species-Area relationships

3. Population Growth equations

4. Ecological Biodiversity

Zygotic meiosis is characteristic of?

1. Fucus

2. Funaria

3. Chlamydomonas

4. Marchantia

If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?

Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:

Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?

Life cycles of Ectocarpus and Fucus respectively are:

1. Diplontic, Haplodiplontic

2. Haplodiplontic, Diplontic

3. Haplodiplontic, Haplontic

4. Haplontic, Diplontic

A gene whose expression helps to identify transformed cell is known as:
1. Vector
2. Plasmid
3. Structural gene
4. Selectable marker

A dioecious flowering plant prevents both:

1. Autogamy and geitonogamy

2. Geitonogamy and xenogamy

3. Cleistogamy and xenogamy

4. Autogamy and xenogamy