Ovulation in the human female normally takes place during which phase of the menstrual cycle:

1. Just before the end of the secretory cycle.

2. At the beginning of the proliferative phase.

3. At the end of the proliferative phase.

4. At the mid-secretory phase.

Injury to the vagus nerve in humans is not likely to affect:

1. Gastrointestinal movements

2. Pancreatic secretion

3. Cardiac movements

4. Tongue movements 

Which of the following hormones is not a secretion product of the human placenta:

1. Prolactin

2. Estrogen

3. Progesterone

4. Human chorionic gonadotropin 

An ovule that becomes curved so that the nucellus and embryo sac lies at right angles to the funicle is:

1. Campylotropous

2. Anatropous

3. Orthotropous

4. Hemitropous

Angiosperms have dominated the land flora primarily because of their:

1. Property of producing a large number of seeds
2. Nature of self-pollination
3. Domestication by man
4. Power of adaptability in diverse habitat 

The edible part of the mango is:
1. Receptacle
2. Epicarp
3. Mesocarp
4. Endocarp

In chloroplasts, chlorophyll is present in the:
1. Inner membrane
2. Thylakoids
3. Stroma
4. Outer membrane

In glycolysis, during oxidation, electrons are removed by:
1. Glyceraldehyde-3-phosphate
2. NAD⁺
3. Molecular oxygen
4. ATP

The dough kept overnight in warm weather becomes soft and spongy because of:

1. Fermentation

2. Cohesion

3. Osmosis

4. Absorption of carbon dioxide from the atmosphere

In the somatic cell cycle: