Choose the correct answer from the four options given below:

Choose the correct answer from the four options given below:

(i) The cell component visible only during cell division:

1. Mitochondria
2. Chloroplast
3. Chromosome
4. Chromatin

(ii) Pulse wave is mainly caused by the:

1. Systole of atria
2. Diastole of atria
3. Systole of the left ventricle
4. Systole of the right ventricle

(iii) The recessive gene is one that expresses itself in:

1. Heterozygous condition
2. Homozygous condition
3. F₂ generation
4. Y-linked inheritance

(iv) A gland which secretes both hormone and enzyme is the:

1. Pituitary
2. Pancreas
3. Thyroid
4. Adrenal

(v) The ventral root ganglion of the spinal cord contains cell bodies of the: