Question
What are endocrine glands?
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Explain the different factors responsible for genetic variations.
| Column I (Organic Acids] | Column II (Microbial source) |
| (1) Citric acid | (a) Rhizopus arrhizus |
| (2) Fumaric acid | (b) Acetobacter aceti |
| (3) Gluconic acid | (c) Aspergillus niger |
| (4) Acetic acid | (d) Aspergillus niger |
| Column I [Contraceptive method] | Column II [Mode of action] |
| (1) Pill | (a) Prevents sperms reaching cervix |
| (2) Condom | (b) Prevents implantation |
| (3) Vasectomy | (c) Prevents ovulation |
| (4) Copper T | (d) Semen contains no sperms |