Amino acids are linked together in proteins by which type of bond? MCQ with Answer and Explanation

Explanation:
The uterus (womb) is a muscular organ where the fertilized egg implants in the thickened endometrium and develops into a fetus during pregnancy. The ovaries produce eggs, the fallopian tubes are the site of fertilization, and the vagina is the birth canal. The endometrium is shed during menstruation if no pregnancy occurs.

Explanation:
Plague is caused by Yersinia pestis and transmitted to humans by the bite of infected fleas (from rodents), thus vector-borne. Common cold is airborne, typhoid is water/food-borne, tetanus enters through wounds from soil. Other vector-borne diseases include malaria (mosquito), dengue (mosquito), Lyme disease (tick).

Explanation:
Vitamin B₆ exists in three forms: pyridoxine, pyridoxal, and pyridoxamine. Its active form, pyridoxal phosphate (PLP), is a coenzyme in amino acid metabolism and neurotransmitter synthesis. Deficiency can cause peripheral neuropathy and anemia.