Which of the following diseases is caused by a protozoan transmitted by the tsetse fly? MCQ with Answer and Explanation

Explanation:
The genetic code is read in triplets of nucleotides called codons, each specifying an amino acid. AUG is the universal start codon, which also codes for methionine. In eukaryotic genes, introns are non-coding intervening sequences that are spliced out, while exons are the coding sequences that remain in the mature mRNA. Thus, statements 1 and 2 are correct.

Explanation:
Sponges are the simplest multicellular animals with a cellular level of organization (no true tissues or organs). They are mostly marine, sessile, filter feeders. Water enters through numerous pores (ostia) into a spongocoel and exits through the osculum. They lack a nervous system. They possess specialized cells like choanocytes and amoebocytes but no coordination.

Explanation:
Ovulation is the rupture of the mature Graafian follicle and release of a secondary oocyte from the ovary, typically around day 14 of a 28-day menstrual cycle, triggered by LH surge. Menstruation is the shedding of uterine lining. Fertilization is fusion of sperm and ovum, implantation is embedding of blastocyst in the endometrium.