The release of a mature egg from the ovary is called:
A. Menstruation
B. Implantation
C. Fertilization
D. Ovulation
Answer: Option D
Solution (By JKSSB Mock Tests)
Ovulation is the process in the female menstrual cycle where a mature ovarian follicle ruptures and discharges an ovum (secondary oocyte) into the fallopian tube, where it can potentially be fertilized. It typically occurs around the 14th day of a 28-day cycle, triggered by a surge in Luteinizing Hormone (LH).
Explanation:
Transpiration from stomata creates negative water potential in leaves, generating a tension (transpiration pull) that draws water upward through the xylem from roots. This cohesion-tension mechanism is the primary driver of water transport in tall trees. Root pressure and capillary action are minor forces.
Explanation:
Conjugation involves the transfer of plasmid or chromosomal DNA from a donor (F+) to a recipient (F-) through a sex pilus. Transformation is uptake of free DNA, transduction is gene transfer by bacteriophage, mutation is a change in DNA sequence. Conjugation is often considered bacterial mating.
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