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Estrogen is the key hormone responsible for the development of secondary sexual characteristics in females.
Ref: NCERT Class 12 Biology Chapter 2: Human Reproduction Menstrual Cycle Fertilization Implantation Pregnancy Parturition Lactation
Progesterone, secreted by the corpus luteum and placenta, plays a key role in maintaining pregnancy.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Gonads - Testis and Ovary Hormones
Progesterone helps maintain pregnancy by preventing uterine contractions and supporting the uterine lining.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Gonads - Testis and Ovary Hormones
After ovulation, the corpus luteum secretes progesterone, which helps maintain pregnancy.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Gonads - Testis and Ovary Hormones
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