Gynaecomastia condition can develop due to

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(D) Gynaecomastia is the development of mammary glands in males,primarily caused by hormonal imbalance. While all men have some level of estrogen,they

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All of these

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(D) Gynaecomastia is the development of mammary glands in males,primarily caused by hormonal imbalance. While all men have some level of estrogen,they usually have much higher levels of testosterone.$1$. Newborn baby boys: Newborns may be affected by gynaecomastia because estrogen passes through the placenta from the mother to the baby. This condition is temporary and disappears within weeks.$2$. Puberty: During puberty,hormone levels fluctuate. If testosterone levels drop,estrogen can cause breast tissue to grow. This resolves as boys grow older and hormone levels stabilize.$3$. Older stage: As men age,they produce less testosterone while estrogen secretion may be relatively higher,and this imbalance results in gynaecomastia.

Column-$I$	Column-$II$
$(1)$ Placenta	$(a)$ Stimulates uterine contraction for parturition
$(2)$ $hPL$	$(b)$ Provides nutrition to the embryo
$(3)$ Relaxin	$(c)$ Antibody in colostrum
$(4)$ $IgA$	$(d)$ Hormone secreted by placenta

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Match the following columns:
Column-$I$ Column-$II$
$(1)$ Placenta $(a)$ Stimulates uterine contraction for parturition
$(2)$ $hPL$ $(b)$ Provides nutrition to the embryo
$(3)$ Relaxin $(c)$ Antibody in colostrum
$(4)$ $IgA$ $(d)$ Hormone secreted by placenta

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