Human Reproduction: MCQ Test

81. What is the haploid number of chromosomes in human secondary spermatocytes?

• 23
• 46
• 92
• Variable

82. The outer skin fold covering the glans penis is called the:

• Urethral meatus
• Scrotum
• Foreskin
• Ejaculatory duct

83. What is the significance of the increased levels of hormones like estrogens, progestogens, cortisol, prolactin, and thyroxine during pregnancy?

• They initiate parturition.
• They suppress fetal growth.
• They are essential for supporting fetal growth, metabolic changes in the mother, and maintenance of pregnancy.
• They cause degeneration of the placenta.

84. Stem cells, with the potency to give rise to all tissues and organs, are found in which part of the early embryo?

• Trophoblast
• Zona pellucida
• Inner cell mass
• First polar body

85. By the end of 12 weeks (first trimester) of pregnancy, which major developmental milestone is achieved?

• Heart formation
• First foetal movements
• Most major organ systems are formed, and external genital organs are well-developed
• Body covered with fine hair and eyelids separate

86. The condition where menstrual cycles cease around 50 years of age is termed as:

• Menarche
• Andropause
• Menopause
• Lactation