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samantacastillo samantacastillo
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Posts: 171
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A year ago
1) tumour in the pituitary gland may destroy some of the hormone-producing cells. This reduces the levels of hormones released by the pituitary gland.
ag on
Which of the following could be a symptom of this type of tumour in the anterior pituitary gland for a male?
• a. a decrease in secretion of oxytocin
• b. an increase in sperm production
• c an increase in secretion of hOG
• d a decrease in secretion of testosterone


2) The banding patterns on the homologous chromosomes are almost identical. The banding pattern indicates that the same genes are located on the same spot in the chromosomes. The only exception to this is the XY sex chromosome pair in males. The X and Y chromosomes are different shape and size. The tip of X and Y chromosomes contain a region called PAR1, where homologous DNA sequences between the two chromosomes can be found.
Why is the small homologous portion in the X and Y chromosomes necessary?
• a. In mitosis, the sister chromatids need to be bound at this homologous portion during interphase.
• b. In meiosis, the homologous chromosomes need to pair up and segregate during anaphase I.
• c In meiosis, the sister chromatids need to be bound at this homologous portion during interphase.
O d. In mitosis, the homologous chromosomes need to pair up and segregate during anaphase.
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A year ago
Help with moreeee please I don’t have anyone else
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