In Humans, Occasionally a Baby Is Found That Has the XY

question 63

Multiple Choice

In humans, occasionally a baby is found that has the XY chromosomal karyotype but is phenotypically female. Which of the following statements might be a CORRECT explanation for at least some of these unusual cases?

• A) A mutation has occurred in the SRY gene making it inactive.
• B) An extra pierce of autosomal chromosome 15 is probably present in the genome but is too small to be detected.
• C) A small piece of the X chromosome is missing but is too small to be detected.
• D) The Xist gene on the X chromosome is mutated and inactive.
• E) The ratio of number of X chromosomes to number of sets of chromosomes is incorrect.

Comprehend the mechanisms and implications of antibiotic and drug resistance evolution.

Recognize the role of environmental and genetic factors in the prevalence of non-communicable diseases.

Analyze the evolutionary relationship between pathogens and hosts including co-evolution.

Learn about the strategies used in predicting and preventing pandemics.

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Definitions:

Older Adults

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Neural Networks

Computing systems vaguely inspired by the biological neural networks that constitute animal brains, used in machine learning and artificial intelligence.

Neurogenesis

The formation of new neurons.

Brain Cells

The individual units that make up the brain, including neurons which transmit nerve signals, and glial cells which provide support and protection.