Trisomy 21,or Down Syndrome,occurs When There Is a Normal Diploid

question 34

Essay

Trisomy 21,or Down syndrome,occurs when there is a normal diploid chromosomal complement of 46 chromosomes plus one (extra)chromosome #21.Such individuals therefore have 47 chromosomes.Assume that a mating occurs between a female with Down syndrome and a normal 46-chromosome male.What proportion of the offspring would be expected to have Down syndrome? Justify your answer.

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Definitions:

Efficient-Market Hypothesis

A theory that suggests that financial markets fully absorb and reflect all available information, making it impossible to consistently achieve higher returns than the market average.

Small Investor

An individual investor who makes relatively small amounts of investments in the stock market or other financial markets, often with limited resources.

Mutual Funds

Mutual funds are investment vehicles comprised of a pool of funds collected from many investors for the purpose of investing in securities such as stocks, bonds, money market instruments, and other assets.

Abnormal Return

A term in finance that refers to the difference between an actual investment return and the expected return, based on the asset's risk and market movements.