The Presence of an Extra X Chromosome Is More Likely

question 127

Multiple Choice

The presence of an extra X chromosome is more likely to result in a viable human fetus than an extra copy of an autosome because:

• A)expression of genes from the X chromosome is restricted to early development of females.
• B)the X chromosome carries few genes, so dosage is not a problem.
• C)the X and the Y chromosomes do not recombine along most of their length.
• D)the X chromosome is the "female" chromosome.
• E)None of the answer options is correct.

Understand the concept of shaping and its practical applications.

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Apply operant conditioning principles in behavior analysis and modification.

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Definitions:

Doses

Quantified amounts of a substance or medication intended for administration or consumption to achieve a desired effect.

Effects

The outcomes or changes that result from a particular action, situation, or condition.

Depressants

Substances that reduce the activity of the central nervous system, leading to relaxation, decreased anxiety, and sleepiness.

Barbiturates

Drugs that depress central nervous system activity, reducing anxiety but impairing memory and judgment.