In 1940,two Researchers Named Weiner and Landsteiner Discovered That About

question 56

Multiple Choice

In 1940,two researchers named Weiner and Landsteiner discovered that about 85 percent of the human population sampled possessed a blood cell protein called the Rh factor.The presence of Rh factor was labeled Rh positive (Rh⁺) and was found to be dominant over the absence of the blood factor (Rh^-) .Under normal Mendelian inheritance,which of the following statements is/are false?

• A) Two Rh⁺ parents could have an Rh^- child.
• B) Two Rh^- parents could have an Rh⁺ child.
• C) An Rh^- child would require that both parents be carriers of at least one Rh^- allele.
• D) It is possible with just one pair of parents to have children where some siblings are Rh^- and some are Rh⁺.
• E) Two Rh⁺ parents can have Rh^- or Rh ⁺ children.

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Definitions:

Sleep Latency

The duration of time it takes for a person to transition from full wakefulness to sleep.

Delta Sleep

Refers to deep sleep, during which there is no eye movement or muscle activity. This phase is also known as slow-wave sleep.

REM Sleep

A phase of sleep involving rapid eye movements, where dreaming and increased brain activity occur.

Parasomnia

A category of sleep disorders that involve abnormal and unnatural movements, behaviors, emotions, perceptions, and dreams.