Answer:
1/2
Explanation:
Father: is a heterozygote for this trait
. Meiosis: 1/2 is the frequency for the normal allele
Mother: has two recessive alleles (i.e., doesn't have the trait). Meiosis: 2/2 is the frequency for the normal allele
In consequence, the probability of having polydactyly is: (1/2) x (2/2): 1/2
I by no means have any knowledge, but common sense leads me to believe it's D.
If several of the following are occurring, it may useful to follow up with a mental health professional.
<span>Withdrawal — Recent social withdrawal and loss of interest in othersDrop in functioning — An unusual drop in functioning, at school, work or social activities, such as quitting sports, failing in school or difficulty performing familiar tasksProblems thinking — Problems with concentration, memory or logical thought and speech that are hard to explainIncreased sensitivity — Heightened sensitivity to sights, sounds, smells or touch; avoidance of over-stimulating situationsApathy — Loss of initiative or desire to participate in any activityFeeling disconnected — A vague feeling of being disconnected from oneself or one’s surroundings; a sense of unrealityIllogical thinking — Unusual or exaggerated beliefs about personal powers to understand meanings or influence events; illogical or “magical” thinking typical of childhood in an adultNervousness — Fear or suspiciousness of others or a strong nervous feelingUnusual behavior – Odd, uncharacteristic, peculiar behaviorSleep or appetite changes — Dramatic sleep and appetite changes or decline in personal care<span>Mood changes — Rapid or dramatic shifts in feelings
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