Dozen = 12
12 x 3 = 36
36 light bulbs in total
15 left
so 36 - 15 = 21
answer = 21
Answer:
c. Affected fathers have all affected daughters, but no affected sons.
Explanation:
Given that the disease is caused by a dominant allele on X chromosome, an affected father would have a disease allele in the X chromosome that passes along to the male gamete, while the gametes containing a Y chromosome would not have it (since it is X-linked).
During sexual reproduction, the father passes an X chromosome to its daughters (the second X chromosome being contributed by the mother) but an Y chromosome to its sons (the single X chromosome being contributed by the mother).
Indeed, within an affected father's offspring, all his daughters will receive the affected X chromosome from him, while his sons will receive an unaffected Y chromosome (since the disease is X-linked). These males will not inherit the disease, for they will receive an unaffected X chromosome from her mother (which is expected to be healthy since the disease is rare).
Answer: There is no link between fluoride exposure and increased cancer risk in humans.
The nurse is
assisting a primigravid on calculating the due date of her baby using Naegele’s
rule. The most important information provided by the mother is Expected Date of
Birth. Naegele’s rule is used in Calculating
Estimated/Expected delivery date (EDD). The equation is Last Mentrual
Period minus 3 months plus 7 days plus 1 year.
(Should be approx. 280 days from LMP)
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If I did the math correctly 64% of the population will have curly hair.