Which best explains why males have a greater probability of being color blind than females?
a)males only have to inherit the allele on the y chromosome to be color blind.
b)males only have to inherit the color blindness allele once to show the trait.
c)males have to inherit two copies of the color blindness allele to show the trait.
d)males have to inherit the allele on two x chromosomes to be color blind.

A)Males only have to inherit the allele on the Y chromosome to be color blind.

The average resting heart rate (hrrest) for a 34 year old is 73 beats per minute2. 34 year old males average heart rates of 71 bpm while females average slightly higher at 76 bpm2. the normal resting heart rate range for all adults and children 10 and over is between 60 and 100 beats per minute3. 90% of 34 year olds resting pulses fall within the range of 54 to 92 bpm. in general, an adult's resting heart rate will be lower for those in better athletic condition.

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