Male Baldness Info

Which of the following allows for DNA to make identical copies during interphase?
A) the helical structure
B) the complimentary nitrogen base pairs
C) the imbedded proteins throughout the DNA molecule
D) none of the above
Pattern baldness in males is a trait found on the “x” sex chromosome (pair 23). Which of the following is a true statement?
A) If a boys father is bald, he has a fifty percent chance of also being bald.
B) Baldness can only be inherited from the mother.
C) All males have a twenty-five percent chance of inheriting pattern baldness.
D) none of the above
Which of the following is NOT part of a DNA molecule?
A) nitrogen base
B) phosphate
C) potassium
D) sugar
Thankyou. The most detailed, and best answer will not only recieve the best answer award, but also a thumbs up, and the 2 points for answering the question. (A total of 13 points.)

Which is a simple, autosomal dominant-recessive trait?
(1) hen-feathered in fowl
(2) hemophilia
(3) red-green color blindness
(4) male pattern baldness
(5) eye color
Which of the following is indicative of females?
(1) XX allosomes
(2) Barr bodies
(3) inactive X chromosome
(4) all of the above
(5) none of the above
If the probability of producing a male offspring is 1/2, what is the probability that the first three offspring will all be males?
(1) 1/2
(2) 1/4
(3) 1/6
(4) 1/8
(5) none of the above
IS 1/8 THE CORRECT ANSWER FOR THIS ONE??