Based only the sex chromosomes in typical human egg and sperm cells at fertilition, the probability of producing a fmale is

a 25%
b 50%
c 75%
d 90%

Once a woman attains puberty, her overuse mature and release one egg per ovarian cycle. which hormone stimulates this event?

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d

Explain why scientists use the word dominant for certain traits.