減數分裂問題(英文)及翻譯

1.for a species with a haploid(單倍體) number of 23 chromosomes (染色體) , how many different combinations of maternal and paternal chromosomes are possible for the gametes(配子) ?
a)23
b)46
c)460
d)920
e)about 8 million

2.if the DNA content of diploid cell(雙倍染色體細胞) in the G1 phase of the cell cycle is x , then the DNA content of the same cell at metaphase (中期) of meiosis(減數分裂) i would be
a)0.25x
b)0.5x
c)x
d)2x
e)4x