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scject~~

1. Two grey mice are mated. The female gives birth to 4 young mice, of which 1 is grey and 3 are black. What implication can you make from this result?



A. Black hair is dominant to grey hair.
B. One parent is homozygous and the other is heterozygous.
C. All black offspring are homozygous.
D. All grey offspring are heterozygous.



2. Which of the following produce offspring with identical genotypes?



    (1) buds from the same potato tuber
    (2) seeds from the same tomato
    (3) spores from the same bread mould mycelium



A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)

1A
2D

[quote]原帖由 [i]月野[/i] 於 2006-2-20 18:21 發表
1A
2D [/quote]
agree witn you !!!