What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg?
- A$1$:$2$,Sperm has $X$ or $Y$ chromosome while egg has $X$
- B$2$:$1$,Sperm has $X$ or $Y$ chromosome while egg has $X$
- C$1$:$1$,Sperm has $X$ or $Y$ chromosome while egg has $Y$
- D$1$:$2$,Sperm has $X$ chromosome while egg has $Y$
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