Answer: 55
The expected chromosome number in the hybrid would be 55
Explanation:
To obtain the hybrid organism:
- the diploid (2n) cell of horse will undergo meiosis to produce a gamete with halved chromosome. This gamete is with haploid number (n)
Thus, 64 / 2 = 32
- the diploid (2n) cell of Zebra will undergo the same pattern as the horse
Thus, 46 / 2 = 23
Then, the gametes of the two animals will be fused to form a zygote of the hybrid.
32 + 23 = 55
Hence, the zygote will form a diploid hybrid organism with an expected chromosome number of 55
