In a tobacco plant,the male gametes have $24$ chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote?

(N/A) In a tobacco plant,the male gamete is a haploid cell $(n)$ containing $24$ chromosomes.
Since the female gamete is also a haploid cell $(n)$,it will also contain $24$ chromosomes.
The zygote is formed by the fusion of the male and female gametes,making it a diploid cell $(2n)$.
Therefore,the number of chromosomes in the zygote is $24 + 24 = 48$.