Tại sao tế bào mạch gỗ được cấu tạo từ tế bào chết, còn mạch rây được cấu tạo từ các tế bào sống

i'm pretty sure it's spores

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.