4. why are transcription and translation two separate but necessary steps for protein
synthesis? in other words, why can't the dna code be read and translated directly?
phobhos and dhemos are the two moons of mars.
fertilization is the process of male sperm cell and female egg cell joining together to form a zygote
a, because natural selection can only act upon existing traits. if there is no genetic variation and there is only one trait, then there's no favoring 'for' or 'against' phenomenon. genetic variation equates to many different traits being present in a population, so natural selection can pick out which traits are the best by increasing the frequencies of those traits that allow the organism to live longer and reproduce more.