In drosophila, assume that the gene for scute bristles (s) is located at map position 0.0 and that the gene for ruby eyes (r) is at position 15.0. both genes are located on the x chromosome and are recessive to their wild-type alleles. a cross is made between scute-bristled females and ruby-eyed males. phenotypically wild-type f1 females were then mated to homozygous double mutant males, and 1000 offspring were produced. give the phenotypes and frequencies expected.

In order to clone adult animals, scientists typically begin with a(n)

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).