The proportions of the bases are consistent within a species, however they do vary between species.
Using the base-pairing rules, complete the following table to show the percentage of each type of
base in the five different organisms.
Percentage of Each Type of Base
Guanine
Cytosine
Thymine
Organism
Adenine
19
Human
31
Chicken
28
29
Frog
Wheat
Bacteria

What are some possible short and long term medical concerns for crew members on longer space exploration trips

9. the history of life on earth is recorded in

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?