Mice (mus musculus) have 40 chromosomes per diploid cell (2n = 40). how many double- stranded dna molecules and how many chromosomes are there in a mouse cell that is in the g2 stage of the cell cycle?

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?

Electrons are brought to the electron transport system by the oxidation of

What would you do for a patient who you think is experiencing a cerebrovascular accident (cva)?