Biology, 01.02.2022 14:00, AbyssAndre
What kinds of environmental factors influence the expression of traits?
-The amount of UV rays and the amount of calcium
in nutrition.
-The presence of the alleles in the parents.
Answers: 2
Biology, 22.06.2019 05:30, hamptonjeleesa
What is the compliment dna strand to the following sequence: ttgactaggcta
Answers: 1
Biology, 22.06.2019 13:00, archiecom55
Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart
Answers: 1
Biology, 22.06.2019 13:00, mimivenga
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?
Answers: 1
What kinds of environmental factors influence the expression of traits?
-The amount of UV rays and...
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