Biology, 21.02.2021 02:40 coolmonkey3643
The evidence Alfred Wegener used for his continental drift hypothesis did not include glacial movement. types of rocks and mountain ranges. oceanic vocanoes. fossilized remains of ancient plants.
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Biology, 22.06.2019 06:00
Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?
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Biology, 22.06.2019 13:00
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?
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Biology, 22.06.2019 18:20
Ihave a question. diplontic animals usually produce both eggs or sperm which are :
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Biology, 22.06.2019 19:30
Which of the following would most directly interfere with sperm production? ingestion of a substance that mimicked inhibin interruption of sustentocytes' production of abp low sperm count use of synthetic steroids (testosterone)
Answers: 2
The evidence Alfred Wegener used for his continental drift hypothesis did not include glacial moveme...
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