Biology, 18.03.2021 18:20, dtrdtrdtrdtrdrt3415
12 Rachel is analyzing a DNA sample to identify its base pairs. Her results show that
40% of the sample is adenine. Which other base makes up 40% of the sample?
A cytosine
C thymine
B guanine
Duracil
Answers: 1
Biology, 21.06.2019 16:00, prettygirllniyiaa
Which of the following examples can cause gene flow between populations? a. an increase in predators to a population of zebra b. a volcanic eruption that kills half of a population of mice c. bird droppings that contain seeds from a different location d. a person that sprays a toxin on a group of mosquitoes
Answers: 2
Biology, 22.06.2019 12:30, ryanmorse01
When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles
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
12 Rachel is analyzing a DNA sample to identify its base pairs. Her results show that
40% of the sa...
Spanish, 30.11.2021 02:20
Chemistry, 30.11.2021 02:20
Mathematics, 30.11.2021 02:20
History, 30.11.2021 02:20
Mathematics, 30.11.2021 02:20