Biology, 13.03.2020 16:43 RealStephani
Researchers noted that about half of all species of bacteria contain small segments of DNA of about 20–50 base pairs derived from plasmids or viruses. The phrase clustered regularly interspaced short palindromic repeats (CRISPR) describes the organization of these viral DNA segments in the bacterial genome. Bacteria use CRISPR to:
a. transcribe RNA that combines with a protein that has an RNA-cleaving function.
b. copy part of the bacterial genome and incorporate it into a viral genome.
c. "remember" the first time it was infected with a virus.
d. transcribe RNA that combines with a protein that has a DNA-cleaving function.
e. identify viral DNA by complementary base pairing with RNA.
f. identify viral DNA by complementary base pairing with template DNA.
Answers: 3
Biology, 21.06.2019 18:00
What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.
Answers: 3
Biology, 21.06.2019 23:30
Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.
Answers: 1
Biology, 21.06.2019 23:50
Looking at this image, what relationship can be drawn from it? the lower the degree of latitude, the lower the degree of temperature there is no relationship between latitude and temperature the higher the degree of latitude, the higher the degree of temperature the lower the degree of latitude, the higher the degree of temperature
Answers: 1
Researchers noted that about half of all species of bacteria contain small segments of DNA of about...
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