Biology, 17.11.2020 04:20 Woodsydal2390
Researchers combined sequences of fruit-fly DNA from a gene for a particular trait with frog
DNA. The mixture was heated to separate the DNA strands. Cooling allowed the single strands
to form pairs. The researchers observed that some of the fruit-fly DNA paired with frog DNA.
Fruit fly
Recombined fruit-fly
and frog sequence
DNA sequence
from a gene
Frog
Strands separate when
mixed and heated
Frog DNA
Answers: 2
Biology, 21.06.2019 17:00, gshreya2005
Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d. the size of the geographic area inhabited by a population can cause speciation.
Answers: 2
Biology, 23.06.2019 02:00, ximena68
Acid rain throughout the northeast united states has lowered the ph of many ponds and lakes. the lowered ph will eventually result in the death of many aquatic animals. compare the map of the u. s. with the ph tolerance range for the organisms listed. based on the tolerances seen here, which aquatic organisms are least likely to survive in the northeastern states?
Answers: 1
Researchers combined sequences of fruit-fly DNA from a gene for a particular trait with frog
DNA. T...
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