Biology, 25.06.2019 05:30 QueenNerdy889
Arecessive allele a. occurs as a regulatory gene only b. needs to be present on only one chromosome to be expressed c. is never expressed d. needs to be present on both chromosomes to be expressed
Answers: 1
Biology, 22.06.2019 07:30
Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.
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Biology, 22.06.2019 10:30
Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?
Answers: 3
Biology, 22.06.2019 11:30
According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes
Answers: 3
Biology, 22.06.2019 16:40
An alaskan spruce forest will burn easily once burned the forest regenerates fairly wuickly which statement best describes haw an alaskan spruce forest reacts to fire? it is resilient
Answers: 1
Arecessive allele a. occurs as a regulatory gene only b. needs to be present on only one chromosome...
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