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Experience with dog breeding has taught geneticists ________.

Which of the following is an example that results from directional selection?

Read the following scenario to answer the following questions.The earliest cells detectable in fossils were different from the cells in animals, plants, fungi, and protists living today. These first prokaryotic cells gave rise to eukaryotic cells approximately 1.7 billion years ago. The structure of eukaryotic cells today suggests how they might have evolved from their prokaryotic ancestors. Scientists examining mitochondria and chloroplasts now think that these organelles were probably free-living prokaryotes before becoming a part of eukaryotic cells long ago.What evidence suggests that mitochondria might have evolved before chloroplasts?

Which of these is a characteristic of Type I survivorship?

When did male fur seals reach carrying capacity?

The word “theory” in theory of evolution is best replaced by ________.

The CORRECT sequence of events occurring during transcription is ________.

The type of reproductive barrier that occurs when two species mate but produce sterile hybrids is referred to as ________.

Consider the following figure. It illustrates that a single amino acid substitution in the hemoglobin gene ________.

Please read the following scenario and then answer the following questions.Molecular biologists have perfected DNA fingerprinting so that it is possible to use the technique to provide evidence to solve crimes and even identify a child’s parents. Recently, a U.S. immigrant asked the U.S. Citizenship and Immigration Services for permission to have her young daughter who was living with grandparents in their homeland join her in the United States. Her request was denied because there was an apparent mix-up with the child’s birth certificate and it could not be used as proof of maternity. Other forms of proof are required in cases such as this. The mother requested DNA fingerprinting to show that she was the mother of the daughter. Samples of DNA were taken from the mother (Mom) and the daughter (D2) as well as from her daughter (D1) and her son (S) living in the United States with her. STR analysis was run on the three samples, and the results are shown below.  You can use this DNA fingerprinting information to make a judgment about maternity because ________.