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olga nikolaevna [1]
3 years ago
13

1. Explain how a doctor might use a pedigree to understand whether a person's disease has a genetic link.

Biology
1 answer:
Whitepunk [10]3 years ago
7 0

Answer no 1:

A pedigree can be described as a chart or a diagram which illustrates the patterns of inheritance among generations of a family. Family history is very important to know the genetic history of a disease and how it runs in a family. A pedigree will let know that what are the probabilities of a disease to occur in the offsprings based on the genetic history.

Answer no 2:

A punnet square can be described  as a diagram which predicts the result of a cross. A genetic cross will let scientists know about the genotype and phenotype of the offsprings that will be produced. It will let us know about carriers as well probability of a disease to occur in offsprings.

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Answer:

Independent variable: type of instrument

Dependent variable: Number of rabbits attracted

Experimental group: The group when he played an instrument

Control group: The group when not playing an instrument

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Explanation:

1. Independent variable is the variable that the experimenter changes or manipulates in an experiment. In this experiment, the variable that is changed is the TYPE OF INSTRUMENT used (clarinet, flute, guitar), hence, it is the independent variable.

2. Dependent variable is the variable that is measured in an experiment. It is the variable that responds to the changes made to the independent variable. In this experiment, the dependent variable is the "NUMBER OF RABBITS ATTRACTED" by the instrument played.

3. Experimental group is the group of an experiment that receives experiment treatment, which is the independent variable. In this case, the experimental group is the GROUP IN WHICH INSTRUMENT WAS PLAYED.

4. Control group is the group that does not receive the experimental treatment. In this case, the control group is the group in which INSTRUMENT WAS NOT PLAYED.

5. Constants are those variables that remains unchanged for all groups throughout the experiment. In this case, one constant is the SAME SONG played.

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