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yarga [219]
3 years ago
11

A student plans to measure the circumference of a balloon at various temperatures to determine how temperature affects the volum

e of a gas. What is the independent variable in this experiment?
Biology
1 answer:
nignag [31]3 years ago
4 0
I think the independent variable is the temperature, while the dependent variable is the size of the balloon. The factor that is held constant is the amount of air in the balloon. An identical balloon kept at the original temperature. Independent variable in an experiment is the variable that the experiment plans to change while the dependent variable is the variable whose value depends on the independent variable. 
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Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. Which Punnett square represents the corre
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Answer:

A punnet square can be described as a diagram which depicts the outcomes of the genotype and phenotype of offsprings from a cross between parents. A cross in which a single trait is being considered is a monohybrid cross. A cross in which two traits are being studied is considered as a dihybrid cross.

The punnet square for such a cross can be made as follows:

           RY             RY         rY          rY

RY    RRYY       RRYY       RrYY      RrYy

RY    RRYY       RRYY       RrYY      RrYY

Ry     RRYy        RRYy       RrYy       RrYy

Ry     RRYy        RRYy       RrYy       RrYy

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3 years ago
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During which phase of mitosis do the chromosomes become distinctly visible in the microscope?
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Prophase of mitosis do the chromosomes become distinctly visible in the microscope.

During metaphase, the nucleus dissolves and the cell's chromosomes condense and move together, aligning in the center of the dividing cell. At this stage, the chromosomes are distinguishable when viewed through a microscope. The first stage of mitosis and of meiosis I and II.

During prophase the chromosomes become visible as distinct structures, the nuclear envelope breaks down, and a spindle forms (Meiotic prophase I is more complex, and includes synapsis of homologous chromosomes and crossing over). During Prophase chromosomes become Clearly visible, nuclear envelope disappears, kinetochores and spindle fibers form.

To learn more about prophase , here

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6 0
2 years ago
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