Genes, Chromosomes, and Inheritance
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Questions and Answers

What is the function of a gene?

A gene carries genetic information which can be passed from generation to generation.

Where is DNA found in a cell?

DNA is found in the nucleus of a cell, in structures called chromosomes.

How many copies of each gene do humans and most other plants and animals have?

Humans and most other plants and animals have two copies of each gene.

What does a DNA molecule look like?

<p>A DNA molecule looks like a ladder made of two strands twisted around each other with cross-links holding them together, forming a double helix.</p> Signup and view all the answers

What is the characteristic chromosome number called?

<p>The characteristic chromosome number is called the chromosome complement.</p> Signup and view all the answers

What is the purpose of adding ice-cold ethanol in the DNA extraction process?

<p>To make the DNA come out of solution (precipitate)</p> Signup and view all the answers

What is the main purpose of DNA profiling in forensic science?

<p>To create a genetic profile unique to an individual for comparison with DNA found at a crime scene</p> Signup and view all the answers

What technique is used in DNA profiling to separate DNA molecules by size?

<p>Gel electrophoresis</p> Signup and view all the answers

What are some key concerns related to DNA profiling?

<p>Privacy, access to and use of data, wrongful convictions</p> Signup and view all the answers

What is the benefit of DNA profiling mentioned in the text?

<p>Reducing and Reversing Wrongful Convictions</p> Signup and view all the answers

Each gene controls multiple characteristics.

<p>False</p> Signup and view all the answers

All living organisms have the same chromosome number.

<p>False</p> Signup and view all the answers

DNA is not found in the nuclei of plant cells.

<p>False</p> Signup and view all the answers

The two strands of DNA are not twisted together to form a double helix.

<p>False</p> Signup and view all the answers

Inheritance does not involve passing genetic information from one generation to the next.

<p>False</p> Signup and view all the answers

Strawberry cells contain four of every kind of chromosome.

<p>False</p> Signup and view all the answers

In DNA profiling, a genetic profile is created based on the size of DNA molecules.

<p>True</p> Signup and view all the answers

Privacy concerns related to DNA profiling include violation of an individual's civil rights.

<p>True</p> Signup and view all the answers

The function of adding ice-cold ethanol in DNA extraction is to dissolve the DNA.

<p>False</p> Signup and view all the answers

DNA profiling can lead to both reducing and increasing wrongful convictions.

<p>False</p> Signup and view all the answers

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