Genetics

Mr. and Mrs. O’Malley have 3 children. You can tell that the children are brothers and sisters. Why do they not look exactly alike?

• Each child received a different combination of genes from each parent.

• The children received DNA from their step-parents.

• Each child received the same DNA from their parents.

• A child might receive more DNA from one parent than the other.

This produces cells for growth and repair.

• mitosis
• meiosis

How many alleles (letters) do each person carry for a trait?

• 1
• 2
• 3
• 4

An egg cell produced through MEIOSIS will have have how much of the parent cell's DNA?

• twice as much

• the same amount

• half as much

The daughter cells in mitosis are...

• Identical
• Unique

How many daughter cells are produced in meiosis?

• 4 daughter cells
• none of these
• 3
• 1

The cells produced in meiosis are...

• Identical
• Unique

A skin cell produced through MITOSIS will have how much of the parent cell's DNA?

• twice as much

• the same amount

• half as much

Which of the following is NOT a reason body cells go through mitosis?

• Organisms use mitosis to add new cells to increase their size.

• Organisms use mitosis for reproduction.

• Organisms depend on mitosis to repair damaged tissues.

• Organisms rely on mitosis to make specialized cells, such as skin, blood, and nerve cells.

How many daughter cells are produced in mitosis?

• 4 new cells
• 2 new cells
• One new cell
• none of these