Genes and DNA

What is DNA

• donuts need algea

• did no algebra

• do not answer

• deoxyribonucleic acid

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Why is DNA important?

• It teleports cookies to my locker.

• It carries the instructions for our cells.

• It allows me to be invisible.

• It gave us a snow day in August.

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A chromosome is made of coiled up ___________.

• cells

• nuclei

• DNA

The part of the cell that contains chromosomes and genes is the:

• Mitochondria

• Nucleus

• Chloroplast

• Ribosomes

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Which of the following best describes why siblings (except identical twins) do not look exactly alike?

• They inherit different genes from their parents

• They choose different lifestyles

• They eat different foods

• They live in different environments

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What is DNA?

• A type of protein that helps in digestion

• A molecule that contains the instructions an organism needs to develop, live, and reproduce

• A cell component that provides energy for the cell

• A type of carbohydrate that stores energy

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

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Why are identical twins genetically identical?

• They inherit exactly the same genes from their parents

• They live in the same environment

• They eat the same food

• They are born at the same time

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How many copies of each gene do you inherit from your parents?

• One copy from each parent

• Two copies from each parent

• One copy from one parent only

• Two copies from one parent and one copy from the other

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